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Investments - Unrealized Loss Position Maturities (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value |  |
Less than one year | $ 1,222 |
One year through five years | 5,363 |
After five years through ten years | 3,291 |
Greater than ten years | 3,032 |
Fair Value | 16,946 | $ 18,492
Unrealized Losses |  |
Less than one year | 18 |
One year through five years | 333 |
After five years through ten years | 358 |
Greater than ten years | 377 |
Unrealized Losses | 1,393 | 1,840
Residential mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 723 |
Fair Value | 723 | 721
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 71 |
Unrealized Losses | 71 | 89
Commercial mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 932 |
Fair Value | 932 | 992
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 146 |
Unrealized Losses | 146 | 155
Other asset-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 2,383 |
Fair Value | 2,383 | 2,587
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 90 |
Unrealized Losses | 90 | $ 136
Supporting experience-rated products |  |
Fair Value |  |
Less than one year | 22 |
One year through five years | 125 |
After five years through ten years | 120 |
Greater than ten years | 197 |
Fair Value | 515 |
Unrealized Losses |  |
Less than one year | 0 |
One year through five years | 3 |
After five years through ten years | 12 |
Greater than ten years | 20 |
Unrealized Losses | 40 |
Supporting experience-rated products | Residential mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 11 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 1 |
Supporting experience-rated products | Commercial mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 23 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 3 |
Supporting experience-rated products | Other asset-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 17 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 1 |
Supporting remaining products |  |
Fair Value |  |
Less than one year | 1,200 |
One year through five years | 5,238 |
After five years through ten years | 3,171 |
Greater than ten years | 2,835 |
Fair Value | 16,431 |
Unrealized Losses |  |
Less than one year | 18 |
One year through five years | 330 |
After five years through ten years | 346 |
Greater than ten years | 357 |
Unrealized Losses | 1,353 |
Supporting remaining products | Residential mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 712 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 70 |
Supporting remaining products | Commercial mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 909 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 143 |
Supporting remaining products | Other asset-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 2,366 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | $ 89 |

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