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Share-Based Payments (Details 1) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | $ (72.6) | $ (69.2)
Subtotal | 78.5 | 76.4
Capitalized share-based compensation costs | (2.6) | (1.5)
Share-based compensation expense included in total costs and expenses | 75.9 | 74.9
Market stock units |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 16.5 | 19.1
Time-vested restricted stock units |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 42.8 | 37.5
Cash settled performance shares |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 0.0 | (1.6)
Performance units |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 0.0 | (0.1)
Performance stock units settled in stock |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 6.3 | 10.3
Performance stock units settled in cash |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | 6.0 | 8.9
Employee stock purchase plan |  |
Summary of share based compensation expense associated with different programs [Abstract] |  |
Share-based compensation expense | $ 6.9 | $ 2.3

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