Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of Unrecognized Tax Benefits, excluding interest and penalties:
Balance, beginning of year	$ 26	$ 3
Increases related to tax positions of prior years	0	26
Decreases related to tax positions of prior years	0	(3)
Lapse of statute of limitations	(1)	0
Balance, end of year	$ 25	$ 26