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Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Statement of Financial Position [Abstract] |  |
Investment securities, available for sale, amortized cost | $ 19,054 | $ 10,691
Investment securities, held to maturity, fair value | 12,955 | 14,308
Equity and other securities, cost | $ 1,007 | $ 1,125
Preferred stock, par value (in USD per share) | $ 1.00 |
Preferred stock, shares authorized (in shares) | 20,000,000 |
Common stock, par value (in USD per share) | $ 0.50 | $ 0.50
Common stock, shares authorized (in shares) | 250,000,000 | 250,000,000
Common stock, shares issued (in shares) | 179,436,779 | 179,436,779
Common stock issuable (in shares) | 11,642 | 12,217
Treasury stock, common shares (in shares) | 13,922,820 | 13,300,298

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