v3.25.2
Segment Information - Reconciliation of Segment Operating Revenues Consolidated (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Total revenues $ 3,671.3 $ 4,310.8 $ 7,367.2 $ 8,364.1
Operating Segments        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Revenue from contracts with external customers 2,477.6 2,986.9 5,305.2 5,723.3
Adjustments for revenue from contracts with external customers not included in operating revenues (8.5) (10.9) (19.1) (27.0)
Net investment income included in operating revenues 1,175.6 1,040.2 2,327.4 2,076.0
Operating revenues from equity method investments 44.9 56.5 89.4 105.1
Total revenues 3,689.6 4,072.7 7,702.9 7,877.4
Operating Segments | Retirement and Income Solutions        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Revenue from contracts with external customers 888.8 1,447.9 2,147.8 2,660.2
Adjustments for revenue from contracts with external customers not included in operating revenues (17.1) (18.9) (34.5) (38.3)
Net investment income included in operating revenues 838.5 745.8 1,660.5 1,472.6
Total revenues 1,718.3 2,194.3 3,793.5 4,126.7
Operating Segments | Principal Asset Management        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Revenue from contracts with external customers 460.8 453.9 910.8 891.4
Net investment income included in operating revenues 119.1 102.2 236.7 197.2
Operating revenues from equity method investments 45.0 56.6 89.6 105.3
Total revenues 703.4 684.8 1,390.2 1,340.1
Operating Segments | Benefits and Protection        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Revenue from contracts with external customers 1,065.3 1,028.2 2,120.8 2,056.1
Adjustments for revenue from contracts with external customers not included in operating revenues 8.6 8.0 15.4 11.3
Net investment income included in operating revenues 170.5 149.1 320.3 301.6
Total revenues 1,246.3 1,187.2 2,460.5 2,373.1
Operating Segments | Corporate        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Revenue from contracts with external customers 62.7 56.9 125.8 115.6
Net investment income included in operating revenues 47.5 43.1 109.9 104.6
Operating revenues from equity method investments (0.1) (0.1) (0.2) (0.2)
Total revenues 21.6 6.4 58.7 37.5
Inter-segment eliminations        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Inter-segment revenues 168.3 161.3 335.7 306.5
Total revenues (168.3) (161.3) (335.7) (306.5)
Inter-segment eliminations | Retirement and Income Solutions        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Inter-segment revenues 8.1 19.5 19.7 32.2
Inter-segment eliminations | Principal Asset Management        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Inter-segment revenues 78.5 72.1 153.1 146.2
Inter-segment eliminations | Benefits and Protection        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Inter-segment revenues 1.9 1.9 4.0 4.1
Inter-segment eliminations | Corporate        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Inter-segment revenues 79.8 67.8 158.9 124.0
Total revenues (168.3) (161.3) (335.7) (306.5)
Reconciling items        
Operating Revenue And Profit (Loss) From Segments To Consolidated        
Net realized capital gains (losses), net of related revenue adjustments (7.3) 23.2 (109.0) 54.2
Revenues from exited business 15.9 244.8 (172.1) 487.1
Adjustments related to equity method investments (15.9) (18.5) (32.5) (31.9)
Market risk benefit derivative settlements $ (11.0) $ (11.4) $ (22.1) $ (22.7)