v3.26.1
Segments - Total Assets (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Segment Reporting [Line Items]      
Total assets $ 173,433   $ 178,859
Net investment income 50 $ 32  
Revenues 2,031 1,969  
Other Corporate 8 8  
Less: Net income (loss) attributable to noncontrolling interest and redeemable noncontrolling interest 13 (5)  
Less: Preferred stock dividends 17 17  
Corporate      
Segment Reporting [Line Items]      
Total assets 24,334   24,749
Total | Parent      
Segment Reporting [Line Items]      
Total assets 169,004   174,410
Operating Segments | Retirement Deferred Group and Individual Annuity      
Segment Reporting [Line Items]      
Total assets 139,633   144,423
Operating Segments | Employee Benefits [Member]      
Segment Reporting [Line Items]      
Total assets 3,167   3,330
Operating Segments | Investment Management [Member]      
Segment Reporting [Line Items]      
Total assets 1,870   1,905
Operating Segments | Wealth Solutions Segment      
Segment Reporting [Line Items]      
External customer revenue 404 380  
Net investment income 0 0  
Other Nonrecurring (Income) Expense (8) (22)  
Adjusted operating revenues 821 798  
Interest Credited to Policy Owner Account 226 231  
Administrative Fees Expense 286 261  
Noninterest Income 0 0  
Intersegment Fee income and elimination 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 28 28  
Financing Costs And Dividends, Preferred Stock 0 0  
Other Corporate 0 0  
Adjusted operating earnings before income taxes 209 207  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 0 0  
Operating Segments | Health Solutions Segment      
Segment Reporting [Line Items]      
External customer revenue 817 807  
Net investment income 0 0  
Other Nonrecurring (Income) Expense (1) (1)  
Adjusted operating revenues 855 841  
Interest Credited to Policy Owner Account 538 551  
Administrative Fees Expense 145 139  
Intersegment Fee income and elimination 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 14 9  
Financing Costs And Dividends, Preferred Stock 0 0  
Other Corporate 0 0  
Adjusted operating earnings before income taxes 63 46  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 0 0  
Operating Segments | Investment Management Segment      
Segment Reporting [Line Items]      
External customer revenue 234 223  
Net investment income 50 36  
Other Nonrecurring (Income) Expense (58) (44)  
Adjusted operating revenues 251 243  
Interest Credited to Policy Owner Account 0 0  
Administrative Fees Expense 192 190  
Noninterest Income 0 0  
Intersegment Fee income and elimination 22 22  
Deferred Policy Acquisition Cost, Amortization Expense, Other 0 0  
Financing Costs And Dividends, Preferred Stock 0 0  
Other Corporate 0 0  
Adjusted operating earnings before income taxes 46 41  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 13 12  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 59 53  
Segment Reporting, Reconciling Item, Corporate Nonsegment      
Segment Reporting [Line Items]      
External customer revenue 2 1  
Net investment income 0 (4)  
Other Nonrecurring (Income) Expense (31) (14)  
Adjusted operating revenues 5 6  
Interest Credited to Policy Owner Account 0 0  
Administrative Fees Expense 0 0  
Noninterest Income 0 0  
Intersegment Fee income and elimination (22) (22)  
Deferred Policy Acquisition Cost, Amortization Expense, Other 0 0  
Financing Costs And Dividends, Preferred Stock 48 47  
Other Corporate 21 22  
Adjusted operating earnings before income taxes (61) (62)  
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest (2) (1)  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax (63) (63)  
Operating Segments And Corporate Non Segment      
Segment Reporting [Line Items]      
External customer revenue 1,457 1,411  
Net investment income 50 32  
Other Nonrecurring (Income) Expense (99) (81)  
Adjusted operating revenues 1,932 1,888  
Interest Credited to Policy Owner Account 764 782  
Administrative Fees Expense 623 590  
Noninterest Income 50 50  
Intersegment Fee income and elimination 0 0  
Deferred Policy Acquisition Cost, Amortization Expense, Other 42 37  
Adjusted operating earnings before income taxes 257 232  
Other Adjustments to Operating Income (Loss) 6    
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest 11 11  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 267 243  
Adjustments      
Segment Reporting [Line Items]      
Total assets $ 4,429   $ 4,449
Other Adjustments to Operating Income (Loss)   $ (30)