XML 178 R117.htm IDEA: XBRL DOCUMENT v3.25.0.1
Reserve for Unpaid Losses and Loss Adjustment Expenses - Reconciliation of Loss Development to Liability for Unpaid Losses and Loss Adjustment Expenses, Group (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Unpaid losses and loss adjustment expenses $ 44,610 $ 42,318    
Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Cumulative Incurred for Accident Years Displayed in Triangles 20,578      
Cumulative Paid for Accident Years Displayed in Triangles (13,912)      
Unpaid for Accident Years not Displayed in Triangles 2,237      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 217      
Discount (1,196) (1,166) $ (1,205)  
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 7,924 8,020 7,915 $ 7,965
Reinsurance and Other Recoverables (282) (254) (245) (245)
Unpaid losses and loss adjustment expenses 8,206 $ 8,274 $ 8,160 $ 8,210
Group long-term disability | Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Cumulative Incurred for Accident Years Displayed in Triangles 14,365      
Cumulative Paid for Accident Years Displayed in Triangles (8,243)      
Unpaid for Accident Years not Displayed in Triangles 1,400      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 193      
Discount (1,121)      
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 6,594      
Reinsurance and Other Recoverables (270)      
Unpaid losses and loss adjustment expenses 6,864      
Group life and accident, excluding premium waiver | Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Cumulative Incurred for Accident Years Displayed in Triangles 6,213      
Cumulative Paid for Accident Years Displayed in Triangles (5,669)      
Unpaid for Accident Years not Displayed in Triangles 145      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 5      
Discount (12)      
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 682      
Reinsurance and Other Recoverables (4)      
Unpaid losses and loss adjustment expenses 686      
Group short-term disability | Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Unpaid for Accident Years not Displayed in Triangles 173      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 10      
Discount 0      
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 183      
Reinsurance and Other Recoverables 0      
Unpaid losses and loss adjustment expenses 183      
Group life premium waiver | Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Unpaid for Accident Years not Displayed in Triangles 485      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 9      
Discount (63)      
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 431      
Reinsurance and Other Recoverables (3)      
Unpaid losses and loss adjustment expenses 434      
Group supplemental health | Group Benefits        
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]        
Unpaid for Accident Years not Displayed in Triangles 34      
Unpaid Unallocated Loss Adjustment Expenses, Net of Reinsurance 0      
Discount 0      
Unpaid Losses and Loss Adjustment Expenses, Net of Reinsurance 34      
Reinsurance and Other Recoverables (5)      
Unpaid losses and loss adjustment expenses $ 39