v3.23.1
Derivatives and Hedge Accounting - Derivatives not designated as hedging instruments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Total net realized gains (losses) Total net realized gains (losses) Total net realized gains (losses)
Fortitude Re funds withheld assets      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total $ (121) $ 33 $ 398
Excluding Fortitude Re funds withheld embedded derivative      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 6,347 (687) (3,978)
Derivatives not designated as hedging instruments      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 5,689 (1,962) (4,420)
Derivatives not designated as hedging instruments | AIG      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (2,500) (363) 2,400
Derivatives not designated as hedging instruments | Excluding Fortitude Re Funds Withheld Assets      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 817 445 (916)
Derivatives not designated as hedging instruments | Policy fees      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 61 62 62
Derivatives not designated as hedging instruments | Net Investment Income      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (10) 6 2
Derivatives not designated as hedging instruments | Policyholder benefits and claims incurred      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (19) (4) 12
Derivatives not designated as hedging instruments | Change in the Fair Value of Market Risk Benefits      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (1,386) (1,817) 0
Derivatives not designated as hedging instruments | Interest rate contracts      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (2,386) (585) 1,643
Derivatives not designated as hedging instruments | Foreign exchange contracts      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 1,028 476 (239)
Derivatives not designated as hedging instruments | Equity contracts      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (483) (742) 206
Derivatives not designated as hedging instruments | Credit contracts      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total (1) (11) 42
Derivatives not designated as hedging instruments | Other contracts      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 64 64 60
Derivatives not designated as hedging instruments | Embedded derivatives      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total 1,120 (477) (2,154)
Derivatives not designated as hedging instruments | Embedded derivatives | Excluding Fortitude Re funds withheld embedded derivative | Fortitude RE      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Total $ 6,347 $ (687) $ (3,978)