v3.26.3
Fair Value Disclosures - Assets And Liabilities Measured On A Recurring Basis (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities $ 3,994 $ 3,549
Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 3,994 3,549
Equity securities 568 522
Total assets 4,652 4,283
Total liabilities 261 41
Recurring basis | Foreign currency contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 50 204
Recurring basis | Commodity contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 40 8
Recurring basis | Interest rate contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities (248) (40)
Recurring basis | Total return swap contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities (13) (1)
U.S. treasury bonds    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 9 10
U.S. treasury bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 9 10
Other U.S. and non-U.S. government bonds    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 59 74
Other U.S. and non-U.S. government bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 59 74
Corporate bonds and other debt securities    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 2,870 2,480
Corporate bonds and other debt securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 2,870 2,480
Asset-backed securities    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 319 273
Asset-backed securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 319 273
U.S. governmental agency | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 583 572
Residential    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 4 1
Residential | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 4 1
Commercial    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 150 139
Commercial | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 150 139
Large capitalization value | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 322 283
Smaller company growth | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 67 65
REIT | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 179 174
Level 1 | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 9 10
Equity securities 389 348
Total assets 398 358
Total liabilities 0 0
Level 1 | Recurring basis | Foreign currency contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 1 | Recurring basis | Commodity contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 1 | Recurring basis | Interest rate contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 1 | Recurring basis | Total return swap contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 1 | U.S. treasury bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 9 10
Level 1 | Other U.S. and non-U.S. government bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | Corporate bonds and other debt securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | Asset-backed securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | U.S. governmental agency | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | Residential | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | Commercial | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 1 | Large capitalization value | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 322 283
Level 1 | Smaller company growth | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 67 65
Level 1 | REIT | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 2 | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 3,985 3,539
Equity securities 0 0
Total assets 4,075 3,751
Total liabilities 261 41
Level 2 | Recurring basis | Foreign currency contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 50 204
Level 2 | Recurring basis | Commodity contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 40 8
Level 2 | Recurring basis | Interest rate contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities (248) (40)
Level 2 | Recurring basis | Total return swap contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities (13) (1)
Level 2 | U.S. treasury bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 2 | Other U.S. and non-U.S. government bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 59 74
Level 2 | Corporate bonds and other debt securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 2,870 2,480
Level 2 | Asset-backed securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 319 273
Level 2 | U.S. governmental agency | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 583 572
Level 2 | Residential | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 4 1
Level 2 | Commercial | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 150 139
Level 2 | Large capitalization value | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 2 | Smaller company growth | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 2 | REIT | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 3 | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Equity securities 0 0
Total assets 0 0
Total liabilities 0 0
Level 3 | Recurring basis | Foreign currency contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 3 | Recurring basis | Commodity contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 3 | Recurring basis | Interest rate contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 3 | Recurring basis | Total return swap contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Level 3 | Nonrecurring basis | Financial Products    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Loans carried at fair value 64 63
Level 3 | U.S. treasury bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Other U.S. and non-U.S. government bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Corporate bonds and other debt securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Asset-backed securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | U.S. governmental agency | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Residential | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Commercial | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Level 3 | Large capitalization value | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 3 | Smaller company growth | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Level 3 | REIT | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Measured at NAV | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Equity securities 179 174
Total assets 179 174
Total liabilities 0 0
Measured at NAV | Recurring basis | Foreign currency contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Measured at NAV | Recurring basis | Commodity contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Measured at NAV | Recurring basis | Interest rate contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Measured at NAV | Recurring basis | Total return swap contracts - net    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Derivate financial instruments - assets/liabilities 0 0
Measured at NAV | U.S. treasury bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Other U.S. and non-U.S. government bonds | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Corporate bonds and other debt securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Asset-backed securities | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | U.S. governmental agency | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Residential | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Commercial | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Debt securities 0 0
Measured at NAV | Large capitalization value | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Measured at NAV | Smaller company growth | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities 0 0
Measured at NAV | REIT | Recurring basis    
Assets and liabilities measured on a recurring and non-recurring basis at fair value    
Equity securities $ 179 $ 174