Retirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Actual contribution to defined benefit pension plans	$ 5
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	10
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	20
Other Postretirement Benefits Plan [Member]
Components of net periodic benefit cost:
Service cost	0	$ 0
Interest cost	1	1
Expected return on plan assets	0	0
Amortization of unrecognized prior service credit	(1)	(1)
Amortization of unrecognized loss	0	0
Net periodic benefit (income) cost	0	0
United States | Pension Plan [Member]
Components of net periodic benefit cost:
Service cost	0	0
Interest cost	1	2
Expected return on plan assets	(3)	(3)
Amortization of unrecognized prior service credit	0	0
Amortization of unrecognized loss	1	1
Net periodic benefit (income) cost	(1)	0
Non-US | Pension Plan [Member]
Components of net periodic benefit cost:
Service cost	5	5
Interest cost	2	3
Expected return on plan assets	(6)	(5)
Amortization of unrecognized prior service credit	0	0
Amortization of unrecognized loss	3	2
Net periodic benefit (income) cost	$ 4	$ 5