Condensed Consolidated Statements of Earnings - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 1,509.0	$ 1,368.4	$ 2,876.0	$ 2,677.7
Cost of sales	837.4	727.2	1,567.6	1,411.8
Gross profit	671.6	641.2	1,308.4	1,265.9
Operating and administrative expenses	355.3	366.7	721.2	730.3
(Gain) loss on sale of property and equipment	0.3	(0.5)	(0.1)	(0.8)
Operating income	316.0	275.0	587.3	536.4
Interest income	0.1	0.1	0.2	0.2
Interest expense	(2.4)	(3.7)	(4.6)	(7.7)
Earnings before income taxes	313.7	271.4	582.9	528.9
Income tax expense	74.8	66.8	141.4	130.2
Net earnings	$ 238.9	$ 204.6	$ 441.5	$ 398.7
Basic net earnings per share (in dollars per share)	$ 0.42	$ 0.36	$ 0.77	$ 0.70
Diluted net earnings per share (in dollars per share)	$ 0.42	$ 0.36	$ 0.77	$ 0.69
Basic weighted average shares outstanding (in shares)	573,197,303	573,159,138	573,550,730	572,669,693
Diluted weighted average shares outstanding (in shares)	574,952,000	574,551,349	575,128,270	573,775,059