v3.23.1
Insurance Liabilities - Schedule of liabilities by product (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance $ 64,270    
Effect of changes in assumptions   $ 123 $ 92
Effect of actual variances from expected experience   (72) 385
Adjusted beginning of year balance   14,838 14,153
Issuances 1,358 1,727  
Interest accrual 445 446  
Other 0 0  
Net liability for future policy benefits, end of period 50,518 64,270  
Less: Reinsurance recoverable: (22,984) (30,621)  
Net liability for future policy benefits after reinsurance recoverable 27,534 33,649  
Universal Life      
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance 5,007 5,172  
Effect of changes in assumptions   (24) (116)
Effect of actual variances from expected experience   299 327
Adjusted beginning of year balance   5,282 5,383
Assessments 689 671  
Excess benefits paid (909) (859)  
Interest accrual 128 138  
Other (11) 24  
Changes related to unrealized appreciation (depreciation) of investments (1,824) (350)  
Net liability for future policy benefits, end of period 3,355 5,007  
Less: Reinsurance recoverable: (191) (200)  
Net liability for future policy benefits after reinsurance recoverable 3,164 4,807  
Life Insurance      
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance 18,535    
Effect of changes in assumptions   123 164
Effect of actual variances from expected experience   (79) 371
Adjusted beginning of year balance   13,707 12,954
Issuances 1,358 1,727  
Interest accrual 397 392  
Other (1) 0  
Net liability for future policy benefits, end of period 13,354 18,535  
Less: Reinsurance recoverable: (1,107) (1,715)  
Net liability for future policy benefits after reinsurance recoverable $ 12,247 $ 16,820  
Weighted average liability duration of the liability for future policy benefits (in years) 12 years 2 months 12 days 14 years 4 months 24 days  
Life Insurance | Universal Life      
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance $ 4,952 $ 5,117  
Effect of changes in assumptions   (24) (116)
Effect of actual variances from expected experience   303 331
Adjusted beginning of year balance   5,231 5,332
Assessments 687 669  
Excess benefits paid (909) (859)  
Interest accrual 126 136  
Other (11) 24  
Changes related to unrealized appreciation (depreciation) of investments (1,824) (350)  
Net liability for future policy benefits, end of period 3,300 4,952  
Less: Reinsurance recoverable: (191) (200)  
Net liability for future policy benefits after reinsurance recoverable $ 3,109 $ 4,752  
Weighted average liability duration of the liability for future policy benefits (in years) 26 years 3 months 18 days 27 years 1 month 6 days  
Corporate & Other      
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance $ 28,855    
Effect of changes in assumptions   $ 0 (72)
Effect of actual variances from expected experience   7 14
Adjusted beginning of year balance   1,131 1,199
Issuances 0 0  
Interest accrual 48 54  
Other 1 0  
Net liability for future policy benefits, end of period 21,837 28,855  
Less: Reinsurance recoverable: (21,837) (28,855)  
Net liability for future policy benefits after reinsurance recoverable $ 0 $ 0  
Weighted average liability duration of the liability for future policy benefits (in years) 11 years 4 months 24 days 13 years 8 months 12 days  
Corporate & Other | Universal Life      
Liability for Future Policy Benefit, Activity [Line Items]      
Net liability for future policy benefits, beginning balance $ 55 $ 55  
Effect of changes in assumptions   0 0
Effect of actual variances from expected experience   (4) (4)
Adjusted beginning of year balance   51 $ 51
Assessments 2 2  
Excess benefits paid 0 0  
Interest accrual 2 2  
Other 0 0  
Changes related to unrealized appreciation (depreciation) of investments 0 0  
Net liability for future policy benefits, end of period 55 55  
Less: Reinsurance recoverable: 0 0  
Net liability for future policy benefits after reinsurance recoverable $ 55 $ 55  
Weighted average liability duration of the liability for future policy benefits (in years) 9 years 6 months 9 years 9 months 18 days