Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2021	Dec. 31, 2022
Other income tax disclosures
Effect of unrecognized tax benefit on income tax expense	$ 28	$ 28	$ 28
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1	$ (10)
Net accrued interest and penalties	13		$ 13
State
Other income tax disclosures
State NOL carryforwards	2,723
Deferred income tax asset for State NOL carryforwards	115
State interest limitation carryforwards	487
Deferred income tax asset for State interest limitation carryforwards	19
Federal
Other income tax disclosures
Federal NOL carryforward	78
Deferred tax asset for Federal NOL carryforward	16
Federal interest limitation carryforwards	381
Deferred income tax asset for Federal interest limitation carryforwards	$ 80