v3.24.0.1
Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance $ 14,366 $ 10,194 $ 5,513
Less: Income tax expense (benefit) (513) 1,933 0
Ending balance 25,233 14,366 10,194
Accumulated other comprehensive income (loss)      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (7,335) (5) (2)
Other comprehensive income (loss) before reclassifications 2,456 (9,590)  
Less: Reclassification adjustments for gains (losses) realized (84) (169)  
Less: Income tax expense (benefit) 513 (1,933)  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax 267 (158)  
Ending balance (5,575) (7,335) (5)
Unrealized investment gains (losses) on AFS securities without a credit allowance      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (12,568) (1)  
Other comprehensive income (loss) before reclassifications 5,067 (17,931)  
Less: Reclassification adjustments for gains (losses) realized (163) (218)  
Less: Income tax expense (benefit) 588 (3,154)  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax 749 (1,992)  
Ending balance (8,675) (12,568) (1)
Unrealized investment gains (losses) on AFS securities with a credit allowance      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (334) 0  
Other comprehensive income (loss) before reclassifications 51 (463)  
Less: Reclassification adjustments for gains (losses) realized (3) (18)  
Less: Income tax expense (benefit) 6 (86)  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax 3 (25)  
Ending balance (289) (334) 0
Unrealized gains (losses) on hedging instruments      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 48 (1)  
Other comprehensive income (loss) before reclassifications (117) 71  
Less: Reclassification adjustments for gains (losses) realized 82 67  
Less: Income tax expense (benefit) (51) 12  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax (19) (57)  
Ending balance (81) 48 (1)
Remeasurement gains (losses) on future policy benefits related to discount rate      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 5,256 0  
Other comprehensive income (loss) before reclassifications (2,236) 8,425  
Less: Reclassification adjustments for gains (losses) realized 0 0  
Less: Income tax expense (benefit) 38 1,223  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax (476) 1,946  
Ending balance 3,458 5,256 0
Remeasurement gains (losses) on market risk benefits related to credit risk      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 285 0  
Other comprehensive income (loss) before reclassifications (374) 366  
Less: Reclassification adjustments for gains (losses) realized 0 0  
Less: Income tax expense (benefit) (78) 77  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax (14) 4  
Ending balance 3 285 0
Foreign currency translation and other adjustments      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (22) (3)  
Other comprehensive income (loss) before reclassifications 65 (58)  
Less: Reclassification adjustments for gains (losses) realized 0 0  
Less: Income tax expense (benefit) 10 (5)  
Less: Other comprehensive income (loss) attributable to non-controlling interests, net of subsidiary issuance of equity interest and tax 24 (34)  
Ending balance $ 9 $ (22) $ (3)