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Long-duration Contracts - Reconciliation of Account Balance Within Interest Sensitive Contract Benefits (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities $ 184,359 $ 173,616 $ 164,487
Traditional deferred annuities      
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities 50,917   35,944
Indexed annuities      
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities 92,125   91,442
Funding agreements      
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities 27,618   27,940
Other investment-type      
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities 6,967   3,503
Reconciling items      
Liability for Future Policy Benefit, Activity [Line Items]      
Interest sensitive contract liabilities $ 6,732   $ 5,658