Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal
Current	$ 0	$ 0	$ 12
Deferred	125	162	186
State and local
Current	12	22	4
Deferred	28	42	41
Foreign
Current	16	19	17
Deferred	16	(24)	(5)
Total income tax expense	$ 197	$ 221	$ 255