v3.26.3
Segment Information - Reconciliation of Segment Expenses (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Information        
Benefits, claims and settlement expenses $ 2,318.7 $ 1,964.1 $ 5,921.9 $ 6,024.0
Liability for future policy benefit remeasurement (gain) loss (23.4) (60.9) (16.1) (58.8)
Market risk benefit remeasurement (gain) loss (7.8) (4.0) (33.8) (53.0)
Dividends to policyholders 29.7 30.0 84.2 72.0
Operating expenses 1,398.0 1,374.2 4,178.4 4,060.6
Total expenses 3,777.6 3,433.2 10,234.4 10,268.4
Operating Segments        
Segment Information        
Total segment expenses 3,687.5 3,315.9 9,968.8 9,932.7
Operating Segments | Retirement and Income Solutions        
Segment Information        
Benefits, claims and settlement expenses 1,530.2 1,144.0 3,403.6 3,504.1
Liability for future policy benefit remeasurement (gain) loss 3.2 (10.5) 2.2 (18.9)
Market risk benefit remeasurement (gain) loss 3.6 0.9 1.7 4.6
Dividends to policyholders 0.1 0.1 0.2 0.1
Commission expense 74.8 74.9 218.3 216.9
Capitalization of deferred acquisition costs and contract costs (38.2) (41.1) (112.3) (122.5)
Amortization of deferred acquisition costs and contract costs 25.5 21.8 71.4 64.0
Depreciation and amortization 19.6 18.3 57.4 56.4
Compensation and other 377.7 367.4 1,128.9 1,088.2
Operating expenses 459.4 441.3 1,363.7 1,303.0
Total segment expenses 1,996.5 1,575.8 4,771.4 4,792.9
Operating Segments | Principal Asset Management        
Segment Information        
Benefits, claims and settlement expenses 31.8 60.9 225.3 233.7
Liability for future policy benefit remeasurement (gain) loss 0.3 (0.8) 0.7 (0.9)
Commission expense 53.7 50.9 156.0 147.2
Capitalization of deferred acquisition costs and contract costs (12.7) (9.7) (31.7) (25.8)
Amortization of deferred acquisition costs and contract costs 9.0 12.7 26.3 24.9
Depreciation and amortization 13.9 13.7 41.5 41.5
Interest expense on corporate debt 0.1 0.3 0.8 1.2
Compensation and other 318.2 320.0 998.4 983.8
Operating expenses 382.2 387.9 1,191.3 1,172.8
Total segment expenses 414.3 448.0 1,417.3 1,405.6
Operating Segments | Benefits and Protection        
Segment Information        
Benefits, claims and settlement expenses 725.8 705.0 2,124.4 2,123.4
Liability for future policy benefit remeasurement (gain) loss (8.9) 72.8 (17.2) 68.7
Dividends to policyholders 31.0 29.9 85.4 71.9
Commission expense 134.7 132.4 405.4 419.1
Capitalization of deferred acquisition costs and contract costs (78.7) (74.3) (241.2) (236.0)
Amortization of deferred acquisition costs and contract costs 65.9 63.9 196.0 192.3
Depreciation and amortization 5.4 4.3 13.9 13.0
Compensation and other 251.5 240.0 733.5 715.0
Operating expenses 378.8 366.3 1,107.6 1,103.4
Total segment expenses 1,126.7 1,174.0 3,300.2 3,367.4
Operating Segments | Corporate        
Segment Information        
Benefits, claims and settlement expenses (1.2) (1.1) 30.1 21.7
Commission expense 46.9 26.9 133.1 75.6
Depreciation and amortization 3.4 3.8 10.3 12.1
Interest expense on corporate debt 49.1 45.0 137.7 132.4
Compensation and other 51.8 43.5 168.7 125.0
Operating expenses 151.2 119.2 449.8 345.1
Total segment expenses 150.0 118.1 479.9 366.8
Reconciling items        
Segment Information        
Net realized capital gains (losses) expense adjustments 46.1 80.0 140.3 145.2
Market risk benefit derivative settlements (7.3) (10.1) (22.6) (32.2)
Expenses from exited business 44.9 47.4 141.5 222.7
Expenses related to actuarial assumption review 6.4   6.4  
Total expenses $ 3,777.6 $ 3,433.2 $ 10,234.4 $ 10,268.4