v3.25.0.1
Income Taxes (Deferred Tax Valuation Allowance) (Details) - Valuation Allowance of Deferred Tax Assets - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Movement in Deferred Tax Valuation Allowances [Roll Forward]      
Balance at beginning of year $ 49 $ 44 $ 44
Additions charged to provision for income taxes 6 3 2
Deferred tax assets realized or written-off 0 0 (6)
Other, net (4) 2 4
Balance at end of year $ 51 $ 49 $ 44