| Composition of Investment Portfolio by Major Security Type |
The composition of the investment portfolio by major security type and our outstanding debt was: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value | | | | (millions) | Level 1 | | Level 2 | | Level 3 | | Total | | Cost | | March 31, 2026 | | | | | | | | | | | Fixed maturities: | | | | | | | | | | | U.S. government | $ | 44,417 | | | $ | 0 | | | $ | 0 | | | $ | 44,417 | | | $ | 44,676 | | | State and local government | 0 | | | 3,087 | | | 0 | | | 3,087 | | | 3,135 | | | Foreign government | 0 | | | 16 | | | 0 | | | 16 | | | 16 | | | Corporate and other debt | 0 | | | 20,982 | | | 4 | | | 20,986 | | | 20,994 | | | Residential mortgage-backed | 0 | | | 4,136 | | | 0 | | | 4,136 | | | 4,127 | | | Commercial mortgage-backed | 0 | | | 6,991 | | | 0 | | | 6,991 | | | 7,228 | | | Other asset-backed | 0 | | | 8,199 | | | 0 | | | 8,199 | | | 8,232 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total fixed maturities | 44,417 | | | 43,411 | | | 4 | | | 87,832 | | | 88,408 | | | Short-term investments | 2,072 | | | 54 | | | 0 | | | 2,126 | | | 2,126 | | | Total available-for-sale securities | 46,489 | | | 43,465 | | | 4 | | | 89,958 | | | 90,534 | | | Equity securities: | | | | | | | | | | | | | | | | | | | | | Nonredeemable preferred stocks | 0 | | | 191 | | | 49 | | | 240 | | | 259 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Common equities: | | | | | | | | | | | Common stocks | 3,891 | | | 0 | | | 5 | | | 3,896 | | | 802 | | | Other risk investments | 0 | | | 0 | | | 37 | | | 37 | | | 37 | | | Subtotal common equities | 3,891 | | | 0 | | | 42 | | | 3,933 | | | 839 | | | Total equity securities | 3,891 | | | 191 | | | 91 | | | 4,173 | | | 1,098 | | | Total portfolio | $ | 50,380 | | | $ | 43,656 | | | $ | 95 | | | $ | 94,131 | | | $ | 91,632 | | | Debt | $ | 0 | | | $ | 7,728 | | | $ | 0 | | | $ | 7,728 | | | $ | 8,386 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value | | | | (millions) | Level 1 | | Level 2 | | Level 3 | | Total | | Cost | | March 31, 2025 | | | | | | | | | | | Fixed maturities: | | | | | | | | | | | U.S. government | $ | 44,318 | | | $ | 0 | | | $ | 0 | | | $ | 44,318 | | | $ | 44,523 | | | State and local government | 0 | | | 2,604 | | | 0 | | | 2,604 | | | 2,688 | | | Foreign government | 0 | | | 16 | | | 0 | | | 16 | | | 16 | | | Corporate and other debt | 0 | | | 16,011 | | | 5 | | | 16,016 | | | 16,047 | | | Residential mortgage-backed | 0 | | | 2,183 | | | 0 | | | 2,183 | | | 2,172 | | | Commercial mortgage-backed | 0 | | | 4,825 | | | 0 | | | 4,825 | | | 5,144 | | | Other asset-backed | 0 | | | 7,139 | | | 0 | | | 7,139 | | | 7,164 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total fixed maturities | 44,318 | | | 32,778 | | | 5 | | | 77,101 | | | 77,754 | | | Short-term investments | 2,595 | | | 0 | | | 0 | | | 2,595 | | | 2,595 | | | Total available-for-sale securities | 46,913 | | | 32,778 | | | 5 | | | 79,696 | | | 80,349 | | | Equity securities: | | | | | | | | | | | | | | | | | | | | | Nonredeemable preferred stocks | 0 | | | 524 | | | 60 | | | 584 | | | 608 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Common equities: | | | | | | | | | | | Common stocks | 3,344 | | | 0 | | | 9 | | | 3,353 | | | 743 | | | Other risk investments | 0 | | | 0 | | | 31 | | | 31 | | | 31 | | | Subtotal common equities | 3,344 | | | 0 | | | 40 | | | 3,384 | | | 774 | | | Total equity securities | 3,344 | | | 524 | | | 100 | | | 3,968 | | | 1,382 | | | Total portfolio | $ | 50,257 | | | $ | 33,302 | | | $ | 105 | | | $ | 83,664 | | | $ | 81,731 | | | Debt | $ | 0 | | | $ | 6,247 | | | $ | 0 | | | $ | 6,247 | | | $ | 6,894 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value | | | | (millions) | Level 1 | | Level 2 | | Level 3 | | Total | | Cost | | December 31, 2025 | | | | | | | | | | | Fixed maturities: | | | | | | | | | | | U.S. government | $ | 43,298 | | | $ | 0 | | | $ | 0 | | | $ | 43,298 | | | $ | 43,114 | | | State and local government | 0 | | | 3,303 | | | 0 | | | 3,303 | | | 3,342 | | | Foreign government | 0 | | | 17 | | | 0 | | | 17 | | | 17 | | | Corporate and other debt | 0 | | | 19,987 | | | 4 | | | 19,991 | | | 19,773 | | | Residential mortgage-backed | 0 | | | 3,175 | | | 0 | | | 3,175 | | | 3,152 | | | Commercial mortgage-backed | 0 | | | 5,973 | | | 0 | | | 5,973 | | | 6,194 | | | Other asset-backed | 0 | | | 7,109 | | | 0 | | | 7,109 | | | 7,112 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total fixed maturities | 43,298 | | | 39,564 | | | 4 | | | 82,866 | | | 82,704 | | | Short-term investments | 9,810 | | | 195 | | | 0 | | | 10,005 | | | 10,005 | | | Total available-for-sale securities | 53,108 | | | 39,759 | | | 4 | | | 92,871 | | | 92,709 | | | Equity securities: | | | | | | | | | | | | | | | | | | | | | Nonredeemable preferred stocks | 0 | | | 344 | | | 60 | | | 404 | | | 419 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Common equities: | | | | | | | | | | | Common stocks | 4,057 | | | 0 | | | 5 | | | 4,062 | | | 783 | | | Other risk investments | 0 | | | 0 | | | 36 | | | 36 | | | 36 | | | Subtotal common equities | 4,057 | | | 0 | | | 41 | | | 4,098 | | | 819 | | | Total equity securities | 4,057 | | | 344 | | | 101 | | | 4,502 | | | 1,238 | | | Total portfolio | $ | 57,165 | | | $ | 40,103 | | | $ | 105 | | | $ | 97,373 | | | $ | 93,947 | | | Debt | $ | 0 | | | $ | 6,345 | | | $ | 0 | | | $ | 6,345 | | | $ | 6,897 | |
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