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Stock-Based Compensation Plans - Summary of Nonvested Restricted Stock (Details) - Non Vested Restricted Stock
shares in Millions
12 Months Ended
Dec. 31, 2025
$ / shares
shares
Shares  
Shares, beginning balance (in shares) | shares 1.3
Shares, granted (in shares) | shares 0.4
Shares, vested (in shares) | shares (0.5)
Shares, forfeited (in shares) | shares (0.1)
Shares, ending balance (in shares) | shares 1.1
Weighted Average Grant Date Fair Value Per Share  
Weighted average grant date fair value per share, beginning balance (in USD per share) | $ / shares $ 330.84
Weighted average grant date fair value per share, granted (in USD per share) | $ / shares 479.70
Weighted average grant date fair value per share, vested (in USD per share) | $ / shares 323.29
Weighted average grant date fair value per share, forfeited (in USD per share) | $ / shares 395.00
Weighted average grant date fair value per share, ending balance (in USD per share) | $ / shares $ 400.12