Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of period	$ 18	$ 15	$ 16	$ 15
Gross increases - tax positions in current period	3	5	5	5
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	0	5	0	5
Balance, end of period	$ 21	$ 15	$ 21	$ 15