Pension, Savings and Other Postretirement Benefit Plans - Defined Benefit Pension Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible List]	Pension Plan	Pension Plan	Pension Plan	Pension Plan
Service cost	$ 4	$ 2	$ 7	$ 3
Interest cost	29	22	60	42
Expected return on plan assets	(53)	(46)	(105)	(88)
Amortization of net losses	25	26	51	54
Net periodic pension cost	5	4	13	11
Net curtailments/settlements/termination benefits	18	19	18	19
Total defined benefit pension cost	$ 23	$ 23	$ 31	$ 30
Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible List]	Pension Plan	Pension Plan	Pension Plan	Pension Plan
Service cost	$ 6	$ 8	$ 12	$ 15
Interest cost	16	11	32	22
Expected return on plan assets	(17)	(12)	(35)	(22)
Amortization of prior service cost	1	1	1	1
Amortization of net losses	5	9	11	17
Total defined benefit pension cost	$ 11	$ 17	$ 21	$ 33