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Reinsurance (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Jan. 01, 2021
Reinsurance Disclosures [Abstract] |  |  |
Deposit assets in premiums, reinsurance, and other receivables or secondary guarantee risk for reinsurance | $ 5,100 | $ 1,900 |
Deposit liabilities in other liabilities for reinsurance | 1,300 | 1,400 |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance recoverables | 16,700 | 6,100 |
Other liabilities | 35,805 | 25,933 |
Investments | 446,137 | 433,293 |
Separate account assets | 144,634 | 146,038 |
Premiums, reinsurance and other receivables relating to variable interest entities | 28,971 | 17,364 | $ 18,169
Ceded Reinsurance [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Other liabilities | 6,788 | 5,273 |
Premiums, reinsurance and other receivables relating to variable interest entities | $ 21,522 | 10,432 |
Modified Coinsurance of Closed Block [Member] |  |  |
Reinsurance Retention Policy [Line Items] |  |  |
Reinsurance Retention Policy, Reinsured Risk, Percentage | 59.00% |  |
Universal Life, Variable Universal Life, and Universal Life with Secondary Guarantees |  |  |
Ceded Credit Risk [Line Items] |  |  |
Other liabilities | $ 770 |  |
Fixed Maturity Securities AFS and Mortgage Loans |  |  |
Ceded Credit Risk [Line Items] |  |  |
Investments | 9,500 |  |
Ceded Credit Risk, Unsecured [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance recoverables | 4,400 | 3,800 |
Global Atlantic Financial Group |  |  |
Ceded Credit Risk [Line Items] |  |  |
Ceding Commissions, Before Tax | 2,200 |  |
Separate account assets | 5,000 |  |
Global Atlantic Financial Group | Ceded Reinsurance [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Premiums, reinsurance and other receivables relating to variable interest entities | 10,300 |  |
Five Largest Ceded Reinsurers [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Five largest reinsurers, reinsurance recoverables amount | $ 14,100 | $ 4,200 |
Five largest reinsurers, reinsurance recoverables percentage | 84.00% | 69.00% |
Five Largest Ceded Reinsurers [Member] | Ceded Credit Risk, Unsecured [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Five largest reinsurers, reinsurance recoverables amount | $ 2,500 | $ 2,300 |

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