v3.26.3
Stock-Based Compensation, Option Plans (Details) - Stock Options - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Stock-Based Compensation        
Total intrinsic value of stock options exercised (in dollars) $ 424.6 $ 437.1 $ 1,544.7 $ 1,338.8
Total fair value of stock options vested (in dollars) 0.1 $ 0.9 135.4 $ 113.8
Total compensation cost related to non-vested options not yet recognized (in dollars) $ 483.4   $ 483.4  
Weighted average expected amortization period     3 years 8 months 1 day