v3.23.1
Insurance Liabilities - Balances of changes in liability for future policy benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Jan. 01, 2021
Dec. 31, 2020
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year $ 15,643 $ 15,299    
Effect of changes in discount rate assumptions (AOCI) 856 (1,623)    
Beginning balance at original discount rate 14,787 13,676    
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    
Net premium collected (1,541) (1,493)    
Foreign exchange impact (517) (46)    
Other 0 0    
Ending balance at original discount rate 14,583 14,787    
Effect of changes in discount rate assumptions (AOCI) (1,938) 856    
Balance, end of period 12,645 15,643    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 70,643 71,670    
Effect of changes in discount rate assumptions (AOCI) 9,401 (14,086)    
Beginning balance at original discount rate 61,242 57,584    
Effect of changes in cash flow assumptions   134   110
Effect of actual variances from expected experience   (122)   289
Adjusted beginning of year balance 61,254 57,983    
Issuances 4,393 5,287    
Interest accrual 2,620 2,393    
Benefit payments (4,203) (4,336)    
Foreign exchange impact (996) (63)    
Other (252) (22)    
Ending balance at original discount rate 62,816 61,242    
Effect of changes in discount rate assumptions (AOCI) (7,310) 9,401    
Balance, end of period 55,506 70,643    
Net liability for future policy benefits, end of period 42,861 55,000    
Liability for future policy benefits for certain participating contracts 1,352 1,397    
Liability for universal life policies with secondary guarantees and similar features 3,355 5,007    
Deferred profit liability 2,303 2,236    
Other reconciling items 647 630    
Future policy benefits for life and accident and health insurance contracts 50,518 64,270 $ 65,182  
Less: Reinsurance recoverable: 22,984 30,621    
Net liability for future policy benefits after reinsurance recoverable 27,534 33,649    
Individual Retirement        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year 0 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Beginning balance at original discount rate 0 0    
Effect of changes in assumptions   0   0
Effect of actual variances from expected experience   0   0
Adjusted beginning of year balance 0 0    
Issuances 0 0    
Interest accrual 0 0    
Net premium collected 0 0    
Foreign exchange impact 0 0    
Other 0 0    
Ending balance at original discount rate 0 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Balance, end of period 0 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 1,373 1,323    
Effect of changes in discount rate assumptions (AOCI) 95 (156)    
Beginning balance at original discount rate 1,278 1,167    
Effect of changes in cash flow assumptions   0   0
Effect of actual variances from expected experience   (30)   1
Adjusted beginning of year balance 1,248 1,168    
Issuances 216 172    
Interest accrual 42 41    
Benefit payments (116) (101)    
Foreign exchange impact 0 0    
Other 0 (2)    
Ending balance at original discount rate 1,390 1,278    
Effect of changes in discount rate assumptions (AOCI) (167) 95    
Balance, end of period 1,223 1,373    
Net liability for future policy benefits, end of period 1,223 1,373    
Liability for future policy benefits for certain participating contracts 0 0    
Liability for universal life policies with secondary guarantees and similar features 0 0    
Deferred profit liability 99 81    
Other reconciling items 37 42    
Future policy benefits for life and accident and health insurance contracts 1,359 1,496    
Less: Reinsurance recoverable: 4 4    
Net liability for future policy benefits after reinsurance recoverable $ 1,355 $ 1,492    
Weighted average liability duration of the liability for future policy benefits (in years) 7 years 7 months 6 days 8 years 7 months 6 days    
Group Retirement        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year $ 0 $ 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Beginning balance at original discount rate 0 0    
Effect of changes in assumptions   0   0
Effect of actual variances from expected experience   0   0
Adjusted beginning of year balance 0 0    
Issuances 0 0    
Interest accrual 0 0    
Net premium collected 0 0    
Foreign exchange impact 0 0    
Other 0 0    
Ending balance at original discount rate 0 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Balance, end of period 0 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 264 279    
Effect of changes in discount rate assumptions (AOCI) 46 (63)    
Beginning balance at original discount rate 218 216    
Effect of changes in cash flow assumptions   0   0
Effect of actual variances from expected experience   (2)   (1)
Adjusted beginning of year balance 216 215    
Issuances 12 21    
Interest accrual 10 11    
Benefit payments (26) (28)    
Foreign exchange impact 0 0    
Other 1 (1)    
Ending balance at original discount rate 213 218    
Effect of changes in discount rate assumptions (AOCI) (2) 46    
Balance, end of period 211 264    
Net liability for future policy benefits, end of period 211 264    
Liability for future policy benefits for certain participating contracts 0 0    
Liability for universal life policies with secondary guarantees and similar features 0 0    
Deferred profit liability 12 11    
Other reconciling items 0 0    
Future policy benefits for life and accident and health insurance contracts 223 275    
Less: Reinsurance recoverable: 0 0    
Net liability for future policy benefits after reinsurance recoverable $ 223 $ 275    
Weighted average liability duration of the liability for future policy benefits (in years) 6 years 10 months 24 days 7 years 9 months 18 days    
Life Insurance        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year $ 14,369 $ 13,793    
Effect of changes in discount rate assumptions (AOCI) 706 (1,374)    
Beginning balance at original discount rate 13,663 12,419    
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    
Net premium collected (1,418) (1,364)    
Foreign exchange impact (517) (46)    
Other (1) 0    
Ending balance at original discount rate 13,526 13,663    
Effect of changes in discount rate assumptions (AOCI) (1,872) 706    
Balance, end of period 11,654 14,369    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 27,442 27,919    
Effect of changes in discount rate assumptions (AOCI) 2,717 (4,351)    
Beginning balance at original discount rate 24,725 23,568    
Effect of changes in cash flow assumptions   140   193
Effect of actual variances from expected experience   (94)   413
Adjusted beginning of year balance 24,771 24,174    
Issuances 1,374 1,713    
Interest accrual 876 876    
Benefit payments (1,757) (1,981)    
Foreign exchange impact (657) (60)    
Other (4) 3    
Ending balance at original discount rate 24,603 24,725    
Effect of changes in discount rate assumptions (AOCI) (3,424) 2,717    
Balance, end of period 21,179 27,442    
Net liability for future policy benefits, end of period 9,525 13,073    
Liability for future policy benefits for certain participating contracts 14 15    
Liability for universal life policies with secondary guarantees and similar features 3,300 4,952    
Deferred profit liability 15 10    
Other reconciling items 500 485    
Future policy benefits for life and accident and health insurance contracts 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    
Institutional Markets        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year $ 0 $ 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Beginning balance at original discount rate 0 0    
Effect of changes in assumptions   0   0
Effect of actual variances from expected experience   0   0
Adjusted beginning of year balance 0 0    
Issuances 0 0    
Interest accrual 0 0    
Net premium collected 0 0    
Foreign exchange impact 0 0    
Other 0 0    
Ending balance at original discount rate 0 0    
Effect of changes in discount rate assumptions (AOCI) 0 0    
Balance, end of period 0 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 13,890 11,630    
Effect of changes in discount rate assumptions (AOCI) 870 (1,654)    
Beginning balance at original discount rate 13,020 9,976    
Effect of changes in cash flow assumptions   (6)   0
Effect of actual variances from expected experience   3   (3)
Adjusted beginning of year balance 13,017 9,973    
Issuances 2,782 3,366    
Interest accrual 459 380    
Benefit payments (821) (696)    
Foreign exchange impact (339) (3)    
Other 0 0    
Ending balance at original discount rate 15,098 13,020    
Effect of changes in discount rate assumptions (AOCI) (2,634) 870    
Balance, end of period 12,464 13,890    
Net liability for future policy benefits, end of period 12,464 13,890    
Liability for future policy benefits for certain participating contracts 0 0    
Liability for universal life policies with secondary guarantees and similar features 0 0    
Deferred profit liability 1,281 1,218    
Other reconciling items 0 1    
Future policy benefits for life and accident and health insurance contracts 13,745 15,109    
Less: Reinsurance recoverable: 36 47    
Net liability for future policy benefits after reinsurance recoverable $ 13,709 $ 15,062    
Weighted average liability duration of the liability for future policy benefits (in years) 10 years 9 months 18 days 13 years    
Corporate & Other        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance, beginning of year $ 1,274 $ 1,506    
Effect of changes in discount rate assumptions (AOCI) 150 (249)    
Beginning balance at original discount rate 1,124 1,257    
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    
Net premium collected (123) (129)    
Foreign exchange impact 0 0    
Other 1 0    
Ending balance at original discount rate 1,057 1,124    
Effect of changes in discount rate assumptions (AOCI) (66) 150    
Balance, end of period 991 1,274    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance, beginning of year 27,674 30,519    
Effect of changes in discount rate assumptions (AOCI) 5,673 (7,862)    
Beginning balance at original discount rate 22,001 22,657    
Effect of changes in cash flow assumptions   0   (83)
Effect of actual variances from expected experience   1   $ (121)
Adjusted beginning of year balance 22,002 22,453    
Issuances 9 15    
Interest accrual 1,233 1,085    
Benefit payments (1,483) (1,530)    
Foreign exchange impact 0 0    
Other (249) (22)    
Ending balance at original discount rate 21,512 22,001    
Effect of changes in discount rate assumptions (AOCI) (1,083) 5,673    
Balance, end of period 20,429 27,674    
Net liability for future policy benefits, end of period 19,438 26,400    
Liability for future policy benefits for certain participating contracts 1,338 1,382    
Liability for universal life policies with secondary guarantees and similar features 55 55    
Deferred profit liability 896 916    
Other reconciling items 110 102    
Future policy benefits for life and accident and health insurance contracts 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