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Investments - Unrealized Loss Position Maturities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value |  |
Less than one year | $ 1,194 |
One year through five years | 5,709 |
After five years through ten years | 3,929 |
Greater than ten years | 3,360 |
Fair Value | 18,492 | $ 7,384
Unrealized Losses |  |
Less than one year | 14 |
One year through five years | 403 |
After five years through ten years | 511 |
Greater than ten years | 532 |
Unrealized Losses | 1,840 | 106
Residential mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 721 |
Fair Value | 721 | 629
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 89 |
Unrealized Losses | 89 | 10
Commercial mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 992 |
Fair Value | 992 | 574
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 155 |
Unrealized Losses | 155 | 12
Other asset-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 2,587 |
Fair Value | 2,587 | 2,061
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 136 |
Unrealized Losses | 136 | $ 13
Supporting experience- rated products |  |
Fair Value |  |
Less than one year | 33 |
One year through five years | 126 |
After five years through ten years | 142 |
Greater than ten years | 207 |
Fair Value | 568 |
Unrealized Losses |  |
Less than one year | 0 |
One year through five years | 5 |
After five years through ten years | 17 |
Greater than ten years | 31 |
Unrealized Losses | 59 |
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 | 32 |
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 | 2 |
Supporting remaining products |  |
Fair Value |  |
Less than one year | 1,161 |
One year through five years | 5,583 |
After five years through ten years | 3,787 |
Greater than ten years | 3,153 |
Fair Value | 17,924 |
Unrealized Losses |  |
Less than one year | 14 |
One year through five years | 398 |
After five years through ten years | 494 |
Greater than ten years | 501 |
Unrealized Losses | 1,781 |
Supporting remaining products | Residential mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 710 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 88 |
Supporting remaining products | Commercial mortgage-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 960 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 152 |
Supporting remaining products | Other asset-backed securities |  |
Fair Value |  |
Debt securities, maturity, without single maturity date, fair value | 2,570 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | $ 134 |

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