Annual report pursuant to Section 13 and 15(d)

Quarterly Information (Unaudited) - Quarterly Net Income, Basic Earnings Per Share and Diluted Earnings Per Share (Detail)

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Quarterly Information (Unaudited) - Quarterly Net Income, Basic Earnings Per Share and Diluted Earnings Per Share (Detail) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2020
 [1]
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
 [1]
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 1,410.7 $ 1,521.8 $ 1,346.9 $ 1,262.4 $ 1,220.3 $ 1,244.5 $ 1,240.1 $ 1,172.2 $ 5,541.8 $ 4,877.1 $ 4,891.8
Gross profit 1,101.3 1,199.1 1,074.1 1,016.7 990.5 1,001.1 996.9 930.6 4,391.2 3,919.1 3,972.5
Net income $ 73.8 $ 138.1 $ 115.1 $ 45.6 $ 56.7 $ 81.5 $ 76.5 $ 96.3 $ 372.6 $ 311.0 $ 296.6
Earnings per share:                      
Basic $ 0.61 $ 1.07 $ 0.84 $ 0.33 $ 0.41 $ 0.59 $ 0.56 $ 0.70 $ 2.83 $ 2.26 $ 2.12
Diluted $ 0.59 $ 1.04 $ 0.82 $ 0.32 $ 0.40 $ 0.58 $ 0.54 $ 0.66 $ 2.77 $ 2.20 $ 1.98
[1] The fourth quarter of 2019 includes a net favorable adjustment to our unrecognized tax benefit liability of $11.4 million primarily attributable to transfer pricing matters in various foreign jurisdictions, and a legal accrual of $40 million relating to the SEC and DOJ investigations relating to the FCPA matter in China as described further in Note 7, Contingencies.