v3.26.3
Accumulated Other Comprehensive Income Loss - Reclassifications from AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net realized losses $ (116) $ (17) $ (104) $ (85)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 1,583 1,243 3,805 3,141
Income tax expense 321 222 759 598
Net income 1,323 1,080 3,477 2,705
Net Investment Income 850 755 2,384 2,065
Interest Expense 50 50 150 150
Reclassification out of Accumulated Other Comprehensive Income        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net income (22) (21) (62) (56)
Reclassification out of Accumulated Other Comprehensive Income | Net Unrealized Gain on Securities        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net realized losses (22) (21) (60) (57)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest (22) (21) (60) (57)
Income tax expense (5) (4) (13) (12)
Net income (17) (17) (47) (45)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest 5 3 13 10
Income tax expense 1 1 3 2
Net income 4 2 10 8
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent | Interest rate swaps        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net Investment Income 0 (3) (1) (7)
Interest Expense 2 3 6 9
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent | Currency Swap [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Net Investment Income 3 3 8 8
Reclassification out of Accumulated Other Comprehensive Income | Amortization of prior service credit        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Insurance operating costs and other expenses 2 2 5 5
Reclassification out of Accumulated Other Comprehensive Income | Amortization of actuarial loss        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Insurance operating costs and other expenses (13) (10) (37) (29)
Reclassification out of Accumulated Other Comprehensive Income | Pension and Other Postretirement Plan Adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest (11) (8) (32) (24)
Income tax expense (2) (2) (7) (5)
Net income $ (9) $ (6) $ (25) $ (19)