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Investments (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Investments [Line Items] |  |  |  |
Master funds gross assets |  | $ 37,046 | $ 58,087 |
Master funds gross liabilities |  | 35,344 | 56,225 |
Unaffiliated interest |  | 404 | 371 |
Consolidated feeder funds’ investments |  | 712 | 639 |
Total Unrealized Losses |  | 27,870 | 35,944 |
Twelve Months or More, Unrealized Losses |  | 26,855 | 15,668 |
Fixed Maturities, available-for-sale, at fair value | [1] | 316,321 | 307,719 |
Fixed maturities, trading | [1] | 9,790 | 5,951 |
Total commercial mortgage and other loans |  | 59,305 | 56,745 |
Other invested assets | [1] | 22,855 | 21,099 |
Write-down on accrued investment income receivable |  | 1 | 1 |
Fixed maturity securities purchased with credit deterioration |  | 0 | 0 |
Loans on non-accrual status recognized in interest income |  | 3 | 1 |
Loans on non-accrual status do not have allowance for credit losses |  | 126 | 27 |
Commercial mortgage and other loans purchased with credit deterioration |  | 0 | 0 |
Fair value of collateral |  | 717 | 1,295 |
Fixed Maturities, HTM, allowance for credit losses |  | 0 | 2 |
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain, Net |  | 126 |  |
Fixed maturities | Fixed maturities, Trading |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Fixed maturities, trading |  | 9,790 |  |
Corporate securities |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Twelve Months or More, Unrealized Losses |  | 26,855 | 15,668 |
Held-to-maturity |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Fixed Maturities, HTM, allowance for credit losses |  | 1,125 |  |
Other Income | Fixed maturities | Fixed maturities, Trading |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Gain (Loss) on Investments |  | (518) | 1,427 | $ 169
Other Income | Equity securities |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Gain (Loss) on Investments |  | (612) | 914 | (591)
Other Income | Assets supporting experience-rated contractholder liabilities | Held-for-sale |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Gain (Loss) on Investments |  | (440) | 737 | $ 708
Investments |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Fair value of collateral |  | 388 | 385 |
Cash |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Fair value of collateral |  | 329 | 910 |
Carrying value of non-income producing assets |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Fixed Maturities, available-for-sale, at fair value |  | 114 |  |
Fixed maturities, trading |  | 25 |  |
Total commercial mortgage and other loans |  | 12 |  |
Other invested assets |  | $ 1 |  |
California |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 30.00% |  |
Texas |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 8.00% |  |
New York |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 6.00% |  |
Europe |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 6.00% |  |
Asia |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 1.00% |  |
Mexico |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 1.00% |  |
Australia |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Commercial mortgage loan, concentration percentage |  | 1.00% |  |
NAIC High or Highest Quality Rating | Fixed maturities |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Total Unrealized Losses |  | $ 26,879 | 33,778 |
NAIC Other Than High or Highest Quality Rating | Fixed maturities |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Total Unrealized Losses |  | $ 991 | $ 2,166 |
[1] | See Note 4 for details of balances associated with variable interest entities.

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