v3.24.2.u1
Future Policy Benefits - Income statement information (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums $ 3,229 $ 4,928
Interest accretion 1,191 1,057
Universal Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 519 593
Interest accretion 79 62
Individual Retirement    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 70 136
Interest accretion 32 25
Group Retirement    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 5 10
Interest accretion 6 5
Life Insurance    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 1,070 1,175
Interest accretion 233 236
Life Insurance | Universal Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 500 573
Interest accretion 78 61
Institutional Markets    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 1,981 3,500
Interest accretion 439 301
Corporate and Other    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 103 107
Interest accretion 481 490
Corporate and Other | Universal Life    
Liability for Future Policy Benefit, Activity [Line Items]    
Gross premiums 19 20
Interest accretion $ 1 $ 1