v3.25.2
Segment Information - Reconciliation of Segment Expenses (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Benefits, claims and settlement expenses $ 1,839.9 $ 2,077.9 $ 4,059.9 $ 4,147.6
Liability for future policy benefit remeasurement (gain) loss 4.3 (444.8) 2.1 (443.1)
Market risk benefit remeasurement (gain) loss (14.3) 0.4 (49.0) 14.9
Dividends to policyholders 22.9 23.9 42.0 53.2
Operating expenses 1,295.4 1,320.7 2,686.4 2,664.1
Total expenses 3,168.2 3,866.9 6,835.2 7,293.1
Operating Segments        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Total segment expenses 3,092.8 3,584.8 6,616.8 6,915.0
Operating Segments | Retirement and Income Solutions        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Benefits, claims and settlement expenses 1,006.2 1,490.8 2,360.1 2,734.1
Liability for future policy benefit remeasurement (gain) loss (3.6) (0.4) (8.4) (2.8)
Market risk benefit remeasurement (gain) loss 1.8 2.9 3.7 3.0
Dividends to policyholders   0.1   0.1
Commission expense 72.5 61.9 142.0 120.7
Capitalization of deferred acquisition costs and contract costs (40.5) (28.5) (81.4) (57.7)
Amortization of deferred acquisition costs and contract costs 21.1 20.1 42.2 40.1
Depreciation and amortization 18.7 19.6 38.1 40.3
Compensation and other 350.0 360.0 720.8 718.9
Operating expenses 421.8 433.1 861.7 862.3
Total segment expenses 1,426.2 1,926.5 3,217.1 3,596.7
Operating Segments | Principal Asset Management        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Benefits, claims and settlement expenses 82.2 103.8 172.8 178.3
Liability for future policy benefit remeasurement (gain) loss (0.6) (0.1) (0.1) (0.1)
Commission expense 48.2 45.2 96.3 90.7
Capitalization of deferred acquisition costs and contract costs (8.4) (5.6) (16.1) (12.5)
Amortization of deferred acquisition costs and contract costs 6.4 8.9 12.2 16.9
Depreciation and amortization 13.9 16.3 27.8 33.8
Interest expense on corporate debt 0.4 0.8 0.9 1.8
Compensation and other 321.0 321.5 663.8 648.1
Operating expenses 381.5 387.1 784.9 778.8
Total segment expenses 463.1 490.8 957.6 957.0
Operating Segments | Benefits and Protection        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Benefits, claims and settlement expenses 719.1 628.4 1,418.4 1,310.3
Liability for future policy benefit remeasurement (gain) loss (3.7) 48.3 (4.1) 54.6
Dividends to policyholders 22.9 23.8 42.0 53.1
Commission expense 135.7 131.9 286.7 273.7
Capitalization of deferred acquisition costs and contract costs (74.4) (77.8) (161.7) (164.2)
Amortization of deferred acquisition costs and contract costs 64.4 62.8 128.4 125.4
Depreciation and amortization 4.4 5.2 8.7 11.1
Compensation and other 230.3 232.3 475.0 465.0
Operating expenses 360.4 354.4 737.1 711.0
Total segment expenses 1,098.7 1,054.9 2,193.4 2,129.0
Operating Segments | Corporate        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Benefits, claims and settlement expenses (0.8) (2.0) 22.8 8.2
Commission expense 24.9 19.7 48.7 37.3
Depreciation and amortization 4.2 4.4 8.3 9.0
Interest expense on corporate debt 45.2 41.7 87.4 83.4
Compensation and other 31.3 48.8 81.5 94.4
Operating expenses 105.6 114.6 225.9 224.1
Total segment expenses 104.8 112.6 248.7 232.3
Reconciling items        
Segment, Reconciliation of Other Items from Segments to Consolidated [Line Items]        
Net realized capital gains (losses) expense adjustments 37.4 44.8 65.2 107.4
Market risk benefit derivative settlements (11.0) (11.4) (22.1) (22.7)
Expenses from exited business 49.0 248.7 175.3 293.4
Total expenses $ 3,168.2 $ 3,866.9 $ 6,835.2 $ 7,293.1