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Pensions, Other Post-retirement Benefits and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Benefit Costs

	Pension Benefits												Other Post-Retirement Benefits
	Year Ended December 31,												Year Ended December 31,
	2017				2016				2015				2017				2016				2015
	(in millions)
Service cost	$	18			$	18			$	19			$	—			$	—			$	—
Interest cost	63				70				66				12				14				13
Expected return on plan assets	(58		)		(59		)		(71		)		—				—				—
Amortization of actuarial losses	26				22				26				—				2				5
Amortization of prior service credit	—				—				—				(4		)		(4		)		(4		)
Curtailment gain	—				—				(2		)		—				—				—
	$	49			$	51			$	38			$	8			$	12			$	14

Automotive Segment

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Pension Benefits																Other Post-Retirement Benefits
	United States Plans								Non-U.S. Plans
	2017				2016				2017				2016				2017				2016
	(in millions)
Change in benefit obligation:
Benefit obligation, beginning of year	$	1,167			$	1,221			$	510			$	487			$	295			$	323
Service cost	2				3				15				14				—				—
Interest cost	44				49				11				13				12				14
Benefits paid	(73		)		(98		)		(22		)		(21		)		(23		)		(24		)
Medicare subsidies received	—				—				—				—				2				2
Curtailments	—				—				—				(1		)		—				—
Settlements	—				—				(1		)		(4		)		—				—
Actuarial losses (gains)	41				(8		)		(17		)		39				(1		)		(21		)
Business combinations	—				—				1				—				—				—
Currency translation	—				—				68				(17		)		1				1
Benefit obligation, end of year	1,181				1,167				565				510				286				295
Change in plan assets:
Fair value of plan assets, beginning of year	856				870				63				57				—				—
Actual return on plan assets	116				45				3				3				—				—
Settlements	—				—				(1		)		(4		)		—				—
Company contributions	44				39				30				30				21				22
Benefits paid	(73		)		(98		)		(22		)		(21		)		(23		)		(24		)
Business combinations	—				—				—				1				—				—
Medicare subsidies received	—				—				—				—				2				2
Currency translation	—				—				8				(3		)		—				—
Fair value of plan assets, end of year	943				856				81				63				—				—
Funded status of the plan and amounts recognized in the consolidated balance sheets	$	(238	)		$	(311	)		$	(484	)		$	(447	)		$	(286	)		$	(295	)
Amounts recognized in accumulated other comprehensive loss, inclusive of tax impacts:
Net actuarial loss	$	393			$	435			$	87			$	93			$	32			$	34
Prior service cost (credit)	—				—				1				1				(2		)		(6		)
	$	393			$	435			$	88			$	94			$	30			$	28

Schedule of Assumptions Used [Table Text Block]

Weighted-average assumptions used to determine the benefit obligation as of December 31, 2017, 2016 and 2015.

	Pension Benefits																		Other Post-Retirement Benefits
	United States Plans									Non-U.S. Plans
	December 31,																		December 31,
	2017			2016			2015			2017			2016			2015			2017			2016			2015
	(in millions)
Discount rate	3.50	%		3.90	%		4.15	%		2.26	%		2.03	%		2.72	%		3.68	%		3.98	%		4.18	%
Rate of compensation increase	n/a			n/a			n/a			2.97	%		2.96	%		3.19	%		n/a			n/a			n/a

Weighted-average assumptions used to determine net periodic benefit cost (credit) for the years ended December 31, 2017, 2016 and 2015:

	Pension Benefits																		Other Post-Retirement Benefits
	United States Plans									Non-U.S. Plans
	Year Ended December 31,																		Year Ended December 31,
	2017			2016			2015			2017			2016			2015			2017			2016			2015
	(in millions)
Discount rate	3.90	%		4.15	%		3.85	%		2.03	%		2.72	%		1.77	%		3.98	%		4.18	%		3.84	%
Expected return on plan assets	5.55	%		5.65	%		6.55	%		3.05	%		3.22	%		3.52	%		n/a			n/a			n/a
Rate of compensation increase	n/a			n/a			n/a			2.96	%		3.19	%		3.16	%		n/a			n/a			n/a

Schedule of projected benefit obligation in excess of plan assets [Table Text Block]

	Pension Benefits																Other Post-Retirement Benefits
	United States Plans								Non-U.S. Plans
	December 31,																December 31,
	2017				2016				2017				2016				2017				2016
	(in millions)
Projected benefit obligation	$	1,181			$	1,167			$	565			$	509			$	286			$	295
Fair value of plan assets	943				856				81				62				—				—

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

	Pension Benefits
	United States Plans								Non-U.S. Plans
	December 31,
	2017				2016				2017				2016
	(in millions)
Projected benefit obligation	$	1,181			$	1,167			$	548			$	494
Accumulated benefit obligation	1,181				1,167				510				459
Fair value of plan assets	943				856				66				50

Schedule of Health Care Cost Trend Rates [Table Text Block]

	Other Post-Retirement Benefits
	2017		2016
Initial health care cost trend rate	6.41%		6.69%
Ultimate health care cost trend rate	5.00%		5.00%
Year ultimate health care cost trend rate reached	2022		2022

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

	Total Service and Interest Cost				APBO
	(in millions)
100 basis point (“bp”) increase in health care cost trend rate	$	1			$	23
100 bp decrease in health care cost trend rate	(1		)		(20		)

Schedule of Expected Benefit Payments [Table Text Block]

		Pension Benefits								Other Post-Retirement Benefits
		United States Plans				Non-U.S. Plans
		(in millions)
2018		$	85			$	25			$	23
2019		85				27				22
2020		86				27				22
2021		87				27				22
2022		87				29				21
2023-2027		379				151				96

Railcar and Food Packaging

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Pension Benefits
	2017				2016
	(in millions)
Change in benefit obligation:
Benefit obligation, beginning of year	$	189			$	191
Service cost	1				1
Interest cost	8				8
Benefits paid	(10		)		(15		)
Actuarial gain	9				4
Adjustment to benefits	15				—
Currency translation	1				—
Benefit obligation, end of year	213				189
Change in plan assets:
Fair value of plan assets, beginning of year	126				133
Actual return on plan assets	16				8
Benefits paid	(10		)		(15		)
Fair value of plan assets, end of year	132				126
Funded status of the plan	$	(81	)		$	(63	)
Amounts recognized in the consolidated balance sheets:
Net liability recognized	$	(81	)		$	(63	)
Amounts recognized in accumulated other comprehensive loss, inclusive of tax impacts:
Net actuarial loss	$	(81	)		$	(63	)
Total	$	(81	)		$	(63	)

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