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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Investments: |  |
Fixed maturities, amortized cost | $ 40,342 | $ 38,963
Fixed maturities, amortized cost, allowance for credit loss | 31 | 40
Equity securities, cost | 1,552 | 1,456
Other invested assets, primarily mortgage loans, allowance for credit loss | $ 26 | $ 26
Liabilities and Equity: |  |
Preferred stock, par value (in dollars per share) | $ 0.10 | $ 0.10
Preferred stock, shares authorized (in shares) | 100,000,000 | 100,000,000
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 1,800,000,000 | 1,800,000,000
Common stock, shares issued (in shares) | 269,574,153 | 269,360,973
Treasury stock, shares (in shares) | 15,807,106 | 150,000

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