Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
Other income tax disclosures
Effect of unrecognized tax benefit on income tax expense	$ 30	$ 31	$ 30
Interest expense and penalties related to unrecognized income tax expense	$ (10)
Net accrued interest and penalties		13	$ 13
State
Operating loss carryforwards
State NOL carryforwards		4,050
Deferred income tax asset for State NOL carryforwards		195
State interest limitation carryforwards		556
Deferred income tax asset for State interest limitation carryforwards		23
Federal
Operating loss carryforwards
Federal NOL carryforwards		420
Deferred income tax asset for Federal NOL carryforwards		88
Federal interest limitation carryforwards		523
Deferred income tax asset for Federal interest limitation carryforwards		$ 110