v3.25.2
Separate Account Balances - Separate Account Asset (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Separate Account Assets    
Total separate account assets per consolidated statements of financial position $ 180,728.0 $ 173,327.1
Fixed maturities    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 35,623.0 33,301.1
Fixed maturities | U.S. government and agencies    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 8,746.8 7,537.1
Fixed maturities | Non-U.S. governments    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 9,292.8 8,461.5
Fixed maturities | States and political subdivisions    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 168.1 170.1
Fixed maturities | Corporate debt securities    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 12,680.8 12,590.9
Fixed maturities | Residential mortgage-backed pass-through securities    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 3,975.1 3,746.0
Fixed maturities | Commercial mortgage-backed securities    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 194.5 201.4
Fixed maturities | Other debt obligations    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 564.9 594.1
Equity securities    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 131,057.0 126,575.0
Real estate    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 441.2 441.3
Other investments    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 8,739.0 8,160.2
Cash and cash equivalents    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position 3,775.3 4,021.7
Other assets    
Separate Account Assets    
Total separate account assets per consolidated statements of financial position $ 1,092.5 $ 827.8