Retirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Expense for defined contribution and defined benefit pension plans and other post employment defined benefit plans [Text Block]

	Year Ended December 31,
(in millions)	2019		2018		2017
Defined contribution expense	$	37	$	35	$	34
Defined benefit pension expense	45		8		12
Other postretirement employee benefit expense	—		—		1
Total	$	82	$	43	$	47

Reconciliation of the plans' benefit obligations, plan assets, funded status and recognition [Text Block]

	Pension benefits												Other postretirement
	Year Ended December 31,												employee benefits
	2019						2018						Year Ended December 31,
(in millions)	US			Non-US			US			Non-US			2019			2018
Change in projected benefit obligation:
Projected benefit obligation, January 1	$	253		$	612		$	283		$	629		$	87		$	107
Service cost	—			18			—			18			—			—
Interest cost	8			12			9			12			3			3
Plan amendments	—			—			—			2			—			—
Settlement and curtailment	(65		)	(5		)	—			(4		)	—			—
Actuarial (gain) loss	17			75			(18		)	5			3			(6		)
Currency translation	—			(1		)	—			(30		)	—			—
Benefits paid	(15		)	(16		)	(21		)	(20		)	(12		)	(17		)
Projected benefit obligation, December 31	$	198		$	695		$	253		$	612		$	81		$	87
Change in plan assets:
Fair value of plan assets, January 1	$	216		$	438		$	240		$	483
Actual return on plan assets	29			68			(11		)	(18		)
Employer contribution	10			16			7			19
Settlements	(65		)	(5		)	—			(4		)
Currency translation	—			4			—			(22		)
Benefits paid	(14		)	(16		)	(20		)	(20		)
Fair value of plan assets, December 31	$	176		$	505		$	216		$	438
Funded status	$	(22	)	$	(190	)	$	(37	)	$	(174	)	$	(81	)	$	(87	)
Amounts in the Consolidated Balance Sheets consist of:
Non-current assets	$	—		$	28		$	—		$	17		$	—		$	—
Current liabilities	(1		)	(4		)	—			(5		)	(10		)	(11		)
Non-current liabilities	(21		)	(214		)	(37		)	(186		)	(71		)	(76		)
Net amount	$	(22	)	$	(190	)	$	(37	)	$	(174	)	$	(81	)	$	(87	)
Amounts in accumulated other comprehensive loss consist of:
Net actuarial loss	$	82		$	211		$	113		$	193		$	16		$	13
Net prior service (credit) cost	(5		)	2			(6		)	2			(8		)	(12		)
Net amount	$	77		$	213		$	107		$	195		$	8		$	1
Total accumulated benefit obligation for all plans	$	198		$	660		$	253		$	583

Funded status of pension plans with accumulated benefit obligations in excess of plan assets [Text Block]

	December 31,
(in millions)	2019			2018
Accumulated benefit obligation	$	(633	)	$	(650	)
Plan assets	425			450
Deficiency	$	(208	)	$	(200	)
Pension deficiency by country:
United States	$	(22	)	$	(37	)
Germany	(107		)	(95		)
Other	(79		)	(68		)
Total pension deficiency	$	(208	)	$	(200	)

Weighted average asset allocations of funded pensions plans and target allocations [Text Block]

	December 31,				Target Allocation
	2019		2018
U.S. Plans:
Real estate and other	16	%	11	%	0% - 15%
Fixed income securities	50	%	56	%	45% - 65%
Equity securities	34	%	33	%	25% - 45%
	100	%	100	%
Non-U.S. Plans:
Insurance contract, real estate and other	30	%	8	%	0% - 36%
Fixed income securities	33	%	55	%	29% - 62%
Equity securities	37	%	37	%	30% - 43%
	100	%	100	%

Components of net periodic benefit cost [Text Block]

	Pension benefits																		Other postretirement employee benefits
	Year Ended December 31,
	2019						2018						2017						Year Ended December 31,
(in millions)	US			Non-US			US			Non-US			US			Non-US			2019			2018			2017
Service cost	$	—		$	18		$	—		$	18		$	—		$	18		$	—		$	—		$	—
Interest cost	8			12			9			12			9			11			3			3			3
Expected return on plan assets	(11		)	(22		)	(14		)	(27		)	(13		)	(24		)	—			—			—
Settlements, curtailments and other	27			1			—			—			—			—			—			—			—
Amortization of unrecognized prior service (credit) cost	(1		)	—			(1		)	—			(1		)	—			(4		)	(4		)	(4		)
Amortization of unrecognized loss	4			9			4			7			4			8			1			1			2
Net periodic cost (income)	$	27		$	18		$	(2	)	$	10		$	(1	)	$	13		$	—		$	—		$	1

Defined benefit plan weighted average assumptions used in calculating benefit obligations [Text Block]

	December 31,
(percent)	2019	2018
U.S. pension plans:
Discount rate	3.17	4.24
Rate of compensation increase	N/A	N/A
U.S. other postretirement employee benefit plans:
Discount rate	2.95	4.05
Rate of compensation increase	N/A	N/A
Non-U.S. pension plans:
Discount rate	1.61	2.28
Rate of compensation increase	3.05	2.99

The Company's weighted-average assumptions used to determine the net periodic benefit cost/(income) for its defined benefit pension and other postretirement employee benefit plans for the years ended December 31, 2019 and 2018 were as follows:

	Year Ended December 31,
(percent)	2019	2018
U.S. pension plans:
Discount rate - service cost	4.24	3.55
Effective interest rate on benefit obligation	3.88	3.13
Expected long-term rate of return on assets	6.00	6.00
Average rate of increase in compensation	N/A	N/A
U.S. other postretirement plans:
Discount rate - service cost	3.43	2.65
Effective interest rate on benefit obligation	3.68	2.86
Expected long-term rate of return on assets	N/A	N/A
Average rate of increase in compensation	N/A	N/A
Non-U.S. pension plans:
Discount rate - service cost	2.55	2.71
Effective interest rate on benefit obligation	2.06	1.98
Expected long-term rate of return on assets	5.23	5.73
Average rate of increase in compensation	3.03	2.98

Defined benefit plan estimated future benefit payments [Text Block]

	Pension benefits				Other postretirement employee benefits
(in millions)
Year	U.S.		Non-U.S.
2020	$	20	$	20	$	10
2021	15		23		9
2022	14		23		9
2023	14		24		8
2024	14		24		7
2025-2029	62		137		25

Defined benefit plan effect of one percentage point change in assumed health care cost trend rates [Text Block]

	One Percentage Point
(in millions)	Increase		Decrease
Effect on other postretirement employee benefit obligation	$	5	$	(5	)
Effect on total service and interest cost components	$	—	$	—