Employee Benefit Plans - U.S and International Subsidiary Savings Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. savings plan
Defined Benefit Plan Disclosure [Line Items]
Expense for the U.S. and international subsidiary savings plan	$ 16	$ 19	$ 21
International subsidiary savings plans
Defined Benefit Plan Disclosure [Line Items]
Expense for the U.S. and international subsidiary savings plan	$ 14	$ 13	$ 16