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Fair Value Disclosures - Assets And Liabilities Measured On A Recurring Basis (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | $ 3,316 | $ 4,042
Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 3,316 | 4,042
Equity securities | 474 | 469
Total Assets | 3,902 | 4,628
Total liabilities | 127 | 226
Recurring basis | Foreign exchange contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | 109 | 117
Recurring basis | Commodity contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | 3 | (2)
Recurring basis | Interest rate contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | (101) | (191)
Recurring basis | Total return swap contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | (26) | (33)
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 | 68 | 68
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 | 68 | 68
Corporate bonds and other debt securities |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 2,423 | 3,170
Corporate bonds and other debt securities | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 2,423 | 3,170
Asset-backed securities |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 222 | 219
Asset-backed securities | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 222 | 219
U.S. governmental agency | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 465 | 443
Residential |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 2 | 2
Residential | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 2 | 2
Commercial |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 127 | 130
Commercial | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 127 | 130
Large capitalization value | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Equity securities | 267 | 261
Smaller company growth | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Equity securities | 39 | 41
REIT | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Equity securities | 168 | 167
Level 1 | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 9 | 10
Equity securities | 306 | 302
Total Assets | 315 | 312
Total liabilities | 0 | 0
Level 1 | Recurring basis | Foreign exchange contracts |  |
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 |  |
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 |  |
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 |  |
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 | 267 | 261
Level 1 | Smaller company growth | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Equity securities | 39 | 41
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 | 3,307 | 4,032
Equity securities | 0 | 0
Total Assets | 3,419 | 4,149
Total liabilities | 127 | 226
Level 2 | Recurring basis | Foreign exchange contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | 109 | 117
Level 2 | Recurring basis | Commodity contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | 3 | (2)
Level 2 | Recurring basis | Interest rate contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | (101) | (191)
Level 2 | Recurring basis | Total return swap contracts |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Derivate financial instruments - assets/liabilities | (26) | (33)
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 | 68 | 68
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 | 2,423 | 3,170
Level 2 | Asset-backed securities | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 222 | 219
Level 2 | U.S. governmental agency | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 465 | 443
Level 2 | Residential | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 2 | 2
Level 2 | Commercial | Recurring basis |  |
Assets and liabilities measured on a recurring and non-recurring basis at fair value |  |
Debt securities | 127 | 130
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 exchange contracts |  |
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 |  |
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 |  |
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 |  |
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 | 70 | 59
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 | 168 | 167
Total Assets | 168 | 167
Total liabilities | 0 | 0
Measured at NAV | Recurring basis | Foreign exchange contracts |  |
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 |  |
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 |  |
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 |  |
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 | $ 168 | $ 167

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