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CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Investments: |  |
Fixed maturities, available for sale, allowance for credit losses | $ 33.0 | $ 37.1
Fixed maturities, available for sale, amortized cost | 25,219.3 | 25,151.0
Mortgage loans, allowance for credit losses | 21.0 | 13.6
Investments held by variable interest entities, allowance for credit losses | 0.5 | 1.3
Investments held by variable interest entities, amortized cost | 298.6 | 437.0
Reinsurance receivables, allowance for current expected credit losses | $ 1.0 | $ 3.0
Shareholders' equity: |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 8,000,000,000 | 8,000,000,000
Common stock, shares issued (in shares) | 95,840,989 | 101,618,957
Common stock, shares outstanding (in shares) | 95,840,989 | 101,618,957

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