v3.25.4
Income Taxes Summary of Changes to Valuation Allowance on Deferred Tax Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Valuation Allowance [Line Items]      
Deferred tax assets, valuation allowance, beginning of period $ 871 $ 758 $ 114
Changes to Related Gross Deferred Tax Assets 100 112 320
Change/(Release) 3 1 324
Deferred tax assets, valuation allowance, end of period 974 871 758
U.S. foreign tax credit carryforward      
Valuation Allowance [Line Items]      
Deferred tax assets, valuation allowance, beginning of period 736 635 0
Changes to Related Gross Deferred Tax Assets 66 101 308
Change/(Release) 0 0 327
Deferred tax assets, valuation allowance, end of period 802 736 635
Net operating and capital losses      
Valuation Allowance [Line Items]      
Deferred tax assets, valuation allowance, beginning of period 135 123 114
Changes to Related Gross Deferred Tax Assets 34 11 12
Change/(Release) 3 1 (3)
Deferred tax assets, valuation allowance, end of period $ 172 $ 135 $ 123