Pension and Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Components of Net Periodic Benefit Cost (Credit) and Other Amounts Recognized in OCI [Table Text Block]

Components of net periodic benefit cost (credit) and other amounts recognized in OCI —

	Pension Benefits
	2018						2017						2016
	U.S.			Non-U.S.			U.S.			Non-U.S.			U.S.			Non-U.S.
Interest cost	$	43		$	7		$	51		$	7		$	53		$	7
Expected return on plan assets	(71		)	(3		)	(82		)	(3		)	(92		)	(2		)
Service cost				7						7						5
Amortization of net actuarial loss	28			6			23			7			21			6
Termination benefit										1
Other				2												1
Net periodic benefit cost (credit)	—			19			(8		)	19			(18		)	17
Recognized in OCI:
Amount due to net actuarial losses	11			4			22			4			68			16
Reclassification adjustment for net actuarial losses in net periodic benefit cost	(28		)	(6		)	(23		)	(7		)	(21		)	(6		)
Curtailment										(1		)
Other				(2		)										(1		)
Total recognized in OCI	(17		)	(4		)	(1		)	(4		)	47			9
Net recognized in benefit cost (credit) and OCI	$	(17	)	$	15		$	(9	)	$	15		$	29		$	26

	OPEB - Non-U.S.
	2018			2017		2016
Interest cost	$	3		$	3	$	3
Service cost	1			1		1
Amortization of net actuarial gain						(1		)
Net periodic benefit cost	4			4		3
Recognized in OCI:
Amount due to net actuarial (gains) losses	(7		)	2		4
Reclassification adjustment for net actuarial gain in net periodic benefit cost						1
Total recognized in OCI	(7		)	2		5
Net recognized in benefit cost and OCI	$	(3	)	$	6	$	8

Reconciliation of Changes in Benefit Obligations, Plan Assets and Funded Status [Table Text Block]

Funded status — The following tables provide reconciliations of the changes in benefit obligations, plan assets and funded status.

	Pension Benefits
	2018						2017						OPEB - Non-U.S.
	U.S.			Non-U.S.			U.S.			Non-U.S.			2018			2017
Reconciliation of benefit obligation:
Obligation at beginning of period	$	1,730		$	377		$	1,682		$	309		$	99		$	91
Interest cost	43			7			51			7			3			3
Service cost				7						7			1			1
Actuarial (gain) loss	(148		)	7			115			7			(7		)	2
Benefit payments	(124		)	(14		)	(118		)	(14		)	(5		)	(5		)
Acquisitions										22
Settlements				(2		)				(1		)
Termination benefit										1
Curtailment										(1		)
Translation adjustments				(18		)				40			(8		)	7
Obligation at end of period	$	1,501		$	364		$	1,730		$	377		$	83		$	99

	Pension Benefits
	2018						2017						OPEB - Non-U.S.
	U.S.			Non-U.S.			U.S.			Non-U.S.			2018			2017
Reconciliation of fair value of plan assets:
Fair value at beginning of period	$	1,513		$	71		$	1,454		$	51		$	—		$	—
Actual return on plan assets	(88		)	6			175			6
Employer contributions				16			2			15			5			5
Benefit payments	(124		)	(14		)	(118		)	(14		)	(5		)	(5		)
Settlements				(2		)				(1		)
Acquisition										12
Translation adjustments				(6		)				2
Fair value at end of period	$	1,301		$	71		$	1,513		$	71		$	—		$	—
Funded status at end of period	$	(200	)	$	(293	)	$	(217	)	$	(306	)	$	(83	)	$	(99	)

Amounts Recognized in the Balance Sheet [Table Text Block]

Amounts recognized in the balance sheet —

	Pension Benefits
	2018						2017						OPEB - Non-U.S.
	U.S.			Non-U.S.			U.S.			Non-U.S.			2018			2017
Amounts recognized in the consolidated balance sheet:
Noncurrent assets	$	—		$	3		$	—		$	3		$	—		$	—
Current liabilities				(13		)				(13		)	(5		)	(5		)
Noncurrent liabilities	(200		)	(283		)	(217		)	(296		)	(78		)	(94		)
Net amount recognized	$	(200	)	$	(293	)	$	(217	)	$	(306	)	$	(83	)	$	(99	)

Amounts recognized in AOCI —

	Pension Benefits
	2018						2017						OPEB - Non-U.S.
	U.S.			Non-U.S.			U.S.			Non-U.S.			2018			2017
Amounts recognized in AOCI:
Net actuarial loss (gain)	$	542		$	84		$	559		$	88		$	(15	)	$	(8	)
AOCI before tax	542			84			559			88			(15		)	(8		)
Deferred taxes	(6		)	(22		)	(10		)	(22		)	4			3
Net	$	536		$	62		$	549		$	66		$	(11	)	$	(5	)

Aggregate Funding Levels [Table Text Block]

Aggregate funding levels — The following table presents information regarding the aggregate funding levels of our defined benefit pension plans at December 31:

	2018				2017
	U.S.		Non-U.S.		U.S.		Non-U.S.
Plans with fair value of plan assets in excess of obligations:
Accumulated benefit obligation	$	14	$	15	$	16	$	15
Projected benefit obligation	14		16		16		15
Fair value of plan assets	15		19		16		18
Plans with obligations in excess of fair value of plan assets:
Accumulated benefit obligation	$	1,487	$	322	$	1,714	$	334
Projected benefit obligation	1,487		348		1,714		362
Fair value of plan assets	1,286		52		1,497		53

Fair Value of Pension Plan Assets [Table Text Block]

Fair value of pension plan assets —

			Fair Value Measurements at December 31, 2018
			U.S.						Non-U.S.
Asset Category	Total		Level 1		Level 2		NAV (a)		Level 1		Level 2		Level 3
Equity securities:
U.S. all cap (b)	$	35	$	35	$	—	$	—	$	—	$	—	$	—
U.S. large cap	43						43
U.S. small cap	4		4
EAFE composite	41						41
Emerging markets	28						28
Fixed income securities:
U.S. bonds (c)	33				33
Corporate bonds	814				616		198
U.S. Treasury strips	115				115
Non-U.S. government securities	25										25
Emerging market debt	48						48
Alternative investments:
Insurance contracts (d)	35												35
Real estate	21						21
Other (e)	10										10
Cash and cash equivalents	120				119						1
Total	$	1,372	$	39	$	883	$	379	$	—	$	36	$	35

			Fair Value Measurements at December 31, 2017
			U.S.							Non-U.S.
Asset Category	Total		Level 1		Level 2			NAV (a)		Level 1		Level 2		Level 3
Equity securities:
U.S. all cap (b)	$	62	$	62	$	—		$	—	$	—	$	—	$	—
U.S. large cap	61							61
U.S. small cap	7		7
EAFE composite	65							65
Emerging markets	52							52
Fixed income securities:
U.S. bonds (c)	61				61
Corporate bonds	464				226			238
U.S. Treasury strips	281				281
Non-U.S. government securities	26											26
Emerging market debt	82							82
Alternative investments:
Insurance contracts (d)	33													33
Real estate	35							35
Other (e)	1				(10		)					11
Cash and cash equivalents	354				353							1
Total	$	1,584	$	69	$	911		$	533	$	—	$	38	$	33

________________________________

Notes:

(a) Certain assets are measured at fair value using the net asset value (NAV) per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy.

(b) This category comprises a combination of small-, mid- and large-cap equity stocks that are allocated at the investment manager's discretion. Investments include common and preferred securities as well as equity funds that invest in these instruments.

(c) This category represents a combination of high-yield and investment grade corporate bonds, sovereign bonds, Yankee bonds, asset-backed securities and U.S. government bonds. Investments include fixed income funds that invest in these instruments.

(d) This category comprises contracts placed with insurance companies where the underlying assets are invested in fixed interest securities.

(e) Other assets in the U.S. represent interest rate derivatives which had a market value of $(10) at December 31, 2017.

Reconciliation of Level 3 Assets [Table Text Block]

	2018			2017
	Non-U.S.			Non-U.S.
Reconciliation of Level 3 Assets	Insurance Contracts			Insurance Contracts
Fair value at beginning of period	$	33		$	16
Actual gains relating to assets still held at the reporting date	4			3
Purchases, sales and settlements	(1		)	1
Currency impact	(1		)	3
Transfers into (out of) Level 3				10
Fair value at end of period	$	35		$	33

One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

A one-percentage-point change in assumed health care cost trend rates would have the following effects for 2018:

	1% Point Increase		1% Point Decrease
Effect on total of service and interest cost components	$	1	$	(1	)
Effect on OPEB obligations	8		(7		)

Expected Future Benefit Payments [Table Text Block]

Estimated future benefit payments and contributions — Expected benefit payments by our pension and OPEB plans for each of the next five years and for the following five-year period are as follows:

	Pension Benefits				OPEB
Year	U.S.		Non-U.S.		Non-U.S.
2019	$	1,001	$	25	$	5
2020	43		15		5
2021	42		15		5
2022	42		17		5
2023	41		17		5
2024 to 2028	191		103		24
Total	$	1,360	$	192	$	49

Multiemployer Pension Plans [Table Text Block]

	Employer Identification Number/ Plan Number	PPA Zone Status		Funding Plan Pending/ Implemented	Contributions by Dana						Surcharge Imposed
Pension Fund		2018	2017		2018		2017		2016
SPT	23-6648508 / 499	Green	Green	No	$	12	$	11	$	10	No

Pension Plan [Member]

Significant Weighted Average Assumptions Used [Table Text Block]

Significant assumptions — The significant weighted-average assumptions used in the measurement of pension benefit obligations at December 31 of each year and the net periodic benefit cost for each year are as follows:

	2018				2017				2016
	U.S.		Non-U.S.		U.S.		Non-U.S.		U.S.		Non-U.S.
Pension benefit obligations:
Discount rate	4.22	%	2.42	%	3.55	%	2.25	%	3.92	%	2.48	%
Net periodic benefit cost:
Discount rate	2.56	%	2.54	%	3.24	%	2.34	%	3.29	%	2.56	%
Rate of compensation increase	N/A		3.21	%	N/A		3.33	%	N/A		3.12	%
Expected return on plan assets	6.00	%	4.66	%	6.00	%	5.92	%	6.50	%	5.42	%

Other Postretirement Benefits Plan [Member]

Significant Weighted Average Assumptions Used [Table Text Block]

The significant weighted-average assumptions used in the measurement of OPEB obligations at December 31 of each year and the net periodic benefit cost for each year are as follows:

	OPEB - Non-U.S.
	2018		2017		2016
OPEB benefit obligations:
Discount rate	3.71	%	3.41	%	3.69	%
Net periodic benefit cost:
Discount rate	3.42	%	3.70	%	3.45	%
Initial health care cost trend rate	4.12	%	5.07	%	5.32	%
Ultimate health care cost trend rate	5.10	%	5.07	%	5.02	%
Year ultimate reached	2023		2018		2018