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Consolidated Balance Sheets (Parenthetical) - $ / shares | Dec. 31, 2024 | Dec. 31, 2023
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Statement of Financial Position [Abstract] |  |
Preferred stock, par value (in dollars per share) | $ 1 | $ 1
Preferred stock, authorized shares (in shares) | 5,000,000.0 | 5,000,000.0
Preferred stock, unissued shares (in shares) | 5,000,000.0 | 5,000,000.0
Common stock, par value (in dollars per share) | $ 1 | $ 1
Common stock, authorized (in shares) | 200,000,000.0 | 200,000,000.0
Common stock, outstanding (in shares) | 44,400,000 | 47,700,000
Treasury (in shares) | 34,200,000 | 30,900,000

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