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v3.19.3.a.u2

Selected Quarterly Data - Schedule Of Selected Quarterly Data (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Selected Quarterly Financial Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 1,277.7 | $ 1,128.2 | $ 1,098.9 | $ 973.7 | $ 1,046.5 | $ 920.9 | $ 909.3 | $ 847.5 | $ 4,478.5 | $ 3,724.2 | $ 3,138.2
Gross profit | 896.0 | 785.6 | 759.0 | 669.6 | 735.7 | 642.3 | 632.3 | 593.8 | 3,110.2 | 2,604.1 | 2,202.0
Net income | $ 357.7 | $ 396.8 | $ 318.3 | $ 306.5 | $ 292.5 | $ 292.5 | $ 255.3 | $ 287.6 | $ 1,379.3 | $ 1,127.9 | $ 670.9
Basic net income per share (usd per share) | $ 3.09 | $ 3.44 | $ 2.76 | $ 2.67 | $ 2.56 | $ 2.57 | $ 2.25 | $ 2.55 | $ 11.95 | $ 9.92 | $ 6.01
Diluted net income per share (usd per share) | $ 2.99 | $ 3.33 | $ 2.67 | $ 2.56 | $ 2.45 | $ 2.45 | $ 2.15 | $ 2.44 | $ 11.54 | $ 9.49 | $ 5.77
Excess tax benefits related to share-based compensation arrangements | $ 33.7 | $ 28.8 | $ 11.3 | $ 72.7 | $ 15.8 | $ 24.1 | $ 21.6 | $ 54.7 | $ 146.5 | $ 116.2 | $ 102.8
One-time tax benefit related to the enactment of Swiss tax reform | 0.0 | 51.3 | 0.0 | 0.0 | 2.5 | 4.6 | 0.0 | 0.0 |  |  |
Includes acquisition-related benefits (charges) | (3.1) | 3.0 | (4.1) | (3.0) |  |  |  |  |  |  |
Includes pre-tax litigation (charges) |  |  |  |  | 0.0 | 1.8 | (42.5) | (4.5) |  |  |
Includes charitable foundation contribution expense | $ (5.0) | $ 0.0 | $ 0.0 | $ 0.0 | $ (25.2) | $ 0.0 | $ 0.0 | $ 0.0 |  |  |

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