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Consolidated Balance Sheets - (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Statement of Financial Position [Abstract] |  |
Fixed maturities securities at amortized cost | $ 41,032 | $ 39,952
Marketable securities fixed maturities allowance for credit loss | 1 | 18
Equity securities at cost | 703 | 964
Mortgage loans on real estate commercial and consumer allowance for credit loss | 24 | 16
Allowance for uncollectible reinsurance | 22 | 21
Allowance for uncollectible insurance receivables | 29 | 29
Accumulated depreciation on property and equipment | 280 | 255
Due to related parties | $ 26 | $ 56
Common stock, par value (in usd per share) | $ 2.50 | $ 2.50
Common stock, shares authorized (in shares) | 500,000,000 | 500,000,000
Common stock, shares issued (in shares) | 273,040,243 | 273,040,243
Common stock, shares outstanding (in shares) | 270,895,902 | 271,363,999
Treasury stock, shares (in shares) | 2,144,341 | 1,676,244

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