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Investments (Amortized Cost and Fair Value of Fixed Maturities by Contractual Maturities) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Available-for-sale, Amortized Cost |  |  |
Due in one year or less |  | $ 8,999 |
Due after one year through five years |  | 50,907 |
Due after five years through ten years(1) |  | 63,462 |
Due after ten years |  | 185,707 |
Fixed Maturities, available-for-sale, Amortized Cost |  | 334,598 | $ 335,447
Available-for-sale, Fair Value |  |  |
Due in one year or less |  | 9,130 |
Due after one year through five years |  | 50,417 |
Due after five years through ten years(1) |  | 63,184 |
Due after ten years |  | 168,838 |
Fixed Maturities, available-for-sale, at fair value | [1] | 316,321 | 307,719
Amortized Cost |  | 0 | 1,298
U.S. private corporate securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Fixed Maturities, available-for-sale, Amortized Cost |  | 42,801 | 39,867
Available-for-sale, Fair Value |  |  |
Fixed Maturities, available-for-sale, at fair value |  | 41,020 | 36,879
Asset-backed securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Debt Maturities, without single maturity date |  | 12,514 |
Fixed Maturities, available-for-sale, Amortized Cost |  | 12,514 | 12,972
Available-for-sale, Fair Value |  |  |
Debt Maturities, without single maturity date |  | 12,595 |
Fixed Maturities, available-for-sale, at fair value |  | 12,595 | 12,851
Commercial mortgage-backed securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Debt Maturities, without single maturity date |  | 10,571 |
Fixed Maturities, available-for-sale, Amortized Cost |  | 10,571 | 11,497
Available-for-sale, Fair Value |  |  |
Debt Maturities, without single maturity date |  | 9,892 |
Fixed Maturities, available-for-sale, at fair value |  | 9,892 | 10,655
Residential mortgage-backed securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Debt Maturities, without single maturity date |  | 2,438 |
Fixed Maturities, available-for-sale, Amortized Cost |  | 2,438 | 2,613
Available-for-sale, Fair Value |  |  |
Debt Maturities, without single maturity date |  | 2,265 |
Fixed Maturities, available-for-sale, at fair value |  | 2,265 | 2,417
Amortized Cost |  | 0 | 143
Prudential Netting Agreement | U.S. private corporate securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Fixed Maturities, available-for-sale, Amortized Cost |  | 12,370 | 8,040
Available-for-sale, Fair Value |  |  |
Fixed Maturities, available-for-sale, at fair value |  | 12,370 | 8,040
Fixed maturities | Prudential Netting Agreement | U.S. private corporate securities |  |  |
Available-for-sale, Amortized Cost |  |  |
Fixed Maturities, available-for-sale, Amortized Cost |  | 12,370 | 8,040
Available-for-sale, Fair Value |  |  |
Fixed Maturities, available-for-sale, at fair value |  | $ 12,370 | $ 8,040
[1] | See Note 4 for details of balances associated with variable interest entities.

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