v3.26.1
Segments - Total Assets (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Total assets $ 182,946   $ 182,946   $ 178,859
Net investment income (loss) (49) $ 43 1 $ 75  
Revenues 1,896 1,981 3,927 3,950  
Other Corporate 9 14 17 22  
Less: Net income (loss) attributable to noncontrolling interest and redeemable noncontrolling interest (76) (5) (63) (10)  
Less: Preferred stock dividends 4 4 21 21  
Corporate          
Segment Reporting [Line Items]          
Total assets 24,319   24,319   24,749
Total | Parent          
Segment Reporting [Line Items]          
Total assets 179,168   179,168   174,410
Operating Segments          
Segment Reporting [Line Items]          
Adjusted operating earnings before income taxes     424 521  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest     27 24  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax     450 545  
Operating Segments | Retirement Deferred Group and Individual Annuity          
Segment Reporting [Line Items]          
Total assets 149,730   149,730   144,423
Operating Segments | Employee Benefits [Member]          
Segment Reporting [Line Items]          
Total assets 3,263   3,263   3,330
Operating Segments | Investment Management [Member]          
Segment Reporting [Line Items]          
Total assets 1,857   1,857   1,905
Operating Segments | Corporate          
Segment Reporting [Line Items]          
Adjusted operating earnings before income taxes     (167) (131)  
Operating Segments | Wealth Solutions Segment          
Segment Reporting [Line Items]          
External customer revenue 420 380 824 761  
Net investment income (loss) 0 0 0 0  
Other Nonrecurring (Income) Expense 3 7 (4) (15)  
Adjusted operating revenues 799 824 1,620 1,622  
Interest Credited to Policy Owner Account 227 232 452 463  
Administrative Fees Expense 275 259 561 519  
Noninterest Income 0 0 0 0  
Intersegment Fee income and elimination 0 0 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 27 28 55 55  
Financing Costs And Dividends, Preferred Stock 0 0 0 0  
Other Corporate 0 0 0 0  
Adjusted operating earnings before income taxes 190 235 399 442  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 0 0 0 0  
Operating Segments | Health Solutions Segment          
Segment Reporting [Line Items]          
External customer revenue 792 795 1,608 1,602  
Net investment income (loss) 0 0 0 0  
Other Nonrecurring (Income) Expense (2) 0 (4) (1)  
Adjusted operating revenues 821 832 1,675 1,673  
Interest Credited to Policy Owner Account 558 529 1,096 1,081  
Administrative Fees Expense 140 132 285 271  
Intersegment Fee income and elimination 0 0 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 12 7 26 16  
Financing Costs And Dividends, Preferred Stock 0 0 0 0  
Other Corporate 0 0 0 0  
Adjusted operating earnings before income taxes 22 69 85 115  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 0 0 0 0  
Operating Segments | Investment Management Segment          
Segment Reporting [Line Items]          
External customer revenue 243 223 477 446  
Net investment income (loss) (55) 37 (4) 73  
Other Nonrecurring (Income) Expense 27 (49) (31) (94)  
Adjusted operating revenues 255 239 507 482  
Interest Credited to Policy Owner Account 0 0 0 0  
Administrative Fees Expense 181 174 373 364  
Noninterest Income 0 0 0 0  
Intersegment Fee income and elimination 21 21 43 43  
Deferred Policy Acquisition Cost, Amortization Expense, Other 0 0 0 0  
Financing Costs And Dividends, Preferred Stock 0 0 0 0  
Other Corporate 0 0 0 0  
Adjusted operating earnings before income taxes 57 51 103 92  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 18 14 30 26  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 74 65 133 118  
Segment Reporting, Reconciling Item, Corporate Nonsegment          
Segment Reporting [Line Items]          
External customer revenue (7) (3) (4) (3)  
Net investment income (loss) 6 6 5 2  
Revenues       3,950  
Other Nonrecurring (Income) Expense (41) (39) (72) (52)  
Adjusted operating revenues 8 5 13 11  
Interest Credited to Policy Owner Account 0 0 0 0  
Administrative Fees Expense 0 0 0 0  
Noninterest Income 0 0 0 0  
Intersegment Fee income and elimination (21) (21) (43) (43)  
Deferred Policy Acquisition Cost, Amortization Expense, Other 0 0 0 0  
Financing Costs And Dividends, Preferred Stock 38 32 86 80  
Other Corporate 74 40 95 62  
Adjusted operating earnings before income taxes (102) (67) (163) (129)  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest (2) (1) (4) (2)  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax (104) (67) (167)    
Operating Segments And Corporate Non Segment          
Segment Reporting [Line Items]          
External customer revenue 1,448 1,395 2,905 2,806  
Net investment income (loss) (49) 43 1 75  
Other Nonrecurring (Income) Expense (13) (81) (112) (162)  
Adjusted operating revenues 1,883 1,900 3,815 3,788  
Interest Credited to Policy Owner Account 785 761 1,548 1,544  
Administrative Fees Expense 596 565 1,219 1,154  
Noninterest Income 49 50 99 101  
Intersegment Fee income and elimination 0 0 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 39 35 81 71  
Adjusted operating earnings before income taxes 167 289 424    
Other Adjustments to Operating Income (Loss) (11)        
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 16 13 27 24  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 183 302 450    
Adjustments          
Segment Reporting [Line Items]          
Total assets $ 3,778   3,778   $ 4,449
Other Adjustments to Operating Income (Loss)   $ (41) $ (5) $ (71)