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Fair Value (Recurring Fair Value Measurements) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | $ 276,780 | $ 340,274
Equity securities | 1,684 | 1,269
Unit-linked and FVO Securities (1) | 9,668 | 12,142
Short-term investments (2) | 4,935 | 7,176
Residential mortgage loans — FVO | 83,763 | 79,353
Derivative assets | 11,411 | 10,466
Separate account assets | 146,038 | 179,873
Liabilities [Abstract] |  |
Derivative liabilities | 6,975 | 3,852
Embedded derivatives within liability host contracts (4) | 578 | 649
Separate account liabilities | 146,038 | 179,873
Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 127
Recurring |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 276,780 | 340,274
Equity securities | 1,684 | 1,269
Unit-linked and FVO Securities (1) | 9,668 | 12,142
Short-term investments (2) | 4,573 | 6,560
Other investments | 1,132 | 959
Derivative assets | 11,411 | 10,466
Embedded derivatives within asset host contracts | 29 | 38
Separate account assets | 146,038 | 179,873
Total assets (6) | 451,315 | 551,708
Liabilities [Abstract] |  |
Derivative liabilities | 6,975 | 3,852
Embedded derivatives within liability host contracts (4) | 578 | 649
Total liabilities | 7,594 | 4,526
Recurring | Interest rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 4,572 | 6,678
Liabilities [Abstract] |  |
Derivative liabilities | 3,558 | 281
Recurring | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 5,888 | 2,554
Liabilities [Abstract] |  |
Derivative liabilities | 2,870 | 2,920
Recurring | Credit contracts |  |
Assets [Abstract] |  |
Derivative assets | 151 | 190
Liabilities [Abstract] |  |
Derivative liabilities | 107 | 125
Recurring | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 800 | 1,044
Liabilities [Abstract] |  |
Derivative liabilities | 440 | 526
Recurring | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 41 | 25
Recurring | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 127
Recurring | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 80,030 | 93,034
Recurring | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 46,747 | 61,609
Recurring | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 52,572 | 63,640
Recurring | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 32,229 | 46,599
Recurring | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 26,165 | 30,404
Recurring | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 16,822 | 18,569
Recurring | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 12,152 | 14,212
Recurring | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 10,063 | 12,207
Recurring | Level 1 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 15,959 | 25,489
Equity securities | 1,293 | 931
Unit-linked and FVO Securities (1) | 7,101 | 9,173
Short-term investments (2) | 3,830 | 5,607
Other investments | 0 | 0
Derivative assets | 18 | 16
Embedded derivatives within asset host contracts | 0 | 0
Separate account assets | 65,107 | 76,312
Total assets (6) | 93,308 | 117,528
Liabilities [Abstract] |  |
Derivative liabilities | 5 | 7
Embedded derivatives within liability host contracts (4) | 0 | 0
Total liabilities | 13 | 14
Recurring | Level 1 | Interest rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 2 | 4
Liabilities [Abstract] |  |
Derivative liabilities | 1 | 0
Recurring | Level 1 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 8 | 0
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 2
Recurring | Level 1 | Credit contracts |  |
Assets [Abstract] |  |
Derivative assets | 0 | 0
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 0
Recurring | Level 1 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 8 | 12
Liabilities [Abstract] |  |
Derivative liabilities | 4 | 5
Recurring | Level 1 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 8 | 7
Recurring | Level 1 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 0
Recurring | Level 1 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 15,955 | 25,482
Recurring | Level 1 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 4 | 7
Recurring | Level 1 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 2 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 232,048 | 283,388
Equity securities | 132 | 187
Unit-linked and FVO Securities (1) | 1,780 | 2,068
Short-term investments (2) | 686 | 950
Other investments | 206 | 61
Derivative assets | 11,094 | 10,326
Embedded derivatives within asset host contracts | 0 | 0
Separate account assets | 79,703 | 101,424
Total assets (6) | 325,649 | 398,404
Liabilities [Abstract] |  |
Derivative liabilities | 6,501 | 3,569
Embedded derivatives within liability host contracts (4) | 0 | 0
Total liabilities | 6,516 | 3,581
Recurring | Level 2 | Interest rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 4,570 | 6,577
Liabilities [Abstract] |  |
Derivative liabilities | 3,153 | 259
Recurring | Level 2 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 5,670 | 2,551
Liabilities [Abstract] |  |
Derivative liabilities | 2,820 | 2,676
Recurring | Level 2 | Credit contracts |  |
Assets [Abstract] |  |
Derivative assets | 69 | 173
Liabilities [Abstract] |  |
Derivative liabilities | 92 | 113
Recurring | Level 2 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 785 | 1,025
Liabilities [Abstract] |  |
Derivative liabilities | 436 | 521
Recurring | Level 2 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 15 | 12
Recurring | Level 2 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 0
Recurring | Level 2 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 67,578 | 81,266
Recurring | Level 2 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 46,644 | 61,518
Recurring | Level 2 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 40,623 | 49,973
Recurring | Level 2 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 16,274 | 21,117
Recurring | Level 2 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 24,515 | 27,270
Recurring | Level 2 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 14,895 | 16,707
Recurring | Level 2 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 12,152 | 14,212
Recurring | Level 2 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 9,367 | 11,325
Recurring | Level 3 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 28,773 | 31,397
Equity securities | 259 | 151
Unit-linked and FVO Securities (1) | 787 | 901
Short-term investments (2) | 57 | 3
Other investments | 926 | 898
Derivative assets | 299 | 124
Embedded derivatives within asset host contracts | 29 | 38
Separate account assets | 1,228 | 2,137
Total assets (6) | 32,358 | 35,776
Liabilities [Abstract] |  |
Derivative liabilities | 469 | 276
Embedded derivatives within liability host contracts (4) | 578 | 649
Total liabilities | 1,065 | 931
Recurring | Level 3 | Interest rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 0 | 97
Liabilities [Abstract] |  |
Derivative liabilities | 404 | 22
Recurring | Level 3 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 210 | 3
Liabilities [Abstract] |  |
Derivative liabilities | 50 | 242
Recurring | Level 3 | Credit contracts |  |
Assets [Abstract] |  |
Derivative assets | 82 | 17
Liabilities [Abstract] |  |
Derivative liabilities | 15 | 12
Recurring | Level 3 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 7 | 7
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 0
Recurring | Level 3 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 18 | 6
Recurring | Level 3 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 127
Recurring | Level 3 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 12,452 | 11,768
Recurring | Level 3 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 103 | 91
Recurring | Level 3 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 11,949 | 13,667
Recurring | Level 3 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 3 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 1,646 | 3,127
Recurring | Level 3 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 1,927 | 1,862
Recurring | Level 3 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 3 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 696 | 882
Other limited partnership interests | Recurring |  |
Assets [Abstract] |  |
Investments, Fair Value Disclosure | $ 65 | $ 99

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