Employee Benefit Plans - Change in Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	$ 1,106	$ 1,118	$ 1,058
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	47	99
Company contributions	17	19
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(60)	(111)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	(16)	53
Plan participant contributions	0	0
U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	1,379	1,528	1,377
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	(32)	187
Company contributions	0	70
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(117)	(106)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	0	0
Plan participant contributions	0	0
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Amount	2,485	2,646	$ 2,435
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	15	286
Company contributions	17	89
Defined Benefit Plan, Benefit Obligation, Benefits Paid	(177)	(217)
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)	(16)	53
Plan participant contributions	$ 0	$ 0