Income Taxes - Reconciliation Rollforward of Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of gross unrecognized tax benefits
Beginning balance	$ 125	$ 110	$ 100
Additions based on tax positions related to the current year	12	21	11
Reductions based on tax positions related to the current year	(1)	(1)	(1)
Additions for tax positions of prior years	5	5	10
Reductions for tax positions of prior years	(1)	(8)	(4)
Reductions due to lapse of statute of limitations	0	(1)	(5)
Audit settlements	(2)	(1)	(1)
Ending balance	138	125	110
Unrecognized tax benefits, net of federal tax benefits, that would affect the effective tax rate if recognized	106	95	80
Estimated decrease in gross amount of unrecognized tax benefits reasonably possible in next 12 months	58
Interest and penalties related to unrecognized tax benefits
Interest and penalties expense (credit)	4	0	$ 2
Payable related to accrued interest and penalties	$ 14	$ 10