v3.26.3
Equity (Schedule of Reclassifications out of AOCI) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Income Tax Expense (Benefit) $ (167) $ (65) $ (418) $ (306)
Net income 456 253 1,248 719
Unrealized Appreciation Depreciation Of Investments [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Investment related gains (losses), net [1] (116) 8 (340) (127)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest (131) (8) (386) (175)
Income Tax Expense (Benefit) 51 (9) 114 25
Net income (80) (17) (272) (150)
Amortization Of Unrealized Pension And Postretirement Benefits [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Prior service cost [2] 0 0 1 1
Actuarial gains/(losses) [2] (3) (1) (9) (1)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest (3) (1) (8) 0
Income Tax Expense (Benefit) 1 0 2 0
Net income (2) (1) (6) 0
Amounts Reclassified From AOCI [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Net income (82) (18) (278) (150)
Currency Swap [Member] | Unrealized Appreciation Depreciation Of Investments [Member] | Unrealized Gains Losses On Available For Sale Securities [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Cash Flow Derivative Gains Losses Reclassified Into Income From AOCI (16) (17) (50) (51)
Interest Rate Options [Member] | Unrealized Appreciation Depreciation Of Investments [Member] | Unrealized Gains Losses On Available For Sale Securities [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Cash Flow Derivative Gains Losses Reclassified Into Income From AOCI [1] $ 1 $ 1 $ 4 $ 3
[1] See Note 11 – “Derivative Instruments” for additional information on cash flow hedges.
[2] These AOCI components are included in the computation of net periodic benefit costs.