Condensed Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 1,047.7	$ 986.7
Cost of sales	529.7	495.2
Gross profit	518.0	491.5
Operating and administrative expenses	305.9	290.2
(Gain) loss on sale of property and equipment	(0.4)	0.1
Operating income	212.5	201.2
Interest income	0.1	0.1
Interest expense	(1.7)	(1.4)
Earnings before income taxes	210.9	199.9
Income tax expense	76.7	73.7
Net earnings	$ 134.2	$ 126.2
Basic net earnings per share (in dollars per share)	$ 0.46	$ 0.44
Diluted net earnings per share (in dollars per share)	$ 0.46	$ 0.44
Basic weighted average shares outstanding (in shares)	289,242,447	288,808,019
Diluted weighted average shares outstanding (in shares)	289,455,941	289,123,603