Income Taxes - Reconciliation of Unrecognized Tax Benefits (Excluding Interest and Penalties) (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 beginning of year	$ 2	$ 2	$ 176
Reductions for tax positions of prior years	0	0	(182)
Settlements with tax authorities	0	0	(1)
Foreign currency translation	0	0	9
Balance at end of year	$ 2	$ 2	$ 2