Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at the beginning of the year	$ 136	$ 131	$ 134
Additions to tax positions related to prior years	0	0	0
Reductions to tax positions related to prior years	(15)	(4)	(14)
Additions to tax positions related to current year	15	9	11
Balance at the end of the year	$ 136	$ 136	$ 131