0001437749-26-026123 | 10-Q | XBRL Viewer

Intangible Asset and Goodwill [Text Block]

Note 3. Intangible Assets

Components of intangible assets (excluding fully-amortized intangible assets) —

			June 30, 2026							December 31, 2025
	Weighted Average Useful Life (years)		Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount
Amortizable intangible assets
Core technology		11	$	41	$	(28	)	$	13	$	50	$	(32	)	$	18
Customer relationships		11		60		(51	)		9		67		(53	)		14
Non-amortizable intangible assets
Trademarks and trade names				36					36		39					39
			$	137	$	(79	)	$	58	$	156	$	(85	)	$	71

Net carrying amounts of intangible assets attributable to each of our operating segments—

	June 30, 2026
Light Vehicle	$	6
Commercial Vehicle		52
	$	58

Amortization expense related to amortizable intangible assets —

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
Charged to cost of sales	$	1	$	1	$	2	$	2
Charged to amortization of intangibles		1		2		3		4
Total amortization	$	2	$	3	$	5	$	6

Note 2 - Discontinued Operations

6 Months Ended

Jun. 30, 2026

Discontinued Operations, Disposed of by Sale [Member]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

Note 2. Discontinued Operations

In June 2025, we entered into a definitive agreement to sell our Off-Highway business to Allison Transmission Holdings, Inc. (Allison). The transaction closed on January 1, 2026, with Dana receiving gross cash proceeds of $2,664. Pursuant to the terms of the agreement, the purchase price was subject to post-closing adjustments based on net working capital and net indebtedness balances as of the closing date. Based on the final closing date net working capital and net indebtedness balances, we paid $34 to Allison during the second quarter of 2026.

Included in the gross cash proceeds received was $82 related to the Off-Highway business's Mexican operations which have not yet legally transferred to Allison. As a result, the $82 of proceeds has been deferred and included in other accrued liabilities on our consolidated balance sheet. The assets and liabilities of the Mexican operations will continue to be reported as held for sale on our consolidated balance sheet. The Mexican operations results of operations and cash flows will continue to be reported as discontinued operations on our consolidated statements of operations, comprehensive income and cash flows. We expect to complete the transfer of the Mexican operations to Allison by the end of 2026.

At closing of the transaction, we entered into a transition services agreement, engineering services agreement, intellectual property and trademark license agreements, and certain supply agreements with Allison. Services to be provided by Dana under the transition services agreement include finance, information technology, human resources and certain other administrative services for periods up to 24 months.

The major classes of line items included in net income from discontinued operations are as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Net sales	$	16		$	663		$	30		$	1,263
Cost of sales		12			542			26			1,039
Selling, general and administrative expenses					28						55
Amortization of intangibles					1						2
Restructuring charges, net					(1	)					2
Gain (loss) on sale of Off-Highway business		(5	)					1,186
Other income (expense), net		(6	)		(18	)		(55	)		(25	)
Earnings (loss) from discontinued operations before interest and income taxes		(7	)		75			1,135			140
Interest income					1						2
Earnings (loss) from discontinued operations before income taxes		(7	)		76			1,135			142
Income tax expense		4			33			40			52
Net income (loss) from discontinued operations	$	(11	)	$	43		$	1,095		$	90

During the three and six months ended June 30, 2026, we incurred $6 and $55 of Off-Highway business divestiture transaction related costs, compared with $14 and $34, respectively, during the corresponding periods in 2025. These costs were attributed to discontinued operations and included in other income (expense), net in the table above.

The carrying amounts of the major classes of assets and liabilities of disposal group held for sale are as follows:

	June 30,		December 31,
	2026		2025
Accounts receivable - Trade	$	13	$	360
Accounts receivable - Other				39
Inventories		23		533
Other current assets				97
Current assets of disposal group held for sale	$	36	$	1,029

Goodwill	$	—	$	270
Intangibles				72
Deferred tax assets				49
Other noncurrent assets				44
Operating lease assets				39
Property, plant and equipment, net		21		480
Noncurrent assets of disposal group held for sale	$	21	$	954

Current portion of long-term debt	$	—	$	2
Accounts payable		14		425
Accrued payroll and employee benefits				72
Taxes on income				11
Current portion of operating lease liabilities				9
Other accrued liabilities				169
Current liabilities of disposal group held for sale	$	14	$	688

Long-term debt	$	—	$	33
Noncurrent operating lease liabilities				30
Pension and postretirement obligations				48
Other noncurrent liabilities				72
Noncurrent liabilities of disposal group held for sale	$	—	$	183

Note 18 - Equity Affiliates (Details Textual) - USD ($) $ in Millions				6 Months Ended
	Jan. 30, 2026	Jun. 06, 2025	Apr. 25, 2025	Jun. 30, 2026	Jun. 30, 2025
Proceeds from Sale of Equity Method Investments				$ 1	$ 57
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	$ (8)	$ (8)		$ (8)	$ (7)
Axles India Limited [Member]
Equity Method Investment, Ownership Percentage			48.00%
Proceeds from Sale of Equity Method Investments			$ 43
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee			$ 19
Switch Mobility Limited [Member]
Proceeds from Sale of Equity Method Investments		10
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee		$ (8)

Note 10 - Financing Agreements - Revolving Facility Commitment Fees (Details) - Revolving Credit Facility [Member]	6 Months Ended
	Jun. 30, 2026
Total Net Leverage Ratio is Less than or Equal to 1.00:1.00 [Member]
Commitment fee	0.25%
Total Net Leverage Ratio is Greater than 1.00:1.00 but Less than or Equal to 2.00:1.00 [Member]
Commitment fee	0.375%
Total Net Leverage Ratio is Greater than 2.00:1.00 [Member]
Commitment fee	0.50%

Note 11 - Fair Value Measurements and Derivatives - Location and Amount of Gain or (Loss) Recognized in Income on Cash Flow Hedging Relationships (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net sales	$ 2,010	$ 1,935	$ 3,878	$ 3,716
Cost of sales	1,800	1,797	3,499	3,460
Other income (expense), net	(20)	(10)	(60)	(11)
Foreign Exchange Forward [Member] \| Cash Flow Hedging [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Cost of sales	(11)	5	(21)	12
Other income (expense), net	(3)	(1)	(5)
Currency Swap [Member] \| Cash Flow Hedging [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Other income (expense), net	$ (4)	$ 26	$ (9)	$ 52

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Note 15 - Other Income (Expense), Net - Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Non-service cost components of pension and OPEB costs	$ (3)	$ (2)	$ (4)	$ (4)
Government assistance	1	2	1	4
Foreign exchange gain (loss)	(6)	(1)	11	(6)
Strategic transaction expenses	(19)	(5)	(20)	(6)
Gain on sale of property, plant and equipment				1
Electric vehicle program termination charges	(3)		(59)
Loss on divestiture of ownership interests		(7)	(8)	(7)
Transition services income	8		18
Other, net	2	3	1	7
Other income (expense), net	$ (20)	$ (10)	$ (60)	$ (11)

Note 4 - Restructuring of Operations - Accrued Restructuring Costs and Activity (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2026
Balance	$ 15	$ 23
Charges to restructuring	11	19
Adjustments of accruals	(2)	(4)
Cash payments	(14)	(29)
Currency impact	2	3
Balance	12	12
Employee Termination Benefits [Member]
Balance	15	21
Charges to restructuring	5	8
Adjustments of accruals	(2)	(4)
Cash payments	(10)	(18)
Currency impact	2	3
Balance	10	10
Exit Costs [Member]
Balance	0	2
Charges to restructuring	6	11
Adjustments of accruals
Cash payments	(4)	(11)
Currency impact
Balance	$ 2	$ 2

Note 8 - Stock Compensation

6 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Text Block]

Note 8. Stock Compensation

The Compensation Committee of our Board of Directors approved the grant of RSUs, performance share units (PSUs) and Dana Transformation Awards shown in the table below during the six months ended June 30, 2026.

	Granted		Grant Date
	(In millions)		Fair Value*
RSUs		0.3	$	31.54
PSUs		0.3	$	33.24
Dana Transformation Awards		1.0	$	49.15

* Weighted-average per share

Compensation expense is generally measured based on the fair value at the date of grant and is recognized on a straight-line basis over the vesting period. Awards that are settled in cash are subject to liability accounting. Accordingly, the fair value of such awards is remeasured at the end of each reporting period until settled or expired. RSUs, PSUs and the Dana Transformation Awards accrue dividends, which are subject to the same vesting and forfeiture conditions as the original award. The fair value of RSUs is based on the closing market price of our common stock at the date of grant.

The number of PSUs granted in 2026 that ultimately vest is contingent upon achieving predetermined financial performance targets. The payout is further subject to a relative total shareholder return (“TSR”) modifier which is based on specified total shareholder return targets relative to peer companies. We estimated the grant date fair value of the PSUs using various assumptions as part of a Monte Carlo simulation. The risk-free interest rate of 3.56% was based on U.S. Treasury rate as of the grant date. The estimated volatility of 44.0% was based on the historical volatility of daily stock returns for a 2.9-year period preceding the grant date.

The Company also granted a special award tied to stock price performance (the Dana Transformation Awards). The payout is contingent upon the achievement of specified average stock price performance goals, measured over any 20 consecutive trading-days throughout a 4-year performance period. We estimated the grant date fair value of the Dana Transformation Awards using various assumptions as part of a Monte Carlo simulation. The risk-free interest rates of 3.64% and 3.66% were based on U.S. Treasury rates as of the January and February 2026 grant dates. The estimated volatility of 48.29% and 47.11% were based on the historical volatility of daily stock returns for a 4-year period preceding each respective grant date.

During the six months ended June 30, 2026, we paid $1.0 and $1.8 of cash to settle RSUs and PSUs and issued 0.7 and 0.8 million shares of common stock based on the vesting of RSUs and PSUs, respectively. We recognized stock compensation expense of $8 and $10 in the second quarters of 2026 and 2025 and expense of $19 and $23 during the respective year-to-date periods. At June 30, 2026, the total unrecognized compensation cost related to the nonvested awards granted and expected to vest was $64. This cost is expected to be recognized over a weighted-average period of 3.0 years. The breakout of the unrecognized compensation cost for the RSUs, PSUs, and Dana Transformation Awards is $18, $7, and $39, respectively. The weighted-average period in years for the RSUs, PSUs, and Dana Transformation Awards is 1.7, 1.3, and 4.0 years, respectively.

Insider Trading Arrangements	3 Months Ended	6 Months Ended
Insider Trading Arrangements	Jun. 30, 2026	Jun. 30, 2026
Trading Arrangements, by Individual [Table]
Material Terms of Trading Arrangement [Text Block]		Item 5. Other Information During the three months ended June 30, 2026, none of the Company’s directors or executive officers adopted or terminated any contract, instruction or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement".
Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false

Note 5 - Supplemental Balance Sheet and Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Inventory, Current [Table Text Block]

	June 30, 2026		December 31, 2025
Raw materials	$	456	$	458
Work in process and finished goods		524		557
Total	$	980	$	1,015

Schedule of Cash and Cash Equivalents [Table Text Block]

	June 30, 2026		December 31, 2025		June 30, 2025		December 31, 2024
Cash and cash equivalents	$	331	$	469	$	486	$	494
Restricted cash included in other current assets		8		7		5		9
Restricted cash included in other noncurrent assets		10		10		10		9
Total cash, cash equivalents and restricted cash	$	349	$	486	$	501	$	512

Note 2 - Discontinued Operations (Details Textual) - Off-highway Business [Member] - Discontinued Operations, Disposed of by Sale [Member] - Allison Transmission Holdings, Inc. [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 01, 2026	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disposal Group, Including Discontinued Operation, Consideration	$ 2,664
Payments for Disposal of Business		$ 34
Disposal Group, Including Discontinued Operation, Consideration, Deferred	82
Other Accrued Liabilities, Current	$ 82
Transition Services Agreement, Period (Month)	24 months
Disposal Group, Including Discontinued Operation, Other Expense		$ 6	$ 14	$ 55	$ 34

Note 10 - Financing Agreements (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Debt [Table Text Block]

	Interest Rate			June 30, 2026			December 31, 2025
Senior Notes due November 15, 2027		5.375	%	$	—		$	400
Senior Notes due June 15, 2028		5.625	%					400
Senior Euro Notes due July 15, 2029		3.000	%		210			382
Senior Notes due September 1, 2030		4.250	%		227			400
Senior Euro Notes due July 15, 2031		8.500	%		476			499
Senior Notes due February 15, 2032		4.500	%		198			350
Other indebtedness					241			181
Debt issuance costs					(8	)		(16	)
					1,344			2,596
Less: Current portion of long-term debt					27			30
Long-term debt, less debt issuance costs				$	1,317		$	2,566

Debt Instrument Redemption [Table Text Block]

	Redemption Price
	July			September			July			February
Year	2029 Notes			2030 Notes			2031 Notes			2032 Notes
2025		100.750	%
2026		100.000	%		102.125	%		104.250	%
2027		100.000	%		101.417	%		102.125	%		102.250	%
2028		100.000	%		100.708	%		100.000	%		101.500	%
2029					100.000	%		100.000	%		100.750	%
2030								100.000	%		100.000	%
2031											100.000	%

Schedule of Long-Term Debt Instruments [Table Text Block]

	Margin
Total Net Leverage Ratio	Base Rate			SOFR Rate
Less than or equal to 1.00:1.00		0.25	%		1.25	%
Greater than 1.00:1.00 but less than or equal to 2.00:1.00		0.50	%		1.50	%
Greater than 2.00:1.00		0.75	%		1.75	%

Schedule of Line of Credit Facilities [Table Text Block]

Total Net Leverage Ratio	Commitment Fee
Less than or equal to 1.00:1.00		0.250	%
Greater than 1.00:1.00 but less than or equal to 2.00:1.00		0.375	%
Greater than 2.00:1.00		0.500	%

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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Note 17 - Segments (Tables)

6 Months Ended

Jun. 30, 2026

Segment Reporting [Table Text Block]

	Light			Commercial
Three months ended June 30, 2026	Vehicle			Vehicle			Corporate			Total
External sales	$	1,379		$	631					$	2,010
Inter-segment sales		26			17						43
		1,405			648						2,053
Reconciliation of sales
Elimination of inter-segment sales											(43	)
Total consolidated sales										$	2,010
Less:
Cost of sales		1,215			538
Selling, general and administrative expenses		41			38
Other segment items (a)		(6	)		(4	)
Segment EBITDA	$	143		$	68					$	211

Purchases of property, plant and equipment	$	42		$	97		$	3		$	142
Segment net assets (b) - June 30, 2026	$	573		$	465		$	(72	)	$	966

	Light		Commercial
Three months ended June 30, 2025	Vehicle		Vehicle			Corporate			Total
External sales	$	1,335	$	600					$	1,935
Inter-segment sales		35		19						54
		1,370		619						1,989
Reconciliation of sales
Elimination of inter-segment sales										(54	)
Total consolidated sales									$	1,935
Less:
Cost of sales		1,218		536
Selling, general and administrative expenses		42		34
Other segment items (a)		2		(2	)
Segment EBITDA	$	112	$	47					$	159

Purchases of property, plant and equipment	$	30	$	4		$	3		$	37
Segment net assets (b) - December 31, 2025	$	465	$	471		$	(88	)	$	848

	Light			Commercial
Six months ended June 30, 2026	Vehicle			Vehicle			Corporate		Total
External sales	$	2,648		$	1,230				$	3,878
Inter-segment sales		52			32					84
		2,700			1,262					3,962
Reconciliation of sales
Elimination of inter-segment sales										(84	)
Total consolidated sales									$	3,878
Less:
Cost of sales		2,359			1,051
Selling, general and administrative expenses		79			74
Other segment items (a)		(7	)		(6	)
Segment EBITDA	$	255		$	131				$	386

Purchases of property, plant and equipment	$	89		$	108		$	7	$	204

	Light		Commercial
Six months ended June 30, 2025	Vehicle		Vehicle			Corporate		Total
External sales	$	2,548	$	1,168				$	3,716
Inter-segment sales		71		42					113
		2,619		1,210					3,829
Reconciliation of sales
Elimination of inter-segment sales									(113	)
Total consolidated sales								$	3,716
Less:
Cost of sales		2,356		1,052
Selling, general and administrative expenses		85		69
Other segment items (a)		2		(1	)
Segment EBITDA	$	180	$	88				$	268

Purchases of property, plant and equipment	$	79	$	16		$	9	$	104

Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Segment EBITDA	$	211		$	159		$	386		$	268
Corporate expense and other items, net		(4	)		(12	)		(8	)		(28	)
Depreciation		(82	)		(89	)		(166	)		(171	)
Amortization		(2	)		(3	)		(5	)		(6	)
Non-service cost components of pension and OPEB costs		(3	)		(2	)		(4	)		(4	)
Restructuring charges, net		(9	)		(11	)		(15	)		(13	)
Stock compensation expense		(8	)		(10	)		(19	)		(23	)
Strategic transaction expenses		(19	)		(5	)		(20	)		(6	)
Gain on sale of property, plant and equipment											1
Supplier capacity charge adjustment											19
Amounts attributable to previously closed/divested operations		(1	)					(1	)
Distressed supplier costs		(2	)					(2	)
Loss on divestiture of ownership interests					(7	)		(8	)		(7	)
Electric vehicle program termination charges		(8	)					(64	)
Foreign exchange gain on unhedged intercompany loans		2						23
Other items		1			(4	)		(2	)		(6	)
Earnings from continuing operations before interest and income taxes		76			16			95			24
Loss on extinguishment of debt								(7	)
Interest income		4			3			10			5
Interest expense		21			44			43			83
Earnings (loss) from continuing operations before income taxes	$	59		$	(25	)	$	55		$	(54	)

Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block]

	June 30,			December 31,
	2026		2025
Segment net assets	$	966	$	848
Accounts payable		1,301		1,154
Cash and cash equivalents		331		469
Accounts receivable - Other		286		254
Other current assets		285		114
Current assets of disposal group held for sale		36		1,029
Intangibles		58		71
Deferred tax assets		495		534
Other noncurrent assets		114		102
Investment in affiliates		112		102
Operating lease assets		166		305
Property, plant and equipment, net		1,942		1,872
Noncurrent assets of disposal group held for sale		21		954
Total assets	$	6,113	$	7,808

Tabular disclosure of segment reporting. Includes, but is not limited to, reconciliation of reportable segment amount to corresponding consolidated total.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-31

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-34

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-32

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-15

Note 13 - Warranty Obligations (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Balance, beginning of period	$	70		$	87		$	71		$	88
Amounts accrued for current period sales		13			9			23			18
Adjustments of prior estimates					3			3			5
Settlements of warranty claims		(17	)		(16	)		(31	)		(28	)
Currency impact					1						1
Balance, end of period	$	66		$	84		$	66		$	84

Note 11 - Fair Value Measurements and Derivatives (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

			Fair Value
Category	Balance Sheet Location	Fair Value Level	June 30, 2026		December 31, 2025
Currency forward contracts
Cash flow hedges	Accounts receivable - Other	2	$	18	$	21
Cash flow hedges	Other accrued liabilities	2		1		1
Undesignated	Accounts receivable - Other	2		8		4
Undesignated	Other accrued liabilities	2		3		7
Currency swaps
Cash flow hedges	Other noncurrent liabilities	2		17		25
Undesignated	Other noncurrent liabilities	2				2

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

			June 30, 2026				December 31, 2025
	Fair Value Level		Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt		2	$	1,105	$	1,136	$	2,418	$	2,444

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

Underlying Financial Instrument							Derivative Financial Instrument
Description	Type	Face Amount		Rate			Notional Amount		Traded Amount		Inflow Rate			Outflow Rate
Luxembourg Intercompany Notes	Receivable	€	278		3.70	%	€	278	$	300		5.38	%		3.70	%

Schedule of Derivative Instruments [Table Text Block]

		Notional Amount (U.S. Dollar Equivalent)
Functional Currency	Traded Currency	Designated		Undesignated		Total		Maturity
U.S. dollar	Canadian dollar, Mexican peso	$	209	$	75	$	284	Mar-2027
Euro	U.S. dollar, Australian dollar, British pound, Hungarian forint, Mexican peso, Swedish krona		203		12		215	Sep-2027
Indian rupee	U.S. dollar, euro, British pound				58		58	Mar-2027
Brazilian real	U.S. dollar, euro		28		11		39	Dec-2026
South African rand	U.S. dollar, euro, Thai baht				16		16	Nov-2026
Canadian dollar	U.S. dollar		5		5		10	Aug-2026
Thai baht	U.S. dollar				58		58	Jul-2026
British pound	U.S. dollar, euro		7		6		13	Sep-2026
Mexican peso	U.S. dollar				3		3	Jul-2026
Swedish krona	euro				2		2	Jul-2026
Total forward contracts			452		246		698

U.S. dollar	euro		318		—		318	Nov-2027
Total currency swaps			318		—		318
Total currency derivatives		$	770	$	246	$	1,016

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Deferred Gain (Loss) in AOCI
	June 30, 2026		December 31, 2025		Gain (loss) expected to be reclassified into income in one year or less
Forward Contracts	$	14	$	20	$	14
Cross-Currency Swaps				2
Total	$	14	$	22	$	14

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
Derivatives Designated as Cash Flow Hedges	2026			2025			2026			2025
Total amounts of income and expense line items presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded
Net sales	$	2,010		$	1,935		$	3,878		$	3,716
Cost of sales		1,800			1,797			3,499			3,460
Other income (expense), net		(20	)		(10	)		(60	)		(11	)
(Gain) or loss on cash flow hedging relationships
Foreign currency forwards
Amount of (gain) loss reclassified from AOCI into income
Cost of sales		(11	)		5			(21	)		12
Other income (expense), net		(3	)		(1	)		(5	)
Cross-currency swaps
Amount of (gain) loss reclassified from AOCI into income
Other income (expense), net		(4	)		26			(9	)		52

Derivatives Not Designated as Hedging Instruments [Table Text Block]

	Three Months Ended					Six Months Ended
	June 30,					June 30,
Derivatives Not Designated as Hedging Instruments	2026		2025			2026			2025
Gain (loss) recognized in income
Foreign currency forward contracts
Cost of sales	$	2	$	1		$	6		$	—
Other income (expense), net		1		(11	)		(6	)		(17	)

Note 16 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net sales	$ 2,010	$ 1,935	$ 3,878	$ 3,716
Light Vehicle Segment [Member]
Net sales	1,379	1,335	2,648	2,548
Commercial Vehicle Segment [Member]
Net sales	631	600	1,230	1,168
North America [Member]
Net sales	1,202	1,157	2,286	2,205
North America [Member] \| Light Vehicle Segment [Member]
Net sales	957	928	1,820	1,745
North America [Member] \| Commercial Vehicle Segment [Member]
Net sales	245	229	466	460
Europe [Member]
Net sales	411	386	819	747
Europe [Member] \| Light Vehicle Segment [Member]
Net sales	213	192	415	373
Europe [Member] \| Commercial Vehicle Segment [Member]
Net sales	198	194	404	374
South America [Member]
Net sales	199	183	360	338
South America [Member] \| Light Vehicle Segment [Member]
Net sales	65	58	109	105
South America [Member] \| Commercial Vehicle Segment [Member]
Net sales	134	125	251	233
Asia Pacific [Member]
Net sales	198	209	413	426
Asia Pacific [Member] \| Light Vehicle Segment [Member]
Net sales	144	157	304	325
Asia Pacific [Member] \| Commercial Vehicle Segment [Member]
Net sales	$ 54	$ 52	$ 109	$ 101

Note 4 - Restructuring of Operations

6 Months Ended

Jun. 30, 2026

Restructuring and Related Activities Disclosure [Text Block]

Note 4. Restructuring of Operations

Our restructuring activities include rationalizing our operating footprint by consolidating facilities, positioning operations in lower cost locations, and headcount reduction initiatives focused on reducing operating and overhead costs. Restructuring expense includes costs associated with current and previously announced actions and is comprised of contractual and noncontractual separation costs and exit costs, including certain costs of facilities that we are in the process of closing.

During 2024, we announced actions to consolidate certain manufacturing facilities along with global headcount reductions focused on reducing engineering and overhead costs in response to market dynamics, including delays in the adoption of electric vehicles. During 2026, we continued to execute on these initiatives.

Accrued restructuring costs and activity —

	Employee Termination Benefits			Exit Costs			Total
Balance, March 31, 2026	$	15		$	—		$	15
Charges to restructuring		5			6			11
Adjustments of accruals		(2	)					(2	)
Cash payments		(10	)		(4	)		(14	)
Currency impact		2						2
Balance, June 30, 2026	$	10		$	2		$	12

Balance, December 31, 2025	$	21		$	2		$	23
Charges to restructuring		8			11			19
Adjustments of accruals		(4	)					(4	)
Cash payments		(18	)		(11	)		(29	)
Currency impact		3						3
Balance, June 30, 2026	$	10		$	2		$	12

At June 30, 2026, the accrued employee termination benefits include costs to reduce approximately 200 employees to be completed over the next year.

Note 7 - Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Net income (loss) from continuing operations	$	11		$	(12	)	$	(4	)	$	(29	)
Less: Noncontrolling interests net income from continuing operations		5			4			9			9
Net income (loss) from continuing operations attributable to the parent company		6			(16	)		(13	)		(38	)
Net income (loss from discontinued operations		(11	)		43			1,095			90
Net income attributable to the parent company	$	(5	)	$	27		$	1,082		$	52

Denominator:
Weighted-average common shares outstanding - Basic		108.1			143.8			109.0			144.7
Employee compensation-related shares		1.4			—			—			—
Weighted-average common shares outstanding - Diluted		109.5			143.8			109.0			144.7

Note 18 - Equity Affiliates (Tables)

6 Months Ended

Jun. 30, 2026

Equity Method Investments [Table Text Block]

	Ownership Percentage	Investment
Dongfeng Dana Axle Co., Ltd.	50%	$	71
ROC-Spicer, Ltd.	50%		23
Tai Ya Investment (HK) Co., Limited	50%		6
All others as a group			6
Investments in equity affiliates			106
Investments in affiliates carried at cost			6
Investments in affiliates		$	112

Note 3 - Intangible Assets - Operating Segments Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Intangible Assets, Net (Excluding Goodwill)	$ 58		$ 58		$ 71
Charged to cost of sales	1	$ 1	2	$ 2
Charged to amortization of intangibles	1	2	3	4
Total amortization	2	$ 3	5	$ 6
Light Vehicle Segment [Member]
Intangible Assets, Net (Excluding Goodwill)	6		6
Commercial Vehicle Segment [Member]
Intangible Assets, Net (Excluding Goodwill)	$ 52		$ 52

Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Note 4 - Restructuring of Operations (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

	Employee Termination Benefits			Exit Costs			Total
Balance, March 31, 2026	$	15		$	—		$	15
Charges to restructuring		5			6			11
Adjustments of accruals		(2	)					(2	)
Cash payments		(10	)		(4	)		(14	)
Currency impact		2						2
Balance, June 30, 2026	$	10		$	2		$	12

Balance, December 31, 2025	$	21		$	2		$	23
Charges to restructuring		8			11			19
Adjustments of accruals		(4	)					(4	)
Cash payments		(18	)		(11	)		(29	)
Currency impact		3						3
Balance, June 30, 2026	$	10		$	2		$	12

Note 10 - Financing Agreements - Revolving Facility Margins (Details) - Revolving Credit Facility [Member]	6 Months Ended
	Jun. 30, 2026
Base Rate [Member] \| Total Net Leverage Ratio is Less than or Equal to 1.00:1.00 [Member]
Margin	0.25%
Base Rate [Member] \| Total Net Leverage Ratio is Greater than 1.00:1.00 but Less than or Equal to 2.00:1.00 [Member]
Margin	0.50%
Base Rate [Member] \| Total Net Leverage Ratio is Greater than 2.00:1.00 [Member]
Margin	0.75%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Total Net Leverage Ratio is Less than or Equal to 1.00:1.00 [Member]
Margin	1.25%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Total Net Leverage Ratio is Greater than 1.00:1.00 but Less than or Equal to 2.00:1.00 [Member]
Margin	1.50%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Total Net Leverage Ratio is Greater than 2.00:1.00 [Member]
Margin	1.75%

Note 11 - Fair Value Measurements and Derivatives - Fair Value of Financial Instruments (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Reported Value Measurement [Member]
Long-term debt	$ 1,105	$ 2,418
Estimate of Fair Value Measurement [Member]
Long-term debt	$ 1,136	$ 2,444

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Note 18 - Equity Affiliates

6 Months Ended

Jun. 30, 2026

Equity Method Investments and Joint Ventures Disclosure [Text Block]

Note 18. Equity Affiliates

We have a number of investments in entities that engage in the manufacture and supply of vehicular parts (primarily axles and driveshafts).

Equity method investments at June 30, 2026 —

	Ownership Percentage	Investment
Dongfeng Dana Axle Co., Ltd.	50%	$	71
ROC-Spicer, Ltd.	50%		23
Tai Ya Investment (HK) Co., Limited	50%		6
All others as a group			6
Investments in equity affiliates			106
Investments in affiliates carried at cost			6
Investments in affiliates		$	112

On April 25, 2025, we sold our 48% ownership interest in Axles India Limited for $43 in cash. The $19 pre-tax gain on the transaction is included in equity in earnings of affiliates.

On June 6, 2025, we sold our ownership interest in Switch Mobility Limited for $10. The $8 pre-tax loss on the transaction is included in other income (expense), net.

Note 16 - Revenue From Contracts With Customers (Tables)

6 Months Ended

Jun. 30, 2026

Disaggregation of Revenue [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
Light Vehicle
North America	$	957	$	928	$	1,820	$	1,745
Europe		213		192		415		373
South America		65		58		109		105
Asia Pacific		144		157		304		325
Total	$	1,379	$	1,335	$	2,648	$	2,548

Commercial Vehicle
North America	$	245	$	229	$	466	$	460
Europe		198		194		404		374
South America		134		125		251		233
Asia Pacific		54		52		109		101
Total	$	631	$	600	$	1,230	$	1,168

Total
North America	$	1,202	$	1,157	$	2,286	$	2,205
Europe		411		386		819		747
South America		199		183		360		338
Asia Pacific		198		209		413		426
Total	$	2,010	$	1,935	$	3,878	$	3,716

Note 11 - Fair Value Measurements and Derivatives (Details Textual) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Sep. 30, 2024	Jun. 30, 2024
Foreign Exchange Forward [Member]
Derivative, Notional Amount	$ 698	$ 898
Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative, Notional Amount	452
Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member] \| Net Investment Hedging [Member]
Derivative, Notional Amount			$ 122	$ 100
Currency Swap [Member]
Derivative, Notional Amount	318	$ 712
Currency Swap [Member] \| Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 318

Note 5 - Supplemental Balance Sheet and Cash Flow Information - Inventory Components (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Raw materials	$ 456	$ 458
Work in process and finished goods	524	557
Total	$ 980	$ 1,015

Note 11 - Fair Value Measurements and Derivatives

6 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Text Block]

Note 11. Fair Value Measurements and Derivatives

In measuring the fair value of our assets and liabilities, we use market data or assumptions that we believe market participants would use in pricing an asset or liability including assumptions about risk when appropriate. Our valuation techniques include a combination of observable and unobservable inputs.

Fair value measurements on a recurring basis — Assets and liabilities that are carried in our balance sheets at fair value are as follows:

			Fair Value
Category	Balance Sheet Location	Fair Value Level	June 30, 2026		December 31, 2025
Currency forward contracts
Cash flow hedges	Accounts receivable - Other	2	$	18	$	21
Cash flow hedges	Other accrued liabilities	2		1		1
Undesignated	Accounts receivable - Other	2		8		4
Undesignated	Other accrued liabilities	2		3		7
Currency swaps
Cash flow hedges	Other noncurrent liabilities	2		17		25
Undesignated	Other noncurrent liabilities	2				2

Fair Value Level 2 assets and liabilities reflect the use of significant other observable inputs.

Fair value of financial instruments — The financial instruments that are not carried in our balance sheets at fair value are as follows:

			June 30, 2026				December 31, 2025
	Fair Value Level		Carrying Value		Fair Value		Carrying Value		Fair Value
Long-term debt		2	$	1,105	$	1,136	$	2,418	$	2,444

Foreign currency derivatives — Our foreign currency derivatives include forward contracts associated with forecasted transactions, primarily involving the purchases and sales of inventory, as well as currency swaps associated with certain recorded external notes payable and intercompany loans receivable and payable. Periodically, our foreign currency derivatives also include net investment hedges of certain of our investments in foreign operations.

We have executed fixed-to-fixed cross-currency swaps in conjunction with the issuance of certain notes to eliminate the variability in the functional-currency-equivalent cash flows due to changes in exchange rates associated with the forecasted principal and interest payments. All of the underlying designated financial instruments have been designated as the hedged items in each respective cash flow hedge relationship, as shown in the table below. Designated as cash flow hedges of the forecasted principal and interest payments of the underlying designated financial instruments, all of the swaps economically convert the underlying designated financial instruments into the functional currency of each respective holder. The impact of the interest rate differential between the inflow and outflow rates on fixed-to-fixed cross-currency swaps is recognized during each period as a component of interest expense for hedges of external debt and as a component of other income (expense), net for hedges of intercompany debt.

The following fixed-to-fixed cross-currency swaps were outstanding at June 30, 2026:

Underlying Financial Instrument							Derivative Financial Instrument
Description	Type	Face Amount		Rate			Notional Amount		Traded Amount		Inflow Rate			Outflow Rate
Luxembourg Intercompany Notes	Receivable	€	278		3.70	%	€	278	$	300		5.38	%		3.70	%

The designated swaps are expected to be highly effective in offsetting the corresponding currency-based changes in cash outflows related to the underlying designated financial instruments. Based on our qualitative assessment that the critical terms of the underlying designated financial instruments and the associated swaps match and that all other required criteria have been met, we do not expect to incur any ineffectiveness. As effective cash flow hedges, changes in the fair value of the swaps will be recorded in OCI during each period. Additionally, to the extent the swaps remain effective, the appropriate portion of AOCI will be reclassified to earnings each period as an offset to the foreign exchange gain or loss resulting from the remeasurement of the underlying designated financial instruments. To the extent the swaps are no longer effective, changes in their fair values will be recorded in earnings.

The total notional amount of outstanding foreign currency forward contracts, involving the exchange of various currencies, was $698 at June 30, 2026 and $898 at December 31, 2025. The total notional amount of outstanding foreign currency swaps, including the fixed-to-fixed cross-currency swaps, was $318 at June 30, 2026 and $712 at December 31, 2025.

The following currency derivatives were outstanding at June 30, 2026:

		Notional Amount (U.S. Dollar Equivalent)
Functional Currency	Traded Currency	Designated		Undesignated		Total		Maturity
U.S. dollar	Canadian dollar, Mexican peso	$	209	$	75	$	284	Mar-2027
Euro	U.S. dollar, Australian dollar, British pound, Hungarian forint, Mexican peso, Swedish krona		203		12		215	Sep-2027
Indian rupee	U.S. dollar, euro, British pound				58		58	Mar-2027
Brazilian real	U.S. dollar, euro		28		11		39	Dec-2026
South African rand	U.S. dollar, euro, Thai baht				16		16	Nov-2026
Canadian dollar	U.S. dollar		5		5		10	Aug-2026
Thai baht	U.S. dollar				58		58	Jul-2026
British pound	U.S. dollar, euro		7		6		13	Sep-2026
Mexican peso	U.S. dollar				3		3	Jul-2026
Swedish krona	euro				2		2	Jul-2026
Total forward contracts			452		246		698

U.S. dollar	euro		318		—		318	Nov-2027
Total currency swaps			318		—		318
Total currency derivatives		$	770	$	246	$	1,016

Designated cash flow hedges — With respect to contracts designated as cash flow hedges, changes in fair value during the period in which the contracts remain outstanding are reported in OCI to the extent such contracts remain effective. Effectiveness is measured by using regression analysis to determine the degree of correlation between the change in the fair value of the derivative instrument and the change in the associated foreign currency exchange rates. Changes in the fair value of contracts not designated as cash flow hedges or as net investment hedges are recognized in other income (expense), net in the period in which the changes occur. Realized gains and losses from currency-related forward contracts associated with forecasted transactions or from other derivative instruments, including those that have been designated as cash flow hedges and those that have not been designated, are recognized in the same line item in the consolidated statement of operations in which the underlying forecasted transaction or other hedged item is recorded. Accordingly, amounts are potentially recorded in sales, cost of sales or, in certain circumstances, other income (expense), net.

The following table provides a summary of deferred gains (losses) reported in AOCI as well as the amount expected to be reclassified to income in one year or less:

	Deferred Gain (Loss) in AOCI
	June 30, 2026		December 31, 2025		Gain (loss) expected to be reclassified into income in one year or less
Forward Contracts	$	14	$	20	$	14
Cross-Currency Swaps				2
Total	$	14	$	22	$	14

The following table provides a summary of the location and amount of gains or losses recognized in the consolidated statement of operations associated with cash flow hedging relationships:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
Derivatives Designated as Cash Flow Hedges	2026			2025			2026			2025
Total amounts of income and expense line items presented in the consolidated statement of operations in which the effects of cash flow hedges are recorded
Net sales	$	2,010		$	1,935		$	3,878		$	3,716
Cost of sales		1,800			1,797			3,499			3,460
Other income (expense), net		(20	)		(10	)		(60	)		(11	)
(Gain) or loss on cash flow hedging relationships
Foreign currency forwards
Amount of (gain) loss reclassified from AOCI into income
Cost of sales		(11	)		5			(21	)		12
Other income (expense), net		(3	)		(1	)		(5	)
Cross-currency swaps
Amount of (gain) loss reclassified from AOCI into income
Other income (expense), net		(4	)		26			(9	)		52

The amounts reclassified from AOCI into income for the cross-currency swaps represent an offset to a foreign exchange loss on our foreign currency-denominated intercompany and external debt instruments.

Certain of our hedges of forecasted transactions have not formally been designated as cash flow hedges. As undesignated forward contracts, the changes in the fair value of such contracts are included in earnings for the duration of the outstanding forward contract. Any realized gain or loss on the settlement of such contracts is recognized in the same period and in the same line item in the consolidated statement of operations as the underlying transaction. The following table provides a summary of the location and amount of gains or losses recognized in the consolidated statement of operations associated with undesignated hedging relationships.

	Three Months Ended					Six Months Ended
	June 30,					June 30,
Derivatives Not Designated as Hedging Instruments	2026		2025			2026			2025
Gain (loss) recognized in income
Foreign currency forward contracts
Cost of sales	$	2	$	1		$	6		$	—
Other income (expense), net		1		(11	)		(6	)		(17	)

Net investment hedges — We periodically designate derivative contracts or underlying non-derivative financial instruments as net investment hedges. With respect to contracts designated as net investment hedges, we apply the forward method, but for non-derivative financial instruments designated as net investment hedges, we apply the spot method. Under both methods, we report changes in fair value in the cumulative translation adjustment (CTA) component of OCI during the period in which the contracts remain outstanding to the extent such contracts and non-derivative financial instruments remain effective. During the second quarter of 2024, we entered into foreign currency forwards with a notional value of $100 that we designated as a net investment hedge of the foreign currency exposure related to a China renminbi denominated subsidiary. These forwards matured in September 2025. During the third quarter of 2024, we entered into foreign currency forwards with a notional value of $122 that we designated as a net investment hedge of the foreign currency exposure related to a euro denominated subsidiary. These forwards matured in November 2025.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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Note 2 - Discontinued Operations - Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Net income (loss) from discontinued operations	$ (11)	$ 43	$ 1,095	$ 90
Current assets of disposal group held for sale	36		36		$ 1,029
Noncurrent assets of disposal group held for sale	21		21		954
Current liabilities of disposal group held for sale	14		14		688
Noncurrent liabilities of disposal group held for sale					183
Discontinued Operations, Disposed of by Sale [Member] \| Off-highway Business [Member]
Net sales	16	663	30	1,263
Cost of sales	12	542	26	1,039
Selling, general and administrative expenses		28		55
Amortization of intangibles		1		2
Restructuring charges, net		(1)		2
Gain (loss) on sale of Off-Highway business	(5)		1,186
Other income (expense), net	(6)	(18)	(55)	(25)
Earnings (loss) from discontinued operations before interest and income taxes	(7)	75	1,135	140
Interest income		1		2
Earnings (loss) from discontinued operations before income taxes	(7)	76	1,135	142
Income tax expense	4	33	40	52
Net income (loss) from discontinued operations	(11)	$ 43	1,095	$ 90
Inventories	23		23		533
Other current assets					97
Current assets of disposal group held for sale	36		36		1,029
Goodwill	0		0		270
Intangibles					72
Deferred tax assets					49
Other noncurrent assets					44
Operating lease assets					39
Property, plant and equipment, net	21		21		480
Noncurrent assets of disposal group held for sale	21		21		954
Current portion of long-term debt	0		0		2
Accounts payable	14		14		425
Accrued payroll and employee benefits					72
Taxes on income					11
Current portion of operating lease liabilities					9
Other accrued liabilities					169
Current liabilities of disposal group held for sale	14		14		688
Long-term debt	0		0		33
Noncurrent operating lease liabilities					30
Pension and postretirement obligations					48
Other noncurrent liabilities					72
Noncurrent liabilities of disposal group held for sale	0		0		183
Discontinued Operations, Disposed of by Sale [Member] \| Off-highway Business [Member] \| Trade Accounts Receivable [Member]
Accounts receivable - Trade	13		13		360
Discontinued Operations, Disposed of by Sale [Member] \| Off-highway Business [Member] \| Other Accounts Receivable [Member]
Accounts receivable - Trade					$ 39

Note 10 - Financing Agreements (Details Textual) $ in Thousands, € in Millions											3 Months Ended		6 Months Ended
	Jul. 10, 2026 USD ($)	Jul. 01, 2026	Jun. 10, 2026 USD ($)	Jan. 08, 2026 USD ($)	Jan. 07, 2026 USD ($)	Jan. 07, 2026 EUR (€)	Jan. 02, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 04, 2025 USD ($)	Jul. 31, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) Rate	Jun. 30, 2025 USD ($)	Jul. 02, 2026 USD ($)	Dec. 04, 2025 EUR (€)
Repayments of Long-Term Debt													$ 1,338,000	$ 210,000
Gain (Loss) on Extinguishment of Debt													(7,000)
Term A Facility [Member]
Repayments of Long-Term Debt							$ 225,000	$ 25,000
Line of Credit Facility, Maximum Borrowing Capacity										$ 250,000
Line of Credit Facility, Maturity, Period After Business Sale (Day)										5 days
Debt Instrument, Periodic Payment, Percentage of Original Amount										10.00%
Term A Facility [Member] \| Subsequent Event [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000
Debt Instrument, Periodic Payment, Percentage of Original Amount	10.00%
Debt Instrument, Term (Month)	364 days
Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity											275,000		$ 275,000
Line of Credit Facility, Commitment Fee Percentage (Rate) \| Rate													0.125%
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 1,200,000
Long-Term Line of Credit											0		$ 0
Letters of Credit Outstanding, Amount											10,000		10,000
Line of Credit Facility, Remaining Borrowing Capacity											$ 1,140,000		$ 1,140,000
Debt Instrument, Covenant, Maximum First Lien Net Leverage Ratio													2
Revolving Credit Facility [Member] \| Subsequent Event [Member]
Line of Credit Facility, Maximum Borrowing Capacity															$ 1,200,000
Senior Notes due November 15, 2027 [Member]
Debt Instrument, Redemption Price, Percentage									100.00%
Interest Payable									$ 173,000
Repayments of Long-Term Debt				$ 262,000	$ 138,000
Senior Notes due June 15, 2028 [Member]
Interest Payable									173,000
Repayments of Long-Term Debt				$ 258,000	142,000
Senior Notes Due July 15, 2029 [Member]
Interest Payable \| €																€ 141
Repayments of Long-Term Debt					164,000	€ 141
Senior Notes Due September 1, 2030 [Member]
Interest Payable									173,000
Repayments of Long-Term Debt					173,000
Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage													100.00%
Interest Payable \| €																€ 184
Repayments of Long-Term Debt					10,000	€ 9
Senior Notes Due July 15, 2031 [Member] \| Subsequent Event [Member]
Debt Instrument, Redemption Price, Percentage		104.25%
Senior Notes Due July 15, 2031 [Member] \| Redeem up to 40% of Aggregate Principle Amount [Member]
Debt Instrument, Redemption Price, Percentage													108.50%
Debt Instrument, Percentage of Principal Amount Outstanding													50.00%
Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage													100.00%
Interest Payable									$ 152,000
Repayments of Long-Term Debt					$ 152,000
Senior Notes Due November 15, 2027 and Senior Notes Due June 15, 2028 [Member]
Debt Instrument, Redemption Price, Percentage				100.00%					100.00%
Senior Notes Due November 2027, June 2028, July 2029, September 2030, July 2031, and February 2032 [Member]
Debt Instrument, Redemption Price, Percentage					100.00%	100.00%
Gain (Loss) on Extinguishment of Debt													$ (7,000)
Bridge Facility [Member]
Debt Instrument, Face Amount			2,600,000
Debt Issuance Costs, Gross			$ 17,000
Debt Instrument, Term (Month)			15 months
Term Loan A [Member]
Debt Instrument, Face Amount			$ 350,000
Term Loan A [Member] \| Subsequent Event [Member]
Debt Instrument, Face Amount															$ 350,000

Note 6 - Stockholders' Equity - Changes in Each Component of Accumulated Other Comprehensive Income (AOCI) of the Parent (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2026

Mar. 31, 2026

Jun. 30, 2025

Mar. 31, 2025

Jun. 30, 2026

Jun. 30, 2025

Currency translation adjustments realized in Off-Highway business divestiture

$ 2,014

$ 899

$ 1,446

$ 1,396

$ 899

$ 1,396

179

Accumulated Foreign Currency Adjustment Attributable to Parent [Member]

1,983

2,014

1,270

1,446

1,983

1,270

Currency translation adjustments

(751)

(932)

(963)

(977)

(932)

(977)

Currency translation adjustments realized in Off-Highway business divestiture

177

181

Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]

(730)

(751)

(924)

(963)

(730)

(924)

Reclassification of amount to net income

(11)

(29)

Holding gains and losses

(11)

^[1]

(18)

(17)

Tax benefit

(6)

(5)

(2)

(4)

Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]

(11)

Reclassification adjustment for net actuarial losses included in net periodic benefit cost

(120)

(119)

(136)

(119)

(136)

^[2]

(1)

Tax benefit

(1)

(1)

AOCI Attributable to Parent [Member]

(120)

(136)

(120)

(136)

Currency translation adjustments

(856)

(1,032)

(1,110)

(1,142)

(1,032)

(1,142)

Currency translation adjustments realized in Off-Highway business divestiture

177

Holding gains and losses

(11)

Reclassification of amount to net income

^[1]

(18)

(17)

Reclassification adjustment for net actuarial losses included in net periodic benefit cost

^[2]

(1)

Tax benefit

(7)

(5)

176

Restricted Stock Units (RSUs) [Member]

$ (837)

$ (856)

$ (1,047)

$ (1,110)

$ (837)

$ (1,047)

[1]	Realized gains and losses from currency-related forward contracts associated with forecasted transactions or from other derivative instruments treated as cash flow hedges are reclassified from AOCI into the same line item in the consolidated statement of operations in which the underlying forecasted transaction or other hedged item is recorded. See Note 11 for additional details.
[2]	See Note 9 for additional details.

Note 8 - Stock Compensation - Granted Awards Activity (Details)
shares in Millions

6 Months Ended

Jun. 30, 2026

$ / shares

Granted (in shares) | shares

0.3

Grant Date Fair Value (in dollars per share) | $ / shares

$ 31.54

^[1]

Performance Share Units [Member]

Granted (in shares) | shares

0.3

Grant Date Fair Value (in dollars per share) | $ / shares

$ 33.24

^[1]

Dana Transformation Awards [Member]

Granted (in shares) | shares

1.0

Grant Date Fair Value (in dollars per share) | $ / shares

$ 49.15

^[1]

[1]	Weighted-average per share

Note 6 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2026	Feb. 11, 2026	Jun. 08, 2025
Common Stock Shares Issued Not Disclosed	true		true
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.12	$ 0.12
Share Repurchase Program Authorized June 8, 2025 [Member]
Share Repurchase Program, Authorized, Amount				$ 2,000	$ 1,000
Treasury Stock, Shares, Acquired (in shares)	1,240,858		5,664,914
Treasury Stock, Value, Acquired, Cost Method	$ 44		$ 169
Share Repurchase Program, Remaining Authorized, Amount	1,181		$ 1,181
Share Repurchase Program, Excise Tax	$ 6

Number of shares that have been repurchased during the period and are being held in treasury.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Note 10 - Financing Agreements

6 Months Ended

Jun. 30, 2026

Debt Disclosure [Text Block]

Note 10. Financing Agreements

Long-term debt at —

	Interest Rate			June 30, 2026			December 31, 2025
Senior Notes due November 15, 2027		5.375	%	$	—		$	400
Senior Notes due June 15, 2028		5.625	%					400
Senior Euro Notes due July 15, 2029		3.000	%		210			382
Senior Notes due September 1, 2030		4.250	%		227			400
Senior Euro Notes due July 15, 2031		8.500	%		476			499
Senior Notes due February 15, 2032		4.500	%		198			350
Other indebtedness					241			181
Debt issuance costs					(8	)		(16	)
					1,344			2,596
Less: Current portion of long-term debt					27			30
Long-term debt, less debt issuance costs				$	1,317		$	2,566

Interest on the senior notes is payable semi-annually. Other indebtedness includes borrowings from various financial institutions and finance lease obligations.

Senior notes activity — On April 15, 2025, Dana retired its remaining April 2025 Notes. On December 4, 2025, we offered as part of a net proceeds tender offer to purchase at a price equal to 100.00% plus accrued and unpaid interest up to $173 of our November 2027 Notes, up to $173 of our June 2028 Notes, up to €141 of our July 2029 Notes, up to $173 of our September 2030 Notes, up to €184 of our July 2031 Notes and up to $152 of our February 2032 Notes. The offers were conditioned on Dana receiving proceeds from the sale of its Off-Highway business and other customary conditions. In addition, on December 4, 2025, we issued notices of conditional full redemption with a redemption date of January 8, 2026 for all of our outstanding November 2027 Notes and June 2028 Notes at a redemption price equal to 100.00% plus accrued and unpaid interest. The redemptions were conditioned on Dana receiving proceeds from the sales of its Off-Highway business. On January 1, 2026, Dana completed the sale of its Off-Highway business. See Note 2 for additional information. On January 7, 2026, we purchased $138 of our November 2027 Notes, $142 of our June 2028 Notes, €141 of our July 2029 Notes ($164 as of January 7, 2026), $173 of our September 2030 Notes, €9 of our July 2031 Notes ($10 as of January 7, 2026) and $152 of our February 2032 Notes at prices equal to 100.00% plus accrued and unpaid interest. On January 8, 2026, we redeemed the remaining $262 of our November 2027 Notes and the remaining $258 of our June 2028 Notes at prices equal to 100.00% plus accrued and unpaid interest. During the first quarter of 2026, we recognized a $7 loss on extinguishment of debt comprised of the write-off of previously deferred financing costs associated with the redeemed senior notes.

Senior notes redemption provisions — We may redeem some or all of the senior notes at the following redemption prices (expressed as percentages of principal amount), plus accrued and unpaid interest to the redemption date, if redeemed during the 12-month period commencing on the anniversary date of the senior notes in the year set forth below:

	Redemption Price
	July			September			July			February
Year	2029 Notes			2030 Notes			2031 Notes			2032 Notes
2025		100.750	%
2026		100.000	%		102.125	%		104.250	%
2027		100.000	%		101.417	%		102.125	%		102.250	%
2028		100.000	%		100.708	%		100.000	%		101.500	%
2029					100.000	%		100.000	%		100.750	%
2030								100.000	%		100.000	%
2031											100.000	%

At any time prior to July 15, 2026, we may redeem up to 40% of the aggregate principal amount of the July 2031 Notes in an amount not to exceed the amount of proceeds of one or more equity offerings, at a price equal to 108.500% of the principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date, provided that at least 50% of the aggregate principal amount of the July 2031 Notes remain outstanding after the redemption. Prior to July 15, 2026, we may also redeem some or all of the July 2031 Notes at a redemption price equal to 100% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date plus a “make-whole” premium. We have not separated the make-whole premium from the underlying debt instrument to account for it as a derivative instrument as the economic characteristics and the risks of this embedded derivative are clearly and closely related to the economic characteristics and risks of the underlying debt.

Prior to February 15, 2027, we may redeem some or all of the February 2032 Notes at a redemption price equal to 100% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, to the redemption date plus a “make-whole” premium. We have not separated the make-whole premium from the underlying debt instrument to account for it as a derivative instrument as the economic characteristics and the risks of this embedded derivative are clearly and closely related to the economic characteristics and risks of the underlying debt.

Credit agreement — On July 31, 2025, we amended our credit and guaranty agreement to include a $250 Term A Facility. Borrowings under the Term A Facility bear interest at a floating rate based on Term Secured Overnight Financing Rate ("SOFR") (as described in the credit agreement) plus a margin. The Term A Facility matured at the earlier of five business days after the consummation of the Off-Highway business sale or July 30, 2026. We were required to make quarterly installments on the Term A Facility on the last day of each quarter commencing on December 31, 2025 in an amount equal to 10% of the original amount borrowed adjusted for any prepayments. On July 31, 2025, we fully drew the Term A Facility and used the proceeds to pay down outstanding borrowings on our Revolving Facility. On December 31, 2025, we made the required $25 payment on the Term A Facility. On January 1, 2026, Dana completed the sale of its Off-Highway business. See Note 2 for additional information. On January 2, 2026, we repaid the $225 outstanding balance on the Term A Facility.

Deferred financing costs on our Revolving Facility are included in other noncurrent assets and are being amortized over the life of the Revolving Facility. Each the Revolving Facility and Term A Facility is guaranteed by all of our wholly-owned domestic subsidiaries subject to certain exceptions (the guarantors) and is secured by a first-priority lien on substantially all of the assets of Dana and the guarantors, subject to certain exceptions.

Advances under the Revolving Facility bear interest at a floating rate based on, at our option, the base rate or the SOFR (each as described in the credit agreement) plus a margin as set forth below:

	Margin
Total Net Leverage Ratio	Base Rate			SOFR Rate
Less than or equal to 1.00:1.00		0.25	%		1.25	%
Greater than 1.00:1.00 but less than or equal to 2.00:1.00		0.50	%		1.50	%
Greater than 2.00:1.00		0.75	%		1.75	%

Commitment fees are applied based on the average daily unused portion of the available amounts under the Revolving Facility as set forth below:

Total Net Leverage Ratio	Commitment Fee
Less than or equal to 1.00:1.00		0.250	%
Greater than 1.00:1.00 but less than or equal to 2.00:1.00		0.375	%
Greater than 2.00:1.00		0.500	%

Up to $275 of the Revolving Facility may be applied to letters of credit, which reduces availability. We pay a fee for issued and undrawn letters of credit in an amount per annum equal to the applicable margin for SOFR rate advances based on a quarterly average availability under issued and undrawn letters of credit under the Revolving Facility and a per annum fronting fee of 0.125%, payable quarterly.

At June 30, 2026, there were no outstanding borrowings under the Revolving Facility and we had utilized $10 for letters of credit. We had availability at June 30, 2026 under the Revolving Facility of $1,140 after deducting outstanding letters of credit.

Debt covenants — At June 30, 2026, we were in compliance with the covenants of our financing agreements. Under the Revolving Facility and the senior notes, we are required to comply with certain incurrence-based covenants customary for facilities of these types and, in the case of the Revolving Facility, a maintenance covenant tested on the last day of each fiscal quarter requiring us to maintain a first lien net leverage ratio not to exceed 2.00 to 1.00.

Bridge facility — On June 10, 2026, we became a party to a $2,600 bridge facility (the Bridge Facility). The Bridge Facility serves as a backstop to certain contemplated financing transactions associated with Dana's intended acquisition of Eaton's Mobility business. See Note 1 for additional information. The Bridge Facility may be drawn upon only if the acquisition transaction closes. Availability under the Bridge Facility is subject to reduction to the extent contemplated financing transactions are completed prior to the acquisition transaction closing. We recorded initial deferred commitment fees of $17 related to the Bridge Facility. The deferred commitment fees are included in other current assets and are being amortized over the Bridge Facility's 15-month commitment period.

Subsequent events — On July 1, 2026, we issued notices of conditional full redemption with a redemption date of July 31, 2026, for all of our outstanding July 2031 Notes at a redemption price equal to 104.25% plus accrued and unpaid interest. On July 10, 2026, we amended our credit and guaranty agreement to include a $500 Term A Facility. Borrowings under the Term A Facility bear interest at a floating rate based on Term Secured Overnight Financing Rate (SOFR) (as described in the credit agreement) plus a margin. The Term A Facility matures 364 days from the date of the first draw on the Term A Facility. We are required to make quarterly installments on the Term A Facility on the last day of each quarter commencing on December 31, 2026 in an amount equal to 10% of the original amount borrowed adjusted for any prepayments. On July 28, 2026, we fully drew the Term A Facility. On July 31, 2026, we redeemed all of our outstanding July 2031 Notes.

On July 2, 2026, we became a party to a $350 secured term loan A (the Term Loan A) commitment and a $1,200 secured revolving credit facility (the Revolving Credit Facility) commitment. The Term Loan A commitment and the Revolving Credit Facility commitment are associated with Dana's intended acquisition of Eaton's Mobility business. No amounts are available to be drawn prior to the acquisition transaction closing.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Jun. 30, 2026	Jul. 17, 2026
Document Information [Line Items]
Entity Central Index Key	0000026780
Entity Registrant Name	Dana Incorporated
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2026
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2026
Document Transition Report	false
Entity File Number	1-1063
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-1531856
Entity Address, Address Line One	3939 Technology Drive
Entity Address, City or Town	Maumee
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43537
City Area Code	419
Local Phone Number	887-3000
Title of 12(b) Security	Common stock $0.01 par value
Trading Symbol	DAN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		107,576,679

Note 5 - Supplemental Balance Sheet and Cash Flow Information (Details Textual) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Jan. 20, 2026	Dec. 31, 2025	Jun. 30, 2026
Operating Lease, Right-of-Use Asset		$ 305	$ 166
Supplier Finance Program, Obligation, Current		59	54
Payments to Noncontrolling Interests			$ 190
Dana TM4 Inc., Dana TM4 Electric Holdings BV and Dana TM4 USA, LLC [Member]
Noncontrolling Interest, Change in Redemption Value		$ (190)
Payments to Noncontrolling Interests	$ 190
Dana TM4 Inc., Dana TM4 Electric Holdings BV and Dana TM4 USA, LLC [Member] \| Hydro-Québec [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner			45.00%
Operating Lease Modified as Finance Lease [Member]
Operating Lease, Right-of-Use Asset			$ 62
Operating Lease, Liability			57
Finance Lease, Right-of-Use Asset, after Accumulated Amortization			103
Finance Lease, Liability			$ 98

Note 13 - Warranty Obligations

6 Months Ended

Jun. 30, 2026

Product Warranty Disclosure [Text Block]

Note 13. Warranty Obligations

We record a liability for estimated warranty obligations at the dates our products are sold. We record the liability based on our estimate of costs to settle future claims. Adjustments to our estimated costs at time of sale are made as claim experience and other new information becomes available. Obligations for service campaigns and other occurrences are recognized as adjustments to prior estimates when the obligation is probable and can be reasonably estimated.

Changes in warranty liabilities —

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Balance, beginning of period	$	70		$	87		$	71		$	88
Amounts accrued for current period sales		13			9			23			18
Adjustments of prior estimates					3			3			5
Settlements of warranty claims		(17	)		(16	)		(31	)		(28	)
Currency impact					1						1
Balance, end of period	$	66		$	84		$	66		$	84

Note 17 - Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment EBITDA	$ 211	$ 159	$ 386	$ 268
Corporate expense and other items, net	(4)	(12)	(8)	(28)
Depreciation	(82)	(89)	(166)	(171)
Amortization	(2)	(3)	(5)	(6)
Non-service cost components of pension and OPEB costs	(3)	(2)	(4)	(4)
Restructuring charges, net	(9)	(11)	(15)	(13)
Stock compensation expense	(8)	(10)	(19)	(23)
Strategic transaction expenses	(19)	(5)	(20)	(6)
Gain on sale of property, plant and equipment				1
Supplier capacity charge adjustment				19
Amounts attributable to previously closed/divested operations	(1)		(1)
Distressed supplier costs	(2)		(2)
Loss on divestiture of ownership interests		(7)	(8)	(7)
Electric vehicle program termination charges	(8)		(64)
Foreign exchange gain on unhedged intercompany loans	2		23
Other items	1	(4)	(2)	(6)
Earnings from continuing operations before interest and income taxes	76	16	95	24
Gain (Loss) on Extinguishment of Debt			(7)
Interest income	4	3	10	5
Interest expense	21	44	43	83
Earnings (loss) from continuing operations before income taxes	$ 59	$ (25)	$ 55	$ (54)

Note 5 - Supplemental Balance Sheet and Cash Flow Information - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Cash and cash equivalents	$ 331	$ 469	$ 486	$ 494
Restricted cash included in other current assets	8	7	5	9
Restricted cash included in other noncurrent assets	10	10	10	9
Total cash, cash equivalents and restricted cash	$ 349	$ 486	$ 501	$ 512

Note 17 - Segments

6 Months Ended

Jun. 30, 2026

Segment Reporting [Text Block]

Note 17. Segments

We are a global provider of high-technology products to virtually every major on-highway vehicle manufacturer in the world. Our technologies include drive systems (axles, driveshafts and transmissions); electrodynamic technologies (motors, inverters, software and control systems, battery-management systems, and fuel cell plates); sealing solutions (gaskets, seals, cam covers, and oil pan modules); thermal-management technologies (transmission and engine oil cooling, battery and electronics cooling, charge air cooling, and thermal-acoustical protective shielding); and digital solutions (active and passive system controls and descriptive and predictive analytics). Effective January 1, 2025, Dana’s chief operating decision maker (CODM) realigned Dana’s operating segments, reflecting Dana’s commitment to streamlining the business, enhancing our go-to market approach, and serving our customers more efficiently. Our former Power Technologies operating segment has been split, integrating the OEM-facing business into our Light Vehicle Systems operating segment and integrating the aftermarket business into our Commercial Vehicle Systems operating segment. In addition, in June 2025 we entered into a definitive agreement to sell our Off-Highway business to Allison Transmission Holdings, Inc. See Note 2 for additional information. Certain operations that fell outside of the sale perimeter, including certain Dana TM4 operations and our European hydraulics business, have been integrated into our Commercial Vehicle Systems and Light Vehicle Systems operating segments, respectively. We now serve our global light vehicle and medium/heavy vehicle markets through two operating segments – Light Vehicle Systems (Light Vehicle) and Commercial Vehicle Systems (Commercial Vehicle). These operating segments have global responsibility and accountability for business commercial activities and financial performance. Amounts presented for prior periods have been recast to align with Dana’s current two operating segments. Dana’s Chief Executive Officer is its CODM.

Dana evaluates the performance of its operating segments based on external sales and segment EBITDA. Segment EBITDA is a primary driver of cash flows from operations and a measure of our ability to maintain and continue to invest in our operations and provide shareholder returns. Our segments are charged for corporate and other shared administrative costs. Certain corporate and other administrative costs that were historically charged to our Off-Highway business, that are not permitted to be reflected as part of discontinued operations, have been recast and are included within the "corporate expense and other items, net" line of the reconciliation of segment EBITDA to earnings (loss) from continuing operations before income taxes. Segment EBITDA may not be comparable to similarly titled measures reported by other companies.

Segment information —

	Light			Commercial
Three months ended June 30, 2026	Vehicle			Vehicle			Corporate			Total
External sales	$	1,379		$	631					$	2,010
Inter-segment sales		26			17						43
		1,405			648						2,053
Reconciliation of sales
Elimination of inter-segment sales											(43	)
Total consolidated sales										$	2,010
Less:
Cost of sales		1,215			538
Selling, general and administrative expenses		41			38
Other segment items (a)		(6	)		(4	)
Segment EBITDA	$	143		$	68					$	211

Purchases of property, plant and equipment	$	42		$	97		$	3		$	142
Segment net assets (b) - June 30, 2026	$	573		$	465		$	(72	)	$	966

	Light		Commercial
Three months ended June 30, 2025	Vehicle		Vehicle			Corporate			Total
External sales	$	1,335	$	600					$	1,935
Inter-segment sales		35		19						54
		1,370		619						1,989
Reconciliation of sales
Elimination of inter-segment sales										(54	)
Total consolidated sales									$	1,935
Less:
Cost of sales		1,218		536
Selling, general and administrative expenses		42		34
Other segment items (a)		2		(2	)
Segment EBITDA	$	112	$	47					$	159

Purchases of property, plant and equipment	$	30	$	4		$	3		$	37
Segment net assets (b) - December 31, 2025	$	465	$	471		$	(88	)	$	848

	Light			Commercial
Six months ended June 30, 2026	Vehicle			Vehicle			Corporate		Total
External sales	$	2,648		$	1,230				$	3,878
Inter-segment sales		52			32					84
		2,700			1,262					3,962
Reconciliation of sales
Elimination of inter-segment sales										(84	)
Total consolidated sales									$	3,878
Less:
Cost of sales		2,359			1,051
Selling, general and administrative expenses		79			74
Other segment items (a)		(7	)		(6	)
Segment EBITDA	$	255		$	131				$	386

Purchases of property, plant and equipment	$	89		$	108		$	7	$	204

	Light		Commercial
Six months ended June 30, 2025	Vehicle		Vehicle			Corporate		Total
External sales	$	2,548	$	1,168				$	3,716
Inter-segment sales		71		42					113
		2,619		1,210					3,829
Reconciliation of sales
Elimination of inter-segment sales									(113	)
Total consolidated sales								$	3,716
Less:
Cost of sales		2,356		1,052
Selling, general and administrative expenses		85		69
Other segment items (a)		2		(1	)
Segment EBITDA	$	180	$	88				$	268

Purchases of property, plant and equipment	$	79	$	16		$	9	$	104

(a) Other segment items primarily include foreign exchange gains and losses, government assistance and export incentives.

(b) Segment net assets include accounts receivable - trade, inventories and accounts payable.

Reconciliation of segment EBITDA to loss from continuing operations before income taxes —

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Segment EBITDA	$	211		$	159		$	386		$	268
Corporate expense and other items, net		(4	)		(12	)		(8	)		(28	)
Depreciation		(82	)		(89	)		(166	)		(171	)
Amortization		(2	)		(3	)		(5	)		(6	)
Non-service cost components of pension and OPEB costs		(3	)		(2	)		(4	)		(4	)
Restructuring charges, net		(9	)		(11	)		(15	)		(13	)
Stock compensation expense		(8	)		(10	)		(19	)		(23	)
Strategic transaction expenses		(19	)		(5	)		(20	)		(6	)
Gain on sale of property, plant and equipment											1
Supplier capacity charge adjustment											19
Amounts attributable to previously closed/divested operations		(1	)					(1	)
Distressed supplier costs		(2	)					(2	)
Loss on divestiture of ownership interests					(7	)		(8	)		(7	)
Electric vehicle program termination charges		(8	)					(64	)
Foreign exchange gain on unhedged intercompany loans		2						23
Other items		1			(4	)		(2	)		(6	)
Earnings from continuing operations before interest and income taxes		76			16			95			24
Loss on extinguishment of debt								(7	)
Interest income		4			3			10			5
Interest expense		21			44			43			83
Earnings (loss) from continuing operations before income taxes	$	59		$	(25	)	$	55		$	(54	)

Reconciliation of segment net assets to consolidated total assets —

	June 30,			December 31,
	2026		2025
Segment net assets	$	966	$	848
Accounts payable		1,301		1,154
Cash and cash equivalents		331		469
Accounts receivable - Other		286		254
Other current assets		285		114
Current assets of disposal group held for sale		36		1,029
Intangibles		58		71
Deferred tax assets		495		534
Other noncurrent assets		114		102
Investment in affiliates		112		102
Operating lease assets		166		305
Property, plant and equipment, net		1,942		1,872
Noncurrent assets of disposal group held for sale		21		954
Total assets	$	6,113	$	7,808

The entire disclosure for segment reporting.

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Note 1 - Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ / shares in Units, $ in Millions	Jun. 10, 2026	Jun. 30, 2026	Dec. 31, 2025
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.01	$ 0.01
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,200
Bridge Facility [Member]
Debt Instrument, Face Amount	2,600
Term Loan A [Member]
Debt Instrument, Face Amount	$ 350
SpinCo [Member] \| Former Eaton Shareholders [Member] \| Scenario, Plan [Member]
Subsidiary, Ownership Percentage, Parent	50.10%
SpinCo [Member] \| Former Dana Shareholders [Member] \| Scenario, Plan [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner	49.90%
SpinCo [Member]
Business Combination, Termination, Maximum Expense Reimbursement	$ 20
Business Combination, Termination Fee	$ 159
SpinCo [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 1
SpinCo [Member] \| Eaton Corporation plc [Member]
Business Combination, Percentage of Shares to be Issued Per Acquiree Share	100.00%
Business Combination, Price of Acquisition, Expected	$ 1,100

Note 3 - Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Amortizable intangible assets, accumulated impairment and amortization	$ (79)	$ (85)
Intangible Asset, Excluding Goodwill, before Accumulated Amortization	137	156
Intangible Asset, Excluding Goodwill, after Accumulated Amortization	58	71
Trademarks and Trade Names 1 [Member]
Trademarks and trade names	36	39
Trademarks and trade names	$ 36	39
Core Technology [Member]
Weighted average useful life (Year)	11 years
Amortizable intangible assets, gross carrying amount	$ 41	50
Amortizable intangible assets, accumulated impairment and amortization	(28)	(32)
Amortizable intangible assets, net carrying amount	$ 13	18
Customer Relationships [Member]
Weighted average useful life (Year)	11 years
Amortizable intangible assets, gross carrying amount	$ 60	67
Amortizable intangible assets, accumulated impairment and amortization	(51)	(53)
Amortizable intangible assets, net carrying amount	$ 9	$ 14

Note 14 - Income Taxes

6 Months Ended

Jun. 30, 2026

Income Tax Disclosure [Text Block]

Note 14. Income Taxes

We estimate the effective tax rate expected to be applicable for the full fiscal year and use that rate to provide for income taxes in interim reporting periods. We also recognize the tax impact of certain unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, in the interim period in which they occur.

We have generally not recognized tax benefits on losses generated in several entities where the recent history of operating losses does not allow us to satisfy the “more likely than not” criterion for the recognition of deferred tax assets. Consequently, there is no income tax expense or benefit recognized on the pre-tax income or losses in these jurisdictions as valuation allowances are adjusted to offset the associated tax expense or benefit.

We record interest and penalties related to uncertain tax positions as a component of income tax expense. Net interest expense for the periods presented herein is not significant.

We reported income tax expense of $54 and $10 for the second quarters of 2026 and 2025, respectively, and income tax expense of $68 and $0 for the respective year-to-date periods. Our effective tax rates were 124% and 0% for the six months ended June 30, 2026 and 2025. During the first six months of 2026, we recorded $12 of tax expense due to revisions in our assertions on unremitted earnings in foreign jurisdictions. During the first six months of 2025, we recorded a tax benefit of $19 due to a basis difference in a foreign subsidiary as a result of a change in tax status, $9 of tax expense for income tax reserves associated with prior tax years in foreign jurisdictions and tax expense of $6 resulting from the sale of Dana's ownership interest in an equity method investment. Our effective income tax rates vary from the U.S. federal statutory rate of 21% due to establishment, release, and adjustment of valuation allowances in several countries, nondeductible expenses and deemed income, local tax incentives in several countries outside the U.S., different statutory tax rates outside the U.S. and withholding taxes related to repatriations of international earnings. The effective income tax rate may vary significantly due to fluctuations in the amounts and sources, both foreign and domestic, of pretax income and changes in the amounts of non-deductible expenses.

On July 4, 2025, the One Big Beautiful Bill Act (OBBBA) was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the 2017 Tax Cuts and Jobs Act, modifications to the international tax framework, and the restoration of favorable tax treatment for certain business provisions. The legislation has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. The Company has evaluated the provisions of the Act and reflected the impact during the appropriate period. The Company will continue to evaluate the impact of these legislative changes as more guidance becomes available.

The entire disclosure for income tax.

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Note 6 - Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Stockholders Equity [Table Text Block]

2026	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Non-controlling Interests			Total Equity
Balance, December 31, 2025	$	1	$	1,671		$	235		$	(35	)	$	(1,032	)	$	59		$	899
Net income							1,087									4			1,091
Other comprehensive income													176						176
Common stock dividends and dividend equivalents							(14	)											(14	)
Common stock share repurchases				(126	)														(126	)
Distributions to noncontrolling interests																(1	)		(1	)
Sale of noncontrolling interests																(3	)		(3	)
Stock compensation				9															9
Stock withheld for employee taxes										(17	)								(17	)
Balance, March 31, 2026	$	1	$	1,554		$	1,308		$	(52	)	$	(856	)	$	59		$	2,014
Net income							(5	)								5			—
Other comprehensive income													19						19
Common stock dividends and dividend equivalents							(13	)											(13	)
Common stock share repurchases				(44	)														(44	)
Distributions to noncontrolling interests																(1	)		(1	)
Stock compensation				8															8
Balance, June 30, 2026	$	1	$	1,518		$	1,290		$	(52	)	$	(837	)	$	63		$	1,983

2025	Common Stock			Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Non-controlling Interests			Total Equity
Balance, December 31, 2024	$	2		$	2,282		$	204		$	(13	)	$	(1,142	)	$	63		$	1,396
Net income								25									5			30
Other comprehensive income														32						32
Common stock dividends and dividend equivalents								(15	)											(15	)
Distributions to noncontrolling interests																	(1	)		(1	)
Stock compensation					12															12
Stock withheld for employee taxes											(8	)								(8	)
Balance, March 31, 2025	$	2		$	2,294		$	214		$	(21	)	$	(1,110	)	$	67		$	1,446
Net income								27									4			31
Other comprehensive income														63			2			65
Common stock dividends and dividend equivalents								(15	)											(15	)
Distributions to noncontrolling interests																	(2	)		(2	)
Repurchase and retirement of shares		(1	)		(258	)														(259	)
Sale of noncontrolling interests																	(5	)		(5	)
Stock compensation					9															9
Balance, June 30, 2025	$	1		$	2,045		$	226		$	(21	)	$	(1,047	)	$	66		$	1,270

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Parent Company Stockholders
2026	Foreign Currency Translation			Hedging			Defined Benefit Plans			Accumulated Other Comprehensive Loss
Balance, December 31, 2025	$	(932	)	$	19		$	(119	)	$	(1,032	)
Currency translation adjustments		4									4
Currency translation adjustments realized in Off-Highway business divestiture		177									177
Holding gains and losses					12						12
Reclassification of amount to net income (a)					(17	)					(17	)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)								(1	)		(1	)
Tax benefit					1						1
Other comprehensive income (loss)		181			(4	)		(1	)		176
Balance, March 31, 2026	$	(751	)	$	15		$	(120	)	$	(856	)
Currency translation adjustments		21									21
Holding gains and losses					15						15
Reclassification of amount to net income (a)					(18	)					(18	)
Tax benefit					1						1
Other comprehensive income (loss)		21			(2	)		—			19
Balance, June 30, 2026	$	(730	)	$	13		$	(120	)	$	(837	)

	Parent Company Stockholders
2025	Foreign Currency Translation			Hedging			Defined Benefit Plans			Accumulated Other Comprehensive Loss
Balance, December 31, 2024	$	(977	)	$	(29	)	$	(136	)	$	(1,142	)
Currency translation adjustments		14									14
Holding gains and losses					(11	)					(11	)
Reclassification of amount to net income (a)					34						34
Tax expense					(5	)					(5	)
Other comprehensive income		14			18			—			32
Balance, March 31, 2025	$	(963	)	$	(11	)	$	(136	)	$	(1,110	)
Currency translation adjustments		39									39
Reclassification of amount to net income (a)					30						30
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)								1			1
Tax expense					(6	)		(1	)		(7	)
Other comprehensive income		39			24			—			63
Balance, June 30, 2025	$	(924	)	$	13		$	(136	)	$	(1,047	)

Note 6 - Stockholders' Equity

6 Months Ended

Jun. 30, 2026

Equity [Text Block]

Note 6. Stockholders’ Equity

Common stock — Our Board of Directors declared a cash dividend of twelve cents per share of common stock in the first and second quarters of 2026. Dividends accrue on restricted stock units (RSUs), performance share units (PSUs) and the Dana Transformation Awards granted under our stock compensation program and will be paid in cash or additional units when the underlying units vest.

Share repurchase program — On June 8, 2025 our Board of Directors approved a stock repurchase program of up to an aggregate of $1,000 less any amount of special dividends distributed in connection with the sale of the Off-Highway business. The program was set to expire on December 31, 2027. On February 11, 2026, our Board of Directors increased and extended the share repurchase program to a total of $2,000 through December 31, 2030. We repurchased 1,240,858 and 5,664,914 shares of our common stock at an aggregate cost of $44 and $169 during the three and six months ended June 30, 2026 through open market transactions. Approximately $1,181 remained available under the program for future share repurchases as of June 30, 2026.

The Inflation Reduction Act of 2022, which was enacted into law on August 16, 2022, imposed a non-deductible 1% excise tax on the net value of certain stock repurchases made after December 31, 2022. We reflect the applicable excise tax as part of the cost basis of the stock repurchased and record a corresponding liability for the excise taxes payable in other accrued liabilities on our consolidated balance sheet. During the second quarter of 2026, we paid $6 of excise taxes related to 2025 share repurchases. The payment is included in other, net within financing activities in the consolidated statement of cash flows. All dollar amounts presented in this report related to our share repurchases and our share repurchase authorization exclude such excise taxes, to the extent applicable, unless otherwise indicated.

Changes in equity —

2026	Common Stock		Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Non-controlling Interests			Total Equity
Balance, December 31, 2025	$	1	$	1,671		$	235		$	(35	)	$	(1,032	)	$	59		$	899
Net income							1,087									4			1,091
Other comprehensive income													176						176
Common stock dividends and dividend equivalents							(14	)											(14	)
Common stock share repurchases				(126	)														(126	)
Distributions to noncontrolling interests																(1	)		(1	)
Sale of noncontrolling interests																(3	)		(3	)
Stock compensation				9															9
Stock withheld for employee taxes										(17	)								(17	)
Balance, March 31, 2026	$	1	$	1,554		$	1,308		$	(52	)	$	(856	)	$	59		$	2,014
Net income							(5	)								5			—
Other comprehensive income													19						19
Common stock dividends and dividend equivalents							(13	)											(13	)
Common stock share repurchases				(44	)														(44	)
Distributions to noncontrolling interests																(1	)		(1	)
Stock compensation				8															8
Balance, June 30, 2026	$	1	$	1,518		$	1,290		$	(52	)	$	(837	)	$	63		$	1,983

2025	Common Stock			Additional Paid-In Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Loss			Non-controlling Interests			Total Equity
Balance, December 31, 2024	$	2		$	2,282		$	204		$	(13	)	$	(1,142	)	$	63		$	1,396
Net income								25									5			30
Other comprehensive income														32						32
Common stock dividends and dividend equivalents								(15	)											(15	)
Distributions to noncontrolling interests																	(1	)		(1	)
Stock compensation					12															12
Stock withheld for employee taxes											(8	)								(8	)
Balance, March 31, 2025	$	2		$	2,294		$	214		$	(21	)	$	(1,110	)	$	67		$	1,446
Net income								27									4			31
Other comprehensive income														63			2			65
Common stock dividends and dividend equivalents								(15	)											(15	)
Distributions to noncontrolling interests																	(2	)		(2	)
Repurchase and retirement of shares		(1	)		(258	)														(259	)
Sale of noncontrolling interests																	(5	)		(5	)
Stock compensation					9															9
Balance, June 30, 2025	$	1		$	2,045		$	226		$	(21	)	$	(1,047	)	$	66		$	1,270

Changes in each component of accumulated other comprehensive loss (AOCI) of the parent —

	Parent Company Stockholders
2026	Foreign Currency Translation			Hedging			Defined Benefit Plans			Accumulated Other Comprehensive Loss
Balance, December 31, 2025	$	(932	)	$	19		$	(119	)	$	(1,032	)
Currency translation adjustments		4									4
Currency translation adjustments realized in Off-Highway business divestiture		177									177
Holding gains and losses					12						12
Reclassification of amount to net income (a)					(17	)					(17	)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)								(1	)		(1	)
Tax benefit					1						1
Other comprehensive income (loss)		181			(4	)		(1	)		176
Balance, March 31, 2026	$	(751	)	$	15		$	(120	)	$	(856	)
Currency translation adjustments		21									21
Holding gains and losses					15						15
Reclassification of amount to net income (a)					(18	)					(18	)
Tax benefit					1						1
Other comprehensive income (loss)		21			(2	)		—			19
Balance, June 30, 2026	$	(730	)	$	13		$	(120	)	$	(837	)

	Parent Company Stockholders
2025	Foreign Currency Translation			Hedging			Defined Benefit Plans			Accumulated Other Comprehensive Loss
Balance, December 31, 2024	$	(977	)	$	(29	)	$	(136	)	$	(1,142	)
Currency translation adjustments		14									14
Holding gains and losses					(11	)					(11	)
Reclassification of amount to net income (a)					34						34
Tax expense					(5	)					(5	)
Other comprehensive income		14			18			—			32
Balance, March 31, 2025	$	(963	)	$	(11	)	$	(136	)	$	(1,110	)
Currency translation adjustments		39									39
Reclassification of amount to net income (a)					30						30
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)								1			1
Tax expense					(6	)		(1	)		(7	)
Other comprehensive income		39			24			—			63
Balance, June 30, 2025	$	(924	)	$	13		$	(136	)	$	(1,047	)

(a) Realized gains and losses from currency-related forward contracts associated with forecasted transactions or from other derivative instruments treated as cash flow hedges are reclassified from AOCI into the same line item in the consolidated statement of operations in which the underlying forecasted transaction or other hedged item is recorded. See Note 11 for additional details.

(b) See Note 9 for additional details.

The entire disclosure for equity.

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Note 11 - Fair Value Measurements and Derivatives - Fair Value Measurements on a Recurring Basis (Details) - Fair Value, Recurring [Member] - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Derivative assets	$ 8	$ 4
Derivative liabilities	3	7
Currency Swap [Member] \| Not Designated as Hedging Instrument [Member]
Derivative liabilities		2
Cash Flow Hedging [Member] \| Foreign Exchange Forward [Member]
Derivative assets	18	21
Derivative liabilities	1	1
Cash Flow Hedging [Member] \| Currency Swap [Member]
Derivative liabilities	$ 17	$ 25

Note 17 - Segments - Reconciliation of Segment Net Assets to Consolidated Total Assets (Details) - USD ($)
$ in Millions

Jun. 30, 2026

Dec. 31, 2025

Jun. 30, 2025

Dec. 31, 2024

Cash and cash equivalents

$ 966

^[1]

$ 848

^[1]

Accounts payable

1,301

1,154

331

469

$ 486

$ 494

Accounts receivable - Other

286

254

Other current assets

285

114

Current assets of disposal group held for sale

1,029

Intangibles

Deferred tax assets

495

534

Other noncurrent assets

114

102

Investment in affiliates

112

102

Operating lease assets

166

305

Property, plant and equipment, net

1,942

1,872

Noncurrent assets of disposal group held for sale

954

Total assets

$ 6,113

$ 7,808

[1]	Segment net assets include accounts receivable - trade, inventories and accounts payable.

Note 6 - Stockholders' Equity - Changes In Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025
Balance	$ 2,014	$ 899	$ 1,446	$ 1,396
Net income	0	1,091	31	30
Other comprehensive income	19	176	65	32
Common stock dividends and dividend equivalents	(13)	(14)	(15)	(15)
Common stock share repurchases	(44)	(126)
Distributions to noncontrolling interests	(1)	(1)	(2)	(1)
Sale of noncontrolling interests		(3)	(5)
Stock compensation	8	9	9	12
Stock withheld for employee taxes		(17)		(8)
Repurchase and retirement of shares			(259)
Balance	1,983	2,014	1,270	1,446
Common Stock [Member]
Balance	1	1	2	2
Repurchase and retirement of shares			(1)
Balance	1	1	1	2
Additional Paid-in Capital [Member]
Balance	1,554	1,671	2,294	2,282
Common stock share repurchases	(44)	(126)
Stock compensation	8	9	9	12
Repurchase and retirement of shares			(258)
Balance	1,518	1,554	2,045	2,294
Retained Earnings [Member]
Balance	1,308	235	214	204
Net income	(5)	1,087	27	25
Common stock dividends and dividend equivalents	(13)	(14)	(15)	(15)
Balance	1,290	1,308	226	214
Treasury Stock, Common [Member]
Balance	(52)	(35)	(21)	(13)
Stock withheld for employee taxes		(17)		(8)
Balance	(52)	(52)	(21)	(21)
AOCI Attributable to Parent [Member]
Balance	(856)	(1,032)	(1,110)	(1,142)
Other comprehensive income	19	176	63	32
Balance	(837)	(856)	(1,047)	(1,110)
Noncontrolling Interest [Member]
Balance	59	59	67	63
Net income	5	4	4	5
Other comprehensive income			2
Distributions to noncontrolling interests	(1)	(1)	(2)	(1)
Sale of noncontrolling interests		(3)	(5)
Balance	$ 63	$ 59	$ 66	$ 67

Note 11 - Fair Value Measurements and Derivatives - Outstanding Fixed-to-fixed Cross-currency Swaps (Details) - Currency Swap [Member] € in Millions, $ in Millions	Jun. 30, 2026 USD ($)	Jun. 30, 2026 EUR (€)	Dec. 31, 2025 USD ($)
Notional amount \| $	$ 318		$ 712
Luxembourg Intercompany Notes [Member] \| Cash Flow Hedging [Member]
Face amount \| €		€ 278
Rate	3.70%	3.70%
Notional amount	$ 300	€ 278
Inflow rate	5.38%	5.38%
Outflow rate	3.70%	3.70%

Note 7 - Earnings Per Share (Details Textual) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-Based Payment Arrangement [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0.3	0.3	0.2	0.2
Potentially Dilutive Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		1.7	1.3	1.5

Note 7 - Earnings Per Share - Reconciliation of the Numerators and Denominators of the Earnings Per Share Calculations (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net income (loss) from continuing operations	$ 11	$ (12)	$ (4)	$ (29)
Less: Noncontrolling interests net income from continuing operations	5	4	9	9
Net income (loss) from continuing operations attributable to the parent company	6	(16)	(13)	(38)
Net income (loss from discontinued operations	(11)	43	1,095	90
Net income attributable to the parent company	$ (5)	$ 27	$ 1,082	$ 52
Weighted-average common shares outstanding - Basic (in shares)	108.1	143.8	109.0	144.7
Employee compensation-related shares (in shares)	1.4	0.0	0.0	0.0
Weighted-average common shares outstanding - Diluted (in shares)	109.5	143.8	109.0	144.7

Amount after tax of income (loss) from continuing operations attributable to the parent.

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Consolidated Statement of Operations (Unaudited) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net sales	$ 2,010,000	$ 1,935,000	$ 3,878,000	$ 3,716,000
Costs and expenses
Cost of sales	1,800,000	1,797,000	3,499,000	3,460,000
Selling, general and administrative expenses	104,000	99,000	206,000	204,000
Charged to amortization of intangibles	1,000	2,000	3,000	4,000
Restructuring charges, net	9,000	11,000	15,000	13,000
Other income (expense), net	(20,000)	(10,000)	(60,000)	(11,000)
Earnings from continuing operations before interest and income taxes	76,000	16,000	95,000	24,000
Loss on extinguishment of debt			(7,000)
Interest income	4,000	3,000	10,000	5,000
Interest expense	21,000	44,000	43,000	83,000
Earnings (loss) from continuing operations before income taxes	59,000	(25,000)	55,000	(54,000)
Income tax expense	54,000	10,000	68,000	0
Equity in earnings of affiliates	6,000	23,000	9,000	25,000
Net income (loss) from continuing operations	11,000	(12,000)	(4,000)	(29,000)
Net income (loss) from discontinued operations	(11,000)	43,000	1,095,000	90,000
Net income (loss)	0	31,000	1,091,000	61,000
Less: Noncontrolling interests net income from continuing operations	5,000	4,000	9,000	9,000
Net income attributable to the parent company	$ (5,000)	$ 27,000	$ 1,082,000	$ 52,000
Net income (loss) per share available to common stockholders
Basic earnings (loss) per share from continuing operations (in dollars per share)	$ 0.06	$ (0.11)	$ (0.12)	$ (0.26)
Basic earnings (loss) per share from discontinued operations (in dollars per share)	(0.11)	0.3	10.05	0.62
Basic earnings per share (in dollars per share)	(0.05)	0.19	9.93	0.36
Diluted earnings (loss) per share from continuing operations (in dollars per share)	0.05	(0.11)	(0.12)	(0.26)
Diluted earnings (loss) per share from discontinued operations (in dollars per share)	(0.1)	0.3	10.05	0.62
Diluted earnings per share (in dollars per share)	$ (0.05)	$ 0.19	$ 9.93	$ 0.36
Weighted-average common shares outstanding
Basic (in shares)	108.1	143.8	109.0	144.7
Diluted (in shares)	109.5	143.8	109.0	144.7

Note 9 - Pension and Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Credit) and Other Amounts Recognized in OCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Other Postretirement Benefits Plan [Member]
Interest cost	$ 1	$ 0	$ 1	$ 1
Amortization of net actuarial loss (gain)		(1)	(1)	(2)
Net periodic benefit cost (credit)	1	(1)	0	(1)
UNITED STATES \| Pension Plan [Member]
Interest cost	4	5	8	10
Expected return on plan assets	(6)	(5)	(11)	(11)
Amortization of net actuarial loss (gain)	1	1	2	2
Net periodic benefit cost (credit)	(1)	1	(1)	1
Foreign Plan [Member] \| Pension Plan [Member]
Interest cost	3	3	6	5
Expected return on plan assets		(1)	(1)	(1)
Service cost	1	1	2	2
Net periodic benefit cost (credit)	$ 4	$ 3	$ 7	$ 6

Note 11 - Fair Value Measurements and Derivatives - Summary of Deferred Gains (Losses) Reported in AOCI (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Deferred gain (loss) in AOCI	$ 14	$ 22
Gain (loss) expected to be reclassified into income in one year or less	14
Foreign Exchange Forward [Member]
Deferred gain (loss) in AOCI	14	20
Gain (loss) expected to be reclassified into income in one year or less	14
Currency Swap [Member]
Deferred gain (loss) in AOCI		$ 2

Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Current assets
Cash and cash equivalents	$ 331	$ 469
Accounts receivable
Trade, less allowance for doubtful accounts of $12 in 2026 and $15 in 2025	1,287	987
Other	286	254
Inventories	980	1,015
Other current assets	285	114
Current assets of disposal group held for sale	36	1,029
Total current assets	3,205	3,868
Intangibles	58	71
Deferred tax assets	495	534
Other noncurrent assets	114	102
Investments in affiliates	112	102
Operating lease assets	166	305
Property, plant and equipment, net	1,942	1,872
Noncurrent assets of disposal group held for sale	21	954
Total assets	6,113	7,808
Current liabilities
Short-term debt	0	615
Current portion of long-term debt	27	30
Accounts payable	1,301	1,154
Accrued payroll and employee benefits	170	210
Taxes on income	78	75
Current portion of operating lease liabilities	34	41
Other accrued liabilities	532	495
Current liabilities of disposal group held for sale	14	688
Total current liabilities	2,156	3,308
Long-term debt, less debt issuance costs of $8 in 2026 and $16 in 2025	1,317	2,566
Noncurrent operating lease liabilities	125	266
Pension and postretirement obligations	241	249
Other noncurrent liabilities	291	337
Noncurrent liabilities of disposal group held for sale		183
Total liabilities	4,130	6,909
Commitments and contingencies (Note 12)
Parent company stockholders' equity
Preferred stock, 50,000,000 shares authorized, $0.01 par value, no shares outstanding	0	0
Common stock, 450,000,000 shares authorized, $0.01 par value, 107,576,158 and 112,284,138 shares outstanding	1	1
Additional paid-in capital	1,518	1,671
Retained earnings	1,290	235
Treasury stock, at cost (2,508,917 and 1,944,700 shares)	(52)	(35)
Accumulated other comprehensive loss	(837)	(1,032)
Total parent company stockholders' equity	1,920	840
Noncontrolling interests	63	59
Total equity	1,983	899
Total liabilities and equity	$ 6,113	$ 7,808

Note 9 - Pension and Postretirement Benefit Plans

6 Months Ended

Jun. 30, 2026

Retirement Benefits [Text Block]

Note 9. Pension and Postretirement Benefit Plans

We have a number of defined contribution and defined benefit, qualified and nonqualified, pension plans covering eligible employees. Other postretirement benefits (OPEB), including medical and life insurance, are provided for certain employees upon retirement.

Components of net periodic benefit cost —

	Pension												OPEB
	2026						2025						2026			2025
Three Months Ended June 30,	U.S.			Non-U.S.			U.S.			Non-U.S.			Non-U.S.			Non-U.S.
Interest cost	$	4		$	3		$	5		$	3		$	1		$	—
Expected return on plan assets		(6	)					(5	)		(1	)
Service cost					1						1
Amortization of net actuarial loss (gain)		1						1									(1	)
Net periodic benefit cost (credit)	$	(1	)	$	4		$	1		$	3		$	1		$	(1	)

Six Months Ended June 30,
Interest cost	$	8		$	6		$	10		$	5		$	1		$	1
Expected return on plan assets		(11	)		(1	)		(11	)		(1	)
Service cost					2						2
Amortization of net actuarial loss (gain)		2						2						(1	)		(2	)
Net periodic benefit cost (credit)	$	(1	)	$	7		$	1		$	6		$	—		$	(1	)

The service cost components of net periodic pension and OPEB costs are included in cost of sales and selling, general and administrative expenses as part of compensation cost and are eligible for capitalization in inventory and other assets. The non-service components are reported in other income (expense), net and are not eligible for capitalization.

The entire disclosure for retirement benefits.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 14 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Tax Expense (Benefit)	$ 54,000	$ 10,000	$ 68,000	$ 0
Effective Income Tax Rate Reconciliation, Percent			124.00%	0.00%
Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount				$ 6,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Income Tax Jurisdiction, Foreign [Member]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			$ 12,000
Income Tax Rate Reconciliation, Change in Tax Status				(19,000)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount				$ 9,000

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Subparagraph (ee)
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Note 17 - Segments (Details Textual)	6 Months Ended
Note 17 - Segments (Details Textual)	Jun. 30, 2026
Number of Operating Segments	2
Number of Reportable Segments	2

Note 7 - Earnings Per Share

6 Months Ended

Jun. 30, 2026

Earnings Per Share [Text Block]

Note 7. Earnings per Share

Reconciliation of the numerators and denominators of the earnings per share calculations —

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Net income (loss) from continuing operations	$	11		$	(12	)	$	(4	)	$	(29	)
Less: Noncontrolling interests net income from continuing operations		5			4			9			9
Net income (loss) from continuing operations attributable to the parent company		6			(16	)		(13	)		(38	)
Net income (loss from discontinued operations		(11	)		43			1,095			90
Net income attributable to the parent company	$	(5	)	$	27		$	1,082		$	52

Denominator:
Weighted-average common shares outstanding - Basic		108.1			143.8			109.0			144.7
Employee compensation-related shares		1.4			—			—			—
Weighted-average common shares outstanding - Diluted		109.5			143.8			109.0			144.7

The share count for diluted earnings per share is computed on the basis of the weighted-average number of common shares outstanding plus the effects of dilutive common stock equivalents (CSEs) outstanding during the period. We excluded 0.3 million CSEs from the calculation of diluted earnings per share for both the second quarter of 2026 and 2025 and excluded and 0.2 million of CSEs for both the respective year-to-date periods as the effect of including them would have been anti-dilutive. In addition, we excluded CSEs that satisfied the definition of potentially dilutive shares of 1.7 million for the second quarter of 2025 and excluded 1.3 million and 1.5 million for the 2026 and 2025 year-to-date periods as a result of the loss from continuing operations for these periods.

Note 16 - Revenue From Contracts With Customers

6 Months Ended

Jun. 30, 2026

Revenue from Contract with Customer [Text Block]

Note 16. Revenue from Contracts with Customers

We generate revenue from selling production parts to original equipment manufacturers (OEMs) and service parts to OEMs and aftermarket customers. While we provide production and service parts to certain OEMs under awarded multi-year programs, these multi-year programs do not contain any commitment to volume by the customer. As such, individual customer releases or purchase orders represent the contract with the customer. Our customer contracts do not provide us with an enforceable right to payment for performance completed to date throughout the contract term. As such, we recognize part sales revenue at the point in time when the parts are shipped, and risk of loss has transferred to the customer. We have elected to continue to include shipping and handling fees billed to customers in revenue, while including costs of shipping and handling in costs of sales. Taxes collected from customers are excluded from revenues and credited directly to obligations to the appropriate government agencies. Payment terms with our customers are established based on industry and regional practices and generally do not exceed 180 days.

We continually seek new business opportunities and at times provide incentives to our customers for new program awards. We evaluate the underlying economics of each payment made to our customers to determine the proper accounting by understanding the nature of the payment, the rights and obligations in the contract, and other relevant facts and circumstances. Upfront payments to our customers are capitalized if we determine that the payments are incremental and incurred only if the new business is obtained and we expect to recover these amounts from the customer over the term of the new business program. We recognize a reduction to revenue as products that the upfront payments are related to are transferred to the customer, based on the total amount of products expected to be sold over the term of the program. We evaluate the amounts capitalized each period for recoverability and expense any amounts that are no longer expected to be recovered. We had $5 and $6 recorded in other current assets and $9 and $15 recorded in other noncurrent assets at June 30, 2026 and December 31, 2025.

Certain of our customer contracts include rebate incentives. We estimate expected rebates and accrue the corresponding refund liability, as a reduction of revenue, at the time covered product is sold to the customer based on anticipated customer purchases during the rebate period and contractual rebate percentages. Refund liabilities are included in other accrued liabilities on our consolidated balance sheets. We provide standard fitness for use warranties on the products we sell, accruing for estimated costs related to product warranty obligations at time of sale. See Note 13 for additional information.

Contract liabilities are primarily comprised of cash deposits made by customers with cash in advance payment terms, upfront payments from customers related to multi-year programs and unapplied Section 232 tariff credits allocated to Dana by its U.S. OEM customers. We had $167 and $25 recorded in other accrued liabilities and $54 and $59 recorded in other noncurrent liabilities at June 30, 2026 and December 31, 2025. We had $135 recorded in other current assets at June 30, 2026, which represents consideration received from our U.S. OEM customers for the unapplied Section 232 tariff credits.

Disaggregation of revenue —

The following table disaggregates revenue for each of our operating segments by geographical market:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
Light Vehicle
North America	$	957	$	928	$	1,820	$	1,745
Europe		213		192		415		373
South America		65		58		109		105
Asia Pacific		144		157		304		325
Total	$	1,379	$	1,335	$	2,648	$	2,548

Commercial Vehicle
North America	$	245	$	229	$	466	$	460
Europe		198		194		404		374
South America		134		125		251		233
Asia Pacific		54		52		109		101
Total	$	631	$	600	$	1,230	$	1,168

Total
North America	$	1,202	$	1,157	$	2,286	$	2,205
Europe		411		386		819		747
South America		199		183		360		338
Asia Pacific		198		209		413		426
Total	$	2,010	$	1,935	$	3,878	$	3,716

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Note 10 - Financing Agreements - Debt Instrument Redemption (Details)	6 Months Ended
	Jun. 30, 2026
Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period One [Member] \| Senior Notes Due July 15, 2029 [Member]
Debt Instrument, Redemption Price, Percentage	100.75%
Debt Instrument, Redemption, Period Two [Member] \| Senior Notes Due July 15, 2029 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Two [Member] \| Senior Notes Due September 1, 2030 [Member]
Debt Instrument, Redemption Price, Percentage	102.125%
Debt Instrument, Redemption, Period Two [Member] \| Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	104.25%
Debt Instrument, Redemption, Period Three [Member] \| Senior Notes Due July 15, 2029 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Three [Member] \| Senior Notes Due September 1, 2030 [Member]
Debt Instrument, Redemption Price, Percentage	101.417%
Debt Instrument, Redemption, Period Three [Member] \| Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	102.125%
Debt Instrument, Redemption, Period Three [Member] \| Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	102.25%
Debt Instrument, Redemption, Period Four [Member] \| Senior Notes Due July 15, 2029 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Four [Member] \| Senior Notes Due September 1, 2030 [Member]
Debt Instrument, Redemption Price, Percentage	100.708%
Debt Instrument, Redemption, Period Four [Member] \| Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Four [Member] \| Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	101.50%
Debt Instrument, Redemption, Period Five [Member] \| Senior Notes Due September 1, 2030 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Five [Member] \| Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Five [Member] \| Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	100.75%
Debt Instrument, Redemption, Period Six [Member] \| Senior Notes Due July 15, 2031 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Six [Member] \| Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Redemption, Period Seven [Member] \| Senior Notes due February 15, 2032 [Member]
Debt Instrument, Redemption Price, Percentage	100.00%

Note 15 - Other Income (Expense), Net (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Non-service cost components of pension and OPEB costs	$	(3	)	$	(2	)	$	(4	)	$	(4	)
Government assistance		1			2			1			4
Foreign exchange gain (loss)		(6	)		(1	)		11			(6	)
Strategic transaction expenses		(19	)		(5	)		(20	)		(6	)
Gain on sale of property, plant and equipment											1
Electric vehicle program termination charges		(3	)					(59	)
Loss on divestiture of ownership interests					(7	)		(8	)		(7	)
Transition services income		8						18
Other, net		2			3			1			7
Other income (expense), net	$	(20	)	$	(10	)	$	(60	)	$	(11	)

Note 9 - Pension and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Net Benefit Costs [Table Text Block]

	Pension												OPEB
	2026						2025						2026			2025
Three Months Ended June 30,	U.S.			Non-U.S.			U.S.			Non-U.S.			Non-U.S.			Non-U.S.
Interest cost	$	4		$	3		$	5		$	3		$	1		$	—
Expected return on plan assets		(6	)					(5	)		(1	)
Service cost					1						1
Amortization of net actuarial loss (gain)		1						1									(1	)
Net periodic benefit cost (credit)	$	(1	)	$	4		$	1		$	3		$	1		$	(1	)

Six Months Ended June 30,
Interest cost	$	8		$	6		$	10		$	5		$	1		$	1
Expected return on plan assets		(11	)		(1	)		(11	)		(1	)
Service cost					2						2
Amortization of net actuarial loss (gain)		2						2						(1	)		(2	)
Net periodic benefit cost (credit)	$	(1	)	$	7		$	1		$	6		$	—		$	(1	)

Note 15 - Other Income (Expense), Net (Details Textual) - USD ($) $ in Millions				3 Months Ended		6 Months Ended
	Jan. 30, 2026	Jan. 01, 2026	Jun. 06, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring Charges				$ 9	$ 11	$ 15	$ 13
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	$ (8)		$ (8)			(8)	$ (7)
Allison Transmission Holdings, Inc. [Member] \| Discontinued Operations, Disposed of by Sale [Member] \| Off-highway Business [Member]
Transition Services Agreement, Period (Month)		24 months
Electric Vehicle Programs [Member]
Restructuring Charges						$ 59

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Less: Current portion of long-term debt

Note 10 - Financing Agreements - Long-term Debt (Details) - USD ($)
$ in Millions

Jun. 30, 2026

Dec. 31, 2025

Debt issuance costs

$ (8)

$ (16)

Long-term debt

1,344

2,596

Long-term debt, less debt issuance costs

$ 1,317

2,566

Senior Notes Due April 15, 2025 [Member]

^[1]

5.375%

Senior Notes due November 15, 2027 [Member]

$ 0

400

5.625%

Senior Notes Due July 15, 2029 [Member]

400

3.00%

Senior Notes due June 15, 2028 [Member]

$ 210

382

4.25%

Senior Notes Due July 15, 2031 [Member]

$ 227

400

8.50%

Senior Notes due February 15, 2032 [Member]

$ 476

499

4.50%

Other Indebtedness [Member]

$ 198

350

$ 241

$ 181

[1]	In conjunction with the issuance of the April 2025 Notes, we entered into 8-year fixed-to-fixed cross-currency swaps which had the effect of economically converting the April 2025 Notes to euro-denominated debt at a fixed rate of 3.850%. See Note 13 for additional information.

Note 17 - Segments - Segment Information (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Jun. 30, 2026

Jun. 30, 2025

Jun. 30, 2026

Jun. 30, 2025

Dec. 31, 2025

Selling, general and administrative expenses

$ 2,010

$ 1,935

$ 3,878

$ 3,716

Cost of sales

1,800

1,797

3,499

3,460

104

206

204

Segment EBITDA

211

159

386

268

142

204

104

Operating Segments [Member]

966

^[1]

848

^[1]

966

^[1]

848

^[1]

$ 848

Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]

2,010

1,935

3,878

3,716

Eliminations and Reconciling Items [Member]

113

Intersegment Eliminations [Member]

2,053

1,989

3,962

3,829

Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]

(43)

(54)

(84)

(113)

Light Vehicle Segment [Member]

^[1]

(72)

(88)

(72)

(88)

Light Vehicle Segment [Member] | Operating Segments [Member]

1,379

1,335

2,648

2,548

Selling, general and administrative expenses

1,379

1,335

2,648

2,548

Cost of sales

1,215

1,218

2,359

2,356

Other segment items

^[2]

(6)

(7)

Segment EBITDA

143

112

255

180

Light Vehicle Segment [Member] | Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]

^[1]

573

465

573

465

Light Vehicle Segment [Member] | Eliminations and Reconciling Items [Member]

Commercial Vehicle Segment [Member]

1,405

1,370

2,700

2,619

Commercial Vehicle Segment [Member] | Operating Segments [Member]

631

600

1,230

1,168

Selling, general and administrative expenses

631

600

1,230

1,168

Cost of sales

538

536

1,051

1,052

Other segment items

^[2]

(4)

(2)

(6)

(1)

Segment EBITDA

131

108

Commercial Vehicle Segment [Member] | Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]

^[1]

465

471

465

471

Commercial Vehicle Segment [Member] | Eliminations and Reconciling Items [Member]

$ 648

$ 619

$ 1,262

$ 1,210

[1]	Segment net assets include accounts receivable - trade, inventories and accounts payable.
[2]	Other segment items primarily include foreign exchange gains and losses, government assistance and export incentives.

Note 5 - Supplemental Balance Sheet and Cash Flow Information

6 Months Ended

Jun. 30, 2026

Additional Financial Information Disclosure [Text Block]

Note 5. Supplemental Balance Sheet and Cash Flow Information

Non-cash investing and financing activities —During the second quarter of 2026, the Company modified an operating lease, resulting in a reassessment and reclassification of the lease as a finance lease. At the modification date, the carrying amounts of the operating lease right-of-use asset and lease liability were $62 million and $57 million, respectively. Following remeasurement, the Company recognized a finance lease right-of-use asset of $103 million and a finance lease liability of $98 million. The modification was a non-cash transaction and therefore is excluded from the consolidated statements of cash flows.

Supplier finance programs — As of June 30, 2026 and December 31, 2025, we had $54 and $59, respectively, of confirmed obligations subject to supplier finance programs presented as accounts payable within total current liabilities on the consolidated balance sheet.

Inventory components —

	June 30, 2026		December 31, 2025
Raw materials	$	456	$	458
Work in process and finished goods		524		557
Total	$	980	$	1,015

Cash, cash equivalents and restricted cash —

	June 30, 2026		December 31, 2025		June 30, 2025		December 31, 2024
Cash and cash equivalents	$	331	$	469	$	486	$	494
Restricted cash included in other current assets		8		7		5		9
Restricted cash included in other noncurrent assets		10		10		10		9
Total cash, cash equivalents and restricted cash	$	349	$	486	$	501	$	512

Mandatorily redeemable noncontrolling interest — Hydro-Québec owned a 45% redeemable noncontrolling interest in Dana TM4 Inc., Dana TM4 Electric Holdings BV and Dana TM4 USA, LLC. The terms of the joint venture agreement provided Hydro-Québec with the right to put all, and not less than all, of its ownership interests in Dana TM4 Inc., Dana TM4 Electric Holdings BV and Dana TM4 USA, LLC to Dana at fair value. On May 6, 2024, Hydro‑Québec delivered its put notice to Dana. Following this notice, Dana ceased attributing net income (loss) and other comprehensive income (loss) of Dana TM4 Inc., Dana TM4 Electric Holdings BV, and Dana TM4 USA, LLC to Hydro‑Québec’s redeemable noncontrolling interest. During the fourth quarter of 2025, we finalized the purchase price with Hydro‑Québec resulting in the redeemable noncontrolling interest becoming mandatorily redeemable and reclassified the $190 redemption value to other current liabilities. On January 20, 2026, the transaction was completed and we paid Hydro-Québec the full purchase price of $190.

Note 1 - Organization and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Note 1. Organization and Summary of Significant Accounting Policies

General

Dana Incorporated (Dana) is headquartered in Maumee, Ohio and was incorporated in Delaware in 2007. Dana is a global provider of high technology driveline (axles, driveshafts and transmissions); sealing and thermal-management products; and motors, power inverters, and control systems for electric vehicles with a customer base that includes virtually every major on-highway vehicle manufacturer in the world.

The terms "Dana," "we," "our" and "us," when used in this report, are references to Dana. These references include the subsidiaries of Dana unless otherwise indicated or the context requires otherwise.

Summary of significant accounting policies

Basis of presentation — Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information. These statements are unaudited, but in the opinion of management include all adjustments (consisting only of normal recurring adjustments) necessary for a fair statement of the results for the interim periods. The results reported in these consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. The financial information included herein should be read in conjunction with the consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2025 (the 2025 Form 10-K). Certain prior year amounts have been reclassified to conform to the current presentation.

On January 1, 2026, we completed the previously announced sale of our Off-Highway business to Allison Transmission Holdings, Inc. The sale was consummated pursuant to the terms and conditions of the definitive agreement to sell that we entered in June 2025. A component of an entity is reported in discontinued operations after meeting the criteria for held for sale classification if the disposition represents a strategic shift that has, or will have, a major effect on the entity’s operations and financial results. We analyzed the quantitative and qualitative factors relevant to the divestiture of our Off-Highway business and determined that the conditions for discontinued operations presentation have been met. As such, the financial position, results of operations and cash flows of that business are reported as discontinued operations in the accompanying consolidated financial statements. Prior period amounts have been recast to reflect discontinued operations presentation. See Note 2 for additional information.

Recently adopted accounting pronouncements

In July 2025, the FASB issued ASU 2025-05, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which introduces a practical expedient that allows entities to assume conditions existing at the balance-sheet date will remain constant over the remaining life of current accounts receivable and contract assets arising from revenue transactions. We adopted this ASU effective January 1, 2026 and elected to utilize the practical expedient. The adoption of this amendment did not have a material impact on our consolidated financial statements.

Recently issued accounting pronouncements

In December 2025, the Financial Accounting Standards Board (FASB) issued ASU 2025-10, Government Grants (Topic 832), which addresses the recognition, measurement, presentation and disclosure of government grants, including grants related to income and grants related to assets. The new guidance leverages the principles in the accounting framework for government assistance in IFRS, specifically IAS 20, with certain targeted improvements. This ASU requires entities to recognize government grants only when it is probable that the entity will meet the stipulated grant conditions and ultimately receive the grant funds. This ASU provides two acceptable methods for accounting for grants related to assets: the grant may be initially recognized as deferred income, or it may be recorded as an adjustment to reduce the cost basis of the related asset. For grants related to income, the standard mandates that these shall be consistently recognized as deferred income. Deferred grants should be recognized in earnings on a systematic and rational basis either under a general heading such as other income or deducted from the related expense. The guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods; early adoption is permitted. We do not expect this guidance to have a material impact on our consolidated financial statements and related disclosures.

In November 2025, the FASB issued ASU 2025-09, Derivatives and Hedging (Topic 815), which provides targeted amendments to better align U.S. GAAP with common risk management practices. The guidance simplifies cash flow hedge accounting for forecasted transactions primarily by allowing entities to hedge a broader group of risks using a single derivative. Additionally, the ASU expands the scope of qualifying hedged items to include certain nonfinancial components, creates an optional accounting model for "choose-your-rate" debt instruments, and eliminates the recognition mismatch for dual hedge strategies. The guidance is effective for annual reporting periods beginning after December 15, 2026; early adoption is permitted. We do not expect this guidance to have a material impact on our consolidated financial statements and related disclosures.

In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which eliminates the sequential software development-stage model and requires capitalization when management authorizes and commits to funding a software project and determines it is probable of completion. In evaluating whether it is probable the project will be completed, management is required to consider whether there is significant uncertainty associated with the development activities of the software. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact of the guidance on the consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses (Subtopic 220-40), which requires public entities to disclose detailed components of income statement expenses, such as inventory purchases, employee compensation, depreciation and amortization within relevant expense captions. Companies are also required to explain amounts not disaggregated and define and disclose total selling expenses. The guidance is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. We are currently evaluating the impact of the guidance on our financial statement disclosures.

Eaton Mobility Business

On June 10, 2026, Dana entered into definitive agreements with Eaton Corporation plc (Eaton) and certain wholly owned subsidiaries of Eaton, including Mobility (USA) Corporation (the SpinCo), to acquire Eaton’s Vehicle and eMobility business segments (Mobility business). The structure of the transaction is a Reverse Morris Trust. Following the separation of the Mobility business from Eaton, a subsidiary of SpinCo will merge with and into Dana, and Dana will survive the merger as a wholly owned subsidiary of SpinCo. Following the merger, each outstanding share of Dana will be converted into the right to receive one SpinCo share. Prior to or at the closing, a subsidiary of Eaton will sell to Dana 100% of the stock in Royal Precision Holdings Corp. in exchange for cash consideration (the Royal Precision Purchase Price). In the event of an election by Dana, certain specified assets (as defined in the separation agreement) will be purchased by Dana from Eaton and certain of its subsidiaries. When the transaction is completed, former Eaton shareholders will own at least 50.1% and former Dana shareholders will own no more than 49.9% of the outstanding shares of SpinCo common stock on a fully diluted basis. Under the terms of the agreement, Eaton will receive a cash distribution of approximately $1,100, subject to adjustment for cash and indebtedness and reduced by the Royal Precision and other specified assets Purchase Price. The transaction has been unanimously approved by the Boards of Directors of both Dana and Eaton. No vote by Eaton shareholders is required. The transaction is intended to be tax-free to Dana and Eaton shareholders for U.S. federal income tax purposes. The transaction is anticipated to close in the first quarter of 2027, subject to approval by Dana's shareholders and customary closing conditions, including receipt of regulatory approvals. The agreements contain certain customary termination rights for Dana and Eaton, including, without limitation, a right for either party to terminate if the transaction is not completed on or before June 10, 2027. Termination resulting from Dana shareholders voting against the transaction would result in Dana having to reimburse Eaton for certain expenses in an amount not to exceed $20. Termination under specified circumstances would require Dana to pay Eaton a termination fee of $159. In anticipation of the transaction, Mobility (USA) Corporation and Dana became parties to a $2,600 bridge facility, a $350 secured term loan A commitment and a $1,200 secured revolving credit facility commitment. See Note 10 for additional information.

Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Operating activities
Net income (loss)	$ 1,091	$ 61
Less: Net income from discontinued operations	1,095	90
Net income (loss) from continuing operations	(4)	(29)
Depreciation	166	171
Amortization	5	6
Amortization of deferred financing charges	2	3
Earnings of affiliates, net of dividends received	(8)	(25)
Stock compensation expense	19	23
Deferred income taxes	30	(26)
Pension expense, net	(4)
Change in working capital	(221)	(202)
Change in other noncurrent assets and liabilities	(23)	(13)
Loss on divestiture of ownership interests	8	7
Noncash electric vehicle program termination charges	59
Other, net	(39)	54
Net cash used in operating activities from continuing operations	(10)	(31)
Net cash provided by (used in) operating activities from discontinued operations	(76)	26
Net cash used in operating activities	(86)	(5)
Investing activities
Purchases of property, plant and equipment	(204)	(104)
Proceeds from sale of property, plant and equipment	2	11
Proceeds from sales of investments	1	57
Settlements of undesignated derivatives	(6)	(6)
Other, net		4
Net cash used in investing activities from continuing operations	(207)	(38)
Net cash provided by (used in) investing activities from discontinued operations	2,528	(22)
Net cash provided by (used in) investing activities	2,321	(60)
Financing activities
Net change in short-term debt	(618)	522
Repayment of long-term debt	(1,338)	(210)
Dividends paid to common stockholders	(26)	(29)
Repurchases of common stock	(169)	(257)
Distributions to noncontrolling interests	(2)	(3)
Payment for mandatorily redeemable noncontrolling interest	(190)
Swap settlements		(14)
Other, net	(25)	(8)
Net cash provided by (used in) financing activities	(2,368)	1
Net decrease in cash, cash equivalents and restricted cash	(133)	(64)
Cash, cash equivalents and restricted cash – beginning of period	486	512
Cash, cash equivalents and restricted cash – end of period (Note 5)	349	501
Effect of exchange rate changes on cash balances	(4)	53
Non-cash investing activity
Purchases of property, plant and equipment held in accounts payable	$ 38	$ 29

Note 12 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Accrual for Environmental Loss Contingencies	$ 12	$ 14
Reimbursement of IEEPA Tariffs Paid [Member]
Gain Contingency, Unrecorded Amount	$ 26

Consolidated Statement of Comprehensive Income (Unudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net income (loss) from continuing operations	$ 11	$ (12)	$ (4)	$ (29)
Other comprehensive income (loss) from continuing operations, net of tax:
Currency translation adjustments	21	35	23	47
Hedging gains and losses	(2)	23	(6)	41
Defined benefit plans			(1)
Other comprehensive income from continuing operations	19	58	16	88
Total comprehensive income from continuing operations	30	46	12	59
Net income (loss) from discontinued operations	(11)	43	1,095	90
Other comprehensive income from discontinued operations, net of tax:
Currency translation adjustments		6	179	8
Hedging gains and losses		1		1
Other comprehensive income from discontinued operations	0	7	179	9
Total comprehensive income (loss) from discontinued operations	(11)	50	1,274	99
Total comprehensive income	19	96	1,286	158
Less: Comprehensive income from continuing operations attributable to noncontrolling interests	(5)	(6)	(9)	(11)
Comprehensive income attributable to the parent company	$ 14	$ 90	$ 1,277	$ 147

Note 3 - Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Intangible Assets Other Than Goodwill [Table Text Block]

			June 30, 2026							December 31, 2025
	Weighted Average Useful Life (years)		Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment and Amortization			Net Carrying Amount
Amortizable intangible assets
Core technology		11	$	41	$	(28	)	$	13	$	50	$	(32	)	$	18
Customer relationships		11		60		(51	)		9		67		(53	)		14
Non-amortizable intangible assets
Trademarks and trade names				36					36		39					39
			$	137	$	(79	)	$	58	$	156	$	(85	)	$	71

Schedule of Intangible Assets, Excluding Goodwill, by Segment [Table Text Block]

	June 30, 2026
Light Vehicle	$	6
Commercial Vehicle		52
	$	58

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
Charged to cost of sales	$	1	$	1	$	2	$	2
Charged to amortization of intangibles		1		2		3		4
Total amortization	$	2	$	3	$	5	$	6

Significant Accounting Policies (Policies)	6 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2026
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation — Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information. These statements are unaudited, but in the opinion of management include all adjustments (consisting only of normal recurring adjustments) necessary for a fair statement of the results for the interim periods. The results reported in these consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. The financial information included herein should be read in conjunction with the consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2025 (the 2025 Form 10-K). Certain prior year amounts have been reclassified to conform to the current presentation. On January 1, 2026, we completed the previously announced sale of our Off-Highway business to Allison Transmission Holdings, Inc. The sale was consummated pursuant to the terms and conditions of the definitive agreement to sell that we entered in June 2025. A component of an entity is reported in discontinued operations after meeting the criteria for held for sale classification if the disposition represents a strategic shift that has, or will have, a major effect on the entity’s operations and financial results. We analyzed the quantitative and qualitative factors relevant to the divestiture of our Off-Highway business and determined that the conditions for discontinued operations presentation have been met. As such, the financial position, results of operations and cash flows of that business are reported as discontinued operations in the accompanying consolidated financial statements. Prior period amounts have been recast to reflect discontinued operations presentation. See Note 2 for additional information.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently adopted accounting pronouncements In July 2025, the FASB issued ASU 2025-05, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which introduces a practical expedient that allows entities to assume conditions existing at the balance-sheet date will remain constant over the remaining life of current accounts receivable and contract assets arising from revenue transactions. We adopted this ASU effective January 1, 2026 and elected to utilize the practical expedient. The adoption of this amendment did not have a material impact on our consolidated financial statements. Recently issued accounting pronouncements In December 2025, the Financial Accounting Standards Board (FASB) issued ASU 2025-10, Government Grants (Topic 832), which addresses the recognition, measurement, presentation and disclosure of government grants, including grants related to income and grants related to assets. The new guidance leverages the principles in the accounting framework for government assistance in IFRS, specifically IAS 20, with certain targeted improvements. This ASU requires entities to recognize government grants only when it is probable that the entity will meet the stipulated grant conditions and ultimately receive the grant funds. This ASU provides two acceptable methods for accounting for grants related to assets: the grant may be initially recognized as deferred income, or it may be recorded as an adjustment to reduce the cost basis of the related asset. For grants related to income, the standard mandates that these shall be consistently recognized as deferred income. Deferred grants should be recognized in earnings on a systematic and rational basis either under a general heading such as other income or deducted from the related expense. The guidance is effective for annual reporting periods beginning after December 15, 2028, and interim reporting periods within those annual reporting periods; early adoption is permitted. We do not expect this guidance to have a material impact on our consolidated financial statements and related disclosures. In November 2025, the FASB issued ASU 2025-09, Derivatives and Hedging (Topic 815), which provides targeted amendments to better align U.S. GAAP with common risk management practices. The guidance simplifies cash flow hedge accounting for forecasted transactions primarily by allowing entities to hedge a broader group of risks using a single derivative. Additionally, the ASU expands the scope of qualifying hedged items to include certain nonfinancial components, creates an optional accounting model for "choose-your-rate" debt instruments, and eliminates the recognition mismatch for dual hedge strategies. The guidance is effective for annual reporting periods beginning after December 15, 2026; early adoption is permitted. We do not expect this guidance to have a material impact on our consolidated financial statements and related disclosures. In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, which eliminates the sequential software development-stage model and requires capitalization when management authorizes and commits to funding a software project and determines it is probable of completion. In evaluating whether it is probable the project will be completed, management is required to consider whether there is significant uncertainty associated with the development activities of the software. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact of the guidance on the consolidated financial statements and related disclosures. In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses (Subtopic 220-40), which requires public entities to disclose detailed components of income statement expenses, such as inventory purchases, employee compensation, depreciation and amortization within relevant expense captions. Companies are also required to explain amounts not disaggregated and define and disclose total selling expenses. The guidance is effective for fiscal years beginning after December 15, 2026, and interim periods beginning after December 15, 2027. We are currently evaluating the impact of the guidance on our financial statement disclosures.
Business Combination [Policy Text Block]	Eaton Mobility Business On June 10, 2026, Dana entered into definitive agreements with Eaton Corporation plc (Eaton) and certain wholly owned subsidiaries of Eaton, including Mobility (USA) Corporation (the SpinCo), to acquire Eaton’s Vehicle and eMobility business segments (Mobility business). The structure of the transaction is a Reverse Morris Trust. Following the separation of the Mobility business from Eaton, a subsidiary of SpinCo will merge with and into Dana, and Dana will survive the merger as a wholly owned subsidiary of SpinCo. Following the merger, each outstanding share of Dana will be converted into the right to receive one SpinCo share. Prior to or at the closing, a subsidiary of Eaton will sell to Dana 100% of the stock in Royal Precision Holdings Corp. in exchange for cash consideration (the Royal Precision Purchase Price). In the event of an election by Dana, certain specified assets (as defined in the separation agreement) will be purchased by Dana from Eaton and certain of its subsidiaries. When the transaction is completed, former Eaton shareholders will own at least 50.1% and former Dana shareholders will own no more than 49.9% of the outstanding shares of SpinCo common stock on a fully diluted basis. Under the terms of the agreement, Eaton will receive a cash distribution of approximately $1,100, subject to adjustment for cash and indebtedness and reduced by the Royal Precision and other specified assets Purchase Price. The transaction has been unanimously approved by the Boards of Directors of both Dana and Eaton. No vote by Eaton shareholders is required. The transaction is intended to be tax-free to Dana and Eaton shareholders for U.S. federal income tax purposes. The transaction is anticipated to close in the first quarter of 2027, subject to approval by Dana's shareholders and customary closing conditions, including receipt of regulatory approvals. The agreements contain certain customary termination rights for Dana and Eaton, including, without limitation, a right for either party to terminate if the transaction is not completed on or before June 10, 2027. Termination resulting from Dana shareholders voting against the transaction would result in Dana having to reimburse Eaton for certain expenses in an amount not to exceed $20. Termination under specified circumstances would require Dana to pay Eaton a termination fee of $159. In anticipation of the transaction, Mobility (USA) Corporation and Dana became parties to a $2,600 bridge facility, a $350 secured term loan A commitment and a $1,200 secured revolving credit facility commitment. See Note 10 for additional information.

Disclosure of accounting policy for business combination.

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Note 12 - Commitments and Contingencies

6 Months Ended

Jun. 30, 2026

Commitments and Contingencies Disclosure [Text Block]

Note 12. Commitments and Contingencies

Environmental liabilities — Accrued environmental liabilities were $12 at June 30, 2026 and $14 at December 31, 2025. We consider the most probable method of remediation, current laws and regulations and existing technology in estimating our environmental liabilities.

Other legal matters — We are subject to various pending or threatened legal proceedings arising out of the normal course of business or operations. In view of the inherent difficulty of predicting the outcome of such matters, we cannot state the eventual outcome of these matters. However, based on current knowledge and after consultation with legal counsel, we believe that any liabilities that may result from these proceedings will not have a material adverse effect on our liquidity, financial condition or results of operations.

Tariffs — In February 2026, the U.S. Supreme Court issued a ruling invalidating certain tariffs previously imposed under the International Emergency Economic Powers Act (IEEPA). The U.S. Court of International Trade (CIT) has ordered the U.S. Customs and Border Protection (CBP) to refund the collected IEEPA tariffs. During the second quarter of 2026, we filed for refunds of previously paid tariffs assessed under IEEPA in an aggregate amount of $26 under Phase 1 and Phase 2 of the process established by the CBP. We expect to file for refunds under Phase 3 when a formal process is established. Based on the formal process established by the CBP for Phase 1 and Phase 2 refunds and the fact that we have begun to receive cash refunds from the CBP, we believe it is probable that we will recover the IEEPA refunds we have filed for under Phase 1 and Phase 2. As such, we have recorded the $26 recoverable to accounts receivable - other along with a corresponding reduction of cost of sales. As we previously invoiced our customers for reimbursement of IEEPA tariffs paid, we have recorded an offsetting obligation due to our customers to accounts receivable - trade with a corresponding reduction of net sales.

Note 2 - Discontinued Operations (Tables)

6 Months Ended

Jun. 30, 2026

Disposal Groups, Including Discontinued Operations [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2026			2025			2026			2025
Net sales	$	16		$	663		$	30		$	1,263
Cost of sales		12			542			26			1,039
Selling, general and administrative expenses					28						55
Amortization of intangibles					1						2
Restructuring charges, net					(1	)					2
Gain (loss) on sale of Off-Highway business		(5	)					1,186
Other income (expense), net		(6	)		(18	)		(55	)		(25	)
Earnings (loss) from discontinued operations before interest and income taxes		(7	)		75			1,135			140
Interest income					1						2
Earnings (loss) from discontinued operations before income taxes		(7	)		76			1,135			142
Income tax expense		4			33			40			52
Net income (loss) from discontinued operations	$	(11	)	$	43		$	1,095		$	90

	June 30,		December 31,
	2026		2025
Accounts receivable - Trade	$	13	$	360
Accounts receivable - Other				39
Inventories		23		533
Other current assets				97
Current assets of disposal group held for sale	$	36	$	1,029

Goodwill	$	—	$	270
Intangibles				72
Deferred tax assets				49
Other noncurrent assets				44
Operating lease assets				39
Property, plant and equipment, net		21		480
Noncurrent assets of disposal group held for sale	$	21	$	954

Current portion of long-term debt	$	—	$	2
Accounts payable		14		425
Accrued payroll and employee benefits				72
Taxes on income				11
Current portion of operating lease liabilities				9
Other accrued liabilities				169
Current liabilities of disposal group held for sale	$	14	$	688

Long-term debt	$	—	$	33
Noncurrent operating lease liabilities				30
Pension and postretirement obligations				48
Other noncurrent liabilities				72
Noncurrent liabilities of disposal group held for sale	$	—	$	183

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

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Consolidated Balance Sheet (Unaudited) (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Allowance for doubtful accounts	$ 12	$ 15
Debt issuance costs	$ 8	$ 16
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares outstanding (in shares)	0	0
Common stock, shares authorized (in shares)	450,000,000	450,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	107,576,158	112,284,138
Treasury stock, shares (in shares)	2,508,917	1,944,700

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Note 16 - Revenue From Contracts With Customers (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Contract with Customer, Receivable, after Allowance for Credit Loss	$ 5	$ 6
Contract with Customer, Receivable, after Allowance for Credit Loss, Noncurrent	9	15
Contract with Customer, Liability, Current	167	25
Contract with Customer, Liability, Noncurrent	54	$ 59
Unapplied Section 232 Tariff Credits [Member]
Contract with Customer, Receivable, after Allowance for Credit Loss, Current	$ 135
Maximum [Member]
Customer Payment Terms (Day)	180 days

Note 18 - Equity Affiliates - Equity Method Investments (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Investments in equity affiliates	$ 106
Investments in affiliates carried at cost	6
Investments in affiliates	$ 112	$ 102
Dongfeng Dana Axle Co., Ltd. (DDAC) [Member]
Investments in equity affiliates, ownership percentage	50.00%
Investments in equity affiliates	$ 71
ROC-Spicer, Ltd. [Member]
Investments in equity affiliates, ownership percentage	50.00%
Investments in equity affiliates	$ 23
Tai Ya Investment (HK) Co., Limited [Member]
Investments in equity affiliates, ownership percentage	50.00%
Investments in equity affiliates	$ 6
All Others as a Group [Member]
Investments in equity affiliates	$ 6

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

Note 8 - Stock Compensation (Tables)

6 Months Ended

Jun. 30, 2026

Schedule of Nonvested Share Activity [Table Text Block]

	Granted		Grant Date
	(In millions)		Fair Value*
RSUs		0.3	$	31.54
PSUs		0.3	$	33.24
Dana Transformation Awards		1.0	$	49.15

Note 11 - Fair Value Measurements and Derivatives - Location and Amount of Gain or (Loss) Recognized in Income on Undesignated Derivatives 2 (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold
Gain (loss) recognized in income on foreign currency derivatives not designated as hedging instruments	$ 2	$ 1	$ 6	$ 0
Location, Statement of Income, Balance [Axis]: us-gaap:OtherOperatingIncomeExpenseNet
Gain (loss) recognized in income on foreign currency derivatives not designated as hedging instruments	$ 1	$ (11)	$ (6)	$ (17)

Note 8 - Stock Compensation (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-Based Payment Arrangement, Expense	$ 8.0	$ 10.0	$ 19.0	$ 23.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	64.0		$ 64.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			3 years
Performance Share Units [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			3.56%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate			44.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			2 years 10 months 24 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid			$ 1.8
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)			0.8
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	7.0		$ 7.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 3 months 18 days
Dana Transformation Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)			4 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Average Stock Price Hurdle, Consecutive Trading Days (Day)			20 days
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	39.0		$ 39.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			4 years
Dana Transformation Awards [Member] \| January 2026 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			3.64%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate			48.29%
Dana Transformation Awards [Member] \| February 2026 [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			3.66%
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate			47.11%
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Share-Based Liabilities Paid			$ 1.0
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)			0.7
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 18.0		$ 18.0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			1 year 8 months 12 days

Note 11 - Fair Value Measurements and Derivatives - Outstanding Currency Derivatives (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
US Dollar Foreign Exchange Forward [Member]
Notional amount	$ 284
Maturity	Mar. 31, 2027
Euro Foreign Exchange Forward [Member]
Notional amount	$ 215
Maturity	Sep. 30, 2027
Indian Rupee Foreign Exchange Forward [Member]
Notional amount	$ 58
Maturity	Mar. 31, 2027
Brazilian Real Foreign Exchange Forward [Member]
Notional amount	$ 39
Maturity	Dec. 31, 2026
South African Rand Foreign Exchange Forward [Member]
Notional amount	$ 16
Maturity	Nov. 30, 2026
Canadian Dollar Foreign Exchange Forward [Member]
Notional amount	$ 10
Maturity	Aug. 31, 2026
Thai Baht Foreign Exchange Forward [Member]
Notional amount	$ 58
Maturity	Jul. 31, 2026
British Pound Foreign Exchange Forward [Member]
Notional amount	$ 13
Maturity	Sep. 30, 2026
Mexican Peso Foreign Exchange Forward [Member]
Notional amount	$ 3
Maturity	Jul. 31, 2026
Swedish Krona Foreign Exchange Forward [Member]
Notional amount	$ 2
Maturity	Jul. 31, 2026
Foreign Exchange Forward [Member]
Notional amount	$ 698	$ 898
US Dollar Currency Swap [Member]
Notional amount	$ 318
Maturity	Nov. 30, 2027
Currency Swap [Member]
Notional amount	$ 318	$ 712
Foreign Exchange Contract [Member]
Notional amount	1,016
Designated as Hedging Instrument [Member] \| US Dollar Foreign Exchange Forward [Member]
Notional amount	209
Designated as Hedging Instrument [Member] \| Euro Foreign Exchange Forward [Member]
Notional amount	203
Designated as Hedging Instrument [Member] \| Brazilian Real Foreign Exchange Forward [Member]
Notional amount	28
Designated as Hedging Instrument [Member] \| Canadian Dollar Foreign Exchange Forward [Member]
Notional amount	5
Designated as Hedging Instrument [Member] \| British Pound Foreign Exchange Forward [Member]
Notional amount	7
Designated as Hedging Instrument [Member] \| Foreign Exchange Forward [Member]
Notional amount	452
Designated as Hedging Instrument [Member] \| US Dollar Currency Swap [Member]
Notional amount	318
Designated as Hedging Instrument [Member] \| Currency Swap [Member]
Notional amount	318
Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member]
Notional amount	770
Not Designated as Hedging Instrument [Member] \| US Dollar Foreign Exchange Forward [Member]
Notional amount	75
Not Designated as Hedging Instrument [Member] \| Euro Foreign Exchange Forward [Member]
Notional amount	12
Not Designated as Hedging Instrument [Member] \| Indian Rupee Foreign Exchange Forward [Member]
Notional amount	58
Not Designated as Hedging Instrument [Member] \| Brazilian Real Foreign Exchange Forward [Member]
Notional amount	11
Not Designated as Hedging Instrument [Member] \| South African Rand Foreign Exchange Forward [Member]
Notional amount	16
Not Designated as Hedging Instrument [Member] \| Canadian Dollar Foreign Exchange Forward [Member]
Notional amount	5
Not Designated as Hedging Instrument [Member] \| Thai Baht Foreign Exchange Forward [Member]
Notional amount	58
Not Designated as Hedging Instrument [Member] \| British Pound Foreign Exchange Forward [Member]
Notional amount	6
Not Designated as Hedging Instrument [Member] \| Mexican Peso Foreign Exchange Forward [Member]
Notional amount	3
Not Designated as Hedging Instrument [Member] \| Swedish Krona Foreign Exchange Forward [Member]
Notional amount	2
Not Designated as Hedging Instrument [Member] \| Foreign Exchange Forward [Member]
Notional amount	246
Not Designated as Hedging Instrument [Member] \| US Dollar Currency Swap [Member]
Notional amount	0
Not Designated as Hedging Instrument [Member] \| Currency Swap [Member]
Notional amount	0
Not Designated as Hedging Instrument [Member] \| Foreign Exchange Contract [Member]
Notional amount	$ 246

Note 15 - Other Income (Expense), Net

6 Months Ended

Jun. 30, 2026