Provision (Benefit) for Income Taxes Textuals (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2022
Income Tax Contingency [Line Items]
Foreign income (loss) in Income from continuing operations before income taxes		$ (2)	$ (1)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 113	71	6
Deferred Tax Assets, Charitable Contribution Carryforwards	25
Deferred Tax Assets, Tax Credit Carryforwards	705
Income Taxes Paid	13
Proceeds from Income Tax Refunds		45	40
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	91	140		$ 70
Tax Adjustments, Settlements, and Unusual Provisions	45
Total interest and penalties recognized as part of income tax provision	(3)	(1)	$ (1)
Total interest and penalties accrued as uncertain tax positions	0	$ 4
Settlement with Taxing Authority
Income Tax Contingency [Line Items]
Proceeds from Income Tax Refunds	7
Less Than
Income Tax Contingency [Line Items]
Foreign income (loss) in Income from continuing operations before income taxes	$ 1