v3.25.4
SCHEDULE I — SUMMARY OF INVESTMENTS — OTHER THAN INVESTMENTS IN RELATED PARTIES (Details)
$ in Millions
Dec. 31, 2025
USD ($)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost $ 45,481
Fair Value 45,437
Amount Shown in Balance Sheet 45,429
Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 34,620
Fair Value 34,573
Amount Shown in Balance Sheet 34,573
Held-to-Maturity  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 573
Fair Value 576
Amount Shown in Balance Sheet 567
U.S. government agencies and corporations | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 845
Fair Value 830
Amount Shown in Balance Sheet 830
Obligations of U.S. states and political subdivisions | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 45
Fair Value 41
Amount Shown in Balance Sheet 41
Foreign government securities | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 9,913
Fair Value 9,882
Amount Shown in Balance Sheet 9,882
Foreign corporate securities | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 7,535
Fair Value 7,653
Amount Shown in Balance Sheet 7,653
Foreign corporate securities | Held-to-Maturity  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 79
Fair Value 84
Amount Shown in Balance Sheet 78
Asset-backed securities | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 5,094
Fair Value 5,077
Amount Shown in Balance Sheet 5,077
Asset-backed securities | Held-to-Maturity  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 166
Fair Value 169
Amount Shown in Balance Sheet 164
Asset-backed securities | Held-to-Maturity  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 328
Fair Value 322
Amount Shown in Balance Sheet 325
Agency commercial | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 404
Fair Value 412
Amount Shown in Balance Sheet 412
Non-agency commercial | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 1,151
Fair Value 1,121
Amount Shown in Balance Sheet 1,121
Agency residential | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 5,544
Fair Value 5,465
Amount Shown in Balance Sheet 5,465
Non-agency residential | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 1,689
Fair Value 1,721
Amount Shown in Balance Sheet 1,721
Foreign government securities | Available For Sale  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 2,400
Fair Value 2,371
Amount Shown in Balance Sheet 2,371
Equity securities - at fair value  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 179
Fair Value 180
Amount Shown in Balance Sheet 180
Short-term investments  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 2,994
Fair Value 2,994
Amount Shown in Balance Sheet 2,994
Other invested assets  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 5,796
Fair Value 5,796
Amount Shown in Balance Sheet 5,796
Cash  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 1,318
Fair Value 1,318
Amount Shown in Balance Sheet 1,318
Agency commercial | Held-to-Maturity  
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]  
Cost 0
Fair Value 0
Amount Shown in Balance Sheet $ 0