Income Taxes (Details 6) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of unrecognized income tax benefits
Unrecognized tax benefits, beginning of year	$ 131	$ 119	$ 119
Additions for income tax positions related to current year	0	2	0
Additions for income tax positions related to prior year	0	10	0
Reductions for income tax positions related to settlements	4	0	0
Unrecognized tax benefits, end of year	127	131	119
Unrecognized tax benefits that, if recognized, would impact the effective tax rate	127	131	119
Recognized interest and penalties	(1)
Accrued interest and penalties	$ 2	1
Maximum
Reconciliation of unrecognized income tax benefits
Recognized interest and penalties		$ 1	$ (1)