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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Preferred stock, par value | $ 1 | $ 1
Preferred stock, authorized shares | 10,000,000 | 10,000,000
Preferred stock, issued | 0 | 0
Preferred stock, outstanding | 0 | 0
Common stock, par value | $ 1 | $ 1
Common stock, authorized shares | 400,000,000 | 400,000,000
Common stock, issued shares | 283,186,115 | 283,186,115
Accumulated other comprehensive income (loss), taxes | $ 8 | $ 8
Treasury stock, shares | 228,329,115 | 228,630,003
Non Variable Interest Entity [Member] |  |
Fixed-maturity securities held as available-for-sale, net of allowance for credit losses | $ 3 | $ 0
Fixed-maturity securities held as available-for-sale, amortized cost | 2,710 | 2,016
Investments pledged as collateral, amortized cost | 0 | 4
Short-term investments, amortized cost | 441 | 374
Premiums receivable (net of allowance for credit losses) | 5 | 5
Medium-term notes, financial instruments carried at fair value | $ 99 | $ 98

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