v3.25.0.1
Other Insurance Liabilities and Separate Accounts - Changes in Liability for Future Policy Benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Present value of expected future policy benefits      
Effect of changes in discount rate assumptions $ (1) $ (23)  
Large Case Pensions      
Present value of expected future policy benefits      
Liability for future policy benefits, beginning of period - current discount rate 2,139 2,253  
Beginning liability for future policy benefits at original (locked-in) discount rate 2,251 2,425  
Effect of changes in cash flow assumptions   0 $ 0
Effect of actual variances from expected experience   (27) (3)
Adjusted beginning liability for future policy benefits - original (locked-in) discount rate   2,224 2,422
Issuances 30 8  
Interest accrual (using locked-in discount rate) 91 97  
Benefit payments (actual) (255) (276)  
Ending liability for future policy benefits at original (locked-in) discount rate 2,090 2,251  
Effect of changes in discount rate assumptions (173) (112)  
Liability for future policy benefits, end of period - current discount rate 1,917 2,139  
Net liability for future policy benefits 1,917 2,139  
Less: Reinsurance recoverable 0 0  
Net liability for future policy benefits, net of reinsurance recoverable 1,917 2,139  
Long-Term Care      
Present value of expected net premiums      
Liability for future policy benefits, beginning of period - current discount rate 293 300  
Beginning liability for future policy benefits at original (locked-in) discount rate 288 302  
Effect of changes in cash flow assumptions   0 0
Effect of actual variances from expected experience   16 10
Adjusted beginning liability for future policy benefits - original (locked-in) discount rate   304 312
Interest accrual (using locked-in discount rate) 14 15  
Net premiums (actual) (38) (39)  
Ending liability for future policy benefits at original (locked-in) discount rate 280 288  
Effect of changes in discount rate assumptions (5) 5  
Liability for future policy benefits, end of period - current discount rate 275 293  
Present value of expected future policy benefits      
Liability for future policy benefits, beginning of period - current discount rate 1,640 1,566  
Beginning liability for future policy benefits at original (locked-in) discount rate 1,632 1,613  
Effect of changes in cash flow assumptions   0 0
Effect of actual variances from expected experience   6 8
Adjusted beginning liability for future policy benefits - original (locked-in) discount rate   1,638 $ 1,621
Issuances 0 0  
Interest accrual (using locked-in discount rate) 83 82  
Benefit payments (actual) (74) (71)  
Ending liability for future policy benefits at original (locked-in) discount rate 1,647 1,632  
Effect of changes in discount rate assumptions (95) 8  
Liability for future policy benefits, end of period - current discount rate 1,552 1,640  
Net liability for future policy benefits 1,277 1,347  
Less: Reinsurance recoverable 0 0  
Net liability for future policy benefits, net of reinsurance recoverable $ 1,277 $ 1,347