v3.25.4
SCHEDULE III — SUPPLEMENTARY INSURANCE INFORMATION (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred Acquisition Costs $ 1,546 $ 1,461 $ 1,247
Reserve for Losses and Loss Adjustment Expenses 34,312 29,889 24,604
Unearned Premium Reserves 7,275 7,324 6,622
Premiums Earned 15,560 15,187 13,443
Net Investment Income 2,124 1,954 1,434
Incurred Loss and Loss Adjustment Expenses 10,859 11,305 8,427
Amortization of Deferred Acquisition Costs 3,461 3,300 2,952
Other Operating Expenses 1,029 938 846
Net Written Premium 15,513 15,814 14,730
Reinsurance      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred Acquisition Costs 1,258 1,185 967
Reserve for Losses and Loss Adjustment Expenses 22,730 19,708 17,327
Unearned Premium Reserves 4,747 4,621 4,009
Premiums Earned 11,732 11,412 9,799
Net Investment Income 1,376 1,255 984
Incurred Loss and Loss Adjustment Expenses 7,517 7,103 5,690
Amortization of Deferred Acquisition Costs 2,952 2,837 2,520
Other Operating Expenses 291 290 254
Net Written Premium 11,791 11,969 10,802
Insurance      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred Acquisition Costs 280 270 271
Reserve for Losses and Loss Adjustment Expenses 10,203 8,841 6,338
Unearned Premium Reserves 2,495 2,635 2,504
Premiums Earned 3,718 3,579 3,420
Net Investment Income 658 605 391
Incurred Loss and Loss Adjustment Expenses 3,050 3,622 2,471
Amortization of Deferred Acquisition Costs 488 439 410
Other Operating Expenses 721 615 556
Net Written Premium 3,638 3,678 3,704
Other      
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]      
Deferred Acquisition Costs 8 6 9
Reserve for Losses and Loss Adjustment Expenses 1,379 1,340 939
Unearned Premium Reserves 32 68 109
Premiums Earned 111 197 225
Net Investment Income 90 94 59
Incurred Loss and Loss Adjustment Expenses 292 580 266
Amortization of Deferred Acquisition Costs 21 24 22
Other Operating Expenses 17 33 35
Net Written Premium $ 84 $ 167 $ 225