Income Taxes (Jurisdictional Components of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Income Taxes (Jurisdictional components of deferred taxes)
Deferred Tax Assets, Gross	$ 10	$ 11
Valuation allowances	(2)	0
Net deferred income tax assets (liabilities)	8	11
U.S. Federal [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	1,500
Deferred Tax Assets, Gross	26	25
Valuation allowances	(1)	0
Net deferred income tax assets (liabilities)	25	25
State and Local Jurisdiction [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	500
Deferred Tax Assets, Gross	1	1
Valuation allowances	0	0
Net deferred income tax assets (liabilities)	1	1
Foreign Tax Authority [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	32
Deferred Tax Assets, Gross	17	15
Valuation allowances	(1)	0
Deferred Tax Liabilities, Net	(18)	$ (15)
Share-based Payment Arrangement [Member]
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	$ 237