Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Unrecognized Tax Benefits
Unrecognized tax benefits	$ 73	$ 29	$ 30
Activity for unrecognized tax benefits [Roll Forward]
Balance at beginning of period	29	30	28
Tax positions related to current year additions	43	0	1
Additions for tax positions of prior years	1	0	2
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	0	(1)	0
Reductions due to lapse of statute of limitations on tax positions	0	0	(1)
Balance at end of period	$ 73	$ 29	$ 30