(Summary of Operating Loss And Tax Credit Carryforwards) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Operating Loss Carryforwards [Line Items]
Total	$ 1,364
Less: valuation allowance (a)	(1,119)	[1]
Total, net	245
2025 Through 2034
Operating Loss Carryforwards [Line Items]
Total	245
Less: valuation allowance (a)	(58)	[1]
Total, net	187
2035 Through 2044
Operating Loss Carryforwards [Line Items]
Total	626
Less: valuation allowance (a)	(612)	[1]
Total, net	14
Indefinite
Operating Loss Carryforwards [Line Items]
Total	493
Less: valuation allowance (a)	(449)	[1]
Total, net	44
U.S. federal and non-U.S. NOLs
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,003
U.S. federal and non-U.S. NOLs | 2025 Through 2034
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	3
U.S. federal and non-U.S. NOLs | 2035 Through 2044
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	603
U.S. federal and non-U.S. NOLs | Indefinite
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	397
State taxing jurisdiction NOLs (a)
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	37	[1]
State taxing jurisdiction NOLs (a) | 2025 Through 2034
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	28	[1]
State taxing jurisdiction NOLs (a) | 2035 Through 2044
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	9	[1]
State taxing jurisdiction NOLs (a) | Indefinite
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	0	[1]
U.S. federal, non- U.S. and state tax credit carryforwards (a)
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	183	[1]
U.S. federal, non- U.S. and state tax credit carryforwards (a) | 2025 Through 2034
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	73	[1]
U.S. federal, non- U.S. and state tax credit carryforwards (a) | 2035 Through 2044
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	14	[1]
U.S. federal, non- U.S. and state tax credit carryforwards (a) | Indefinite
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	96	[1]
U.S Federal and State Capital Loss Carryforwards
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	141	[1]
U.S Federal and State Capital Loss Carryforwards | 2025 Through 2034
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	141	[1]
U.S Federal and State Capital Loss Carryforwards | 2035 Through 2044
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	0	[1]
U.S Federal and State Capital Loss Carryforwards | Indefinite
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 0	[1]

[1] (a) State amounts are presented net of federal benefit.