v3.25.2
Investments - Mortgage Loans (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Commercial mortgage loans          
Mortgage loan disclosures          
Mortgage loans, purchased $ 30.4   $ 70.3 $ 57.0  
Mortgage loans, sold 40.3   109.2 0.8  
Mortgage loans, Total amortized cost $ 16,829.3   $ 16,829.3   $ 17,072.7
Percent of mortgage loans (as a percent) 100.00%   100.00%   100.00%
Commercial mortgage loans | Office          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 3,151.8   $ 3,151.8   $ 3,182.9
Percent of mortgage loans (as a percent) 18.70%   18.70%   18.50%
Commercial mortgage loans | Retail          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 1,426.3   $ 1,426.3   $ 1,476.9
Percent of mortgage loans (as a percent) 8.50%   8.50%   8.70%
Commercial mortgage loans | Industrial          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 4,363.1   $ 4,363.1   $ 4,364.5
Percent of mortgage loans (as a percent) 25.90%   25.90%   25.60%
Commercial mortgage loans | Apartments          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 7,072.7   $ 7,072.7   $ 7,220.4
Percent of mortgage loans (as a percent) 42.00%   42.00%   42.30%
Commercial mortgage loans | Hotel          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 31.5   $ 31.5   $ 65.0
Percent of mortgage loans (as a percent) 0.20%   0.20%   0.40%
Commercial mortgage loans | Mixed use/other          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 783.9   $ 783.9   $ 763.0
Percent of mortgage loans (as a percent) 4.70%   4.70%   4.50%
Commercial mortgage loans | New England          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 355.4   $ 355.4   $ 347.2
Percent of mortgage loans (as a percent) 2.10%   2.10%   2.00%
Commercial mortgage loans | Middle Atlantic          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 4,633.7   $ 4,633.7   $ 4,714.9
Percent of mortgage loans (as a percent) 27.60%   27.60%   27.70%
Commercial mortgage loans | East North Central          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 466.5   $ 466.5   $ 591.0
Percent of mortgage loans (as a percent) 2.80%   2.80%   3.50%
Commercial mortgage loans | West North Central          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 378.4   $ 378.4   $ 394.0
Percent of mortgage loans (as a percent) 2.20%   2.20%   2.30%
Commercial mortgage loans | South Atlantic          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 2,995.9   $ 2,995.9   $ 2,987.7
Percent of mortgage loans (as a percent) 17.80%   17.80%   17.50%
Commercial mortgage loans | East South Central          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 420.7   $ 420.7   $ 417.7
Percent of mortgage loans (as a percent) 2.50%   2.50%   2.40%
Commercial mortgage loans | West South Central          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 1,357.1   $ 1,357.1   $ 1,310.5
Percent of mortgage loans (as a percent) 8.10%   8.10%   7.70%
Commercial mortgage loans | Mountain          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 1,064.4   $ 1,064.4   $ 979.5
Percent of mortgage loans (as a percent) 6.30%   6.30%   5.70%
Commercial mortgage loans | Pacific          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 4,650.6   $ 4,650.6   $ 4,851.9
Percent of mortgage loans (as a percent) 27.60%   27.60%   28.40%
Commercial mortgage loans | International          
Mortgage loan disclosures          
Mortgage loans, Total amortized cost $ 506.6   $ 506.6   $ 478.3
Percent of mortgage loans (as a percent) 3.00%   3.00%   2.80%
Residential mortgage loans          
Mortgage loan disclosures          
Mortgage loans, purchased $ 385.9 $ 49.1 $ 650.9 87.5  
Mortgage loans, sold 5.9 $ 7.9 9.8 $ 12.8  
Mortgage loans, Total amortized cost $ 4,044.9   $ 4,044.9   $ 3,607.4