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)

v3.8.0.1
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, 2017
[1]
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
[1]
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 1,093.3 $ 1,085.4 $ 1,146.9 $ 1,102.1 $ 1,045.0 $ 1,122.0 $ 1,201.8 $ 1,119.6 $ 4,427.7 $ 4,488.4 $ 4,469.0
Gross profit 883.5 870.0 928.1 897.5 848.9 912.9 965.5 906.5 3,579.1 3,633.8 3,613.0
Net income (loss) $ (63.4) $ 54.5 $ 137.6 $ 85.2 $ 99.4 $ 87.7 $ (22.9) $ 95.8 $ 213.9 $ 260.0 $ 339.1
Earnings (loss) per share                      
Basic $ (0.87) $ 0.69 $ 1.69 $ 1.03 $ 1.19 $ 1.06 $ (0.28) $ 1.16 $ 2.70 $ 3.13 $ 4.11
Diluted $ (0.87) $ 0.66 $ 1.61 $ 0.98 $ 1.16 $ 1.01 $ (0.28) $ 1.12 $ 2.58 $ 3.02 $ 3.97
[1] Includes the impact of the U.S. Tax Reform enacted during the fourth quarter of 2017, as described further in Note 12, Income Taxes.