CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Income Statement [Abstract]
Net sales	$ 672.7	$ 701.4
Cost of sales	441.4	463.0
Gross profit	231.3	238.4
Operating expenses	142.6	139.7
Operating income	88.7	98.7
Interest expense	4.7	4.2
Other income, net	(2.6)	(1.9)
Earnings before income taxes	86.6	96.4
Income taxes	21.6	22.6
Net earnings	$ 65.0	$ 73.8
Weighted average shares - basic (in shares)	126.9	128.8
Weighted average shares - diluted (in shares)	128.6	131.0
Net earnings per share - basic (in usd per share)	$ 0.51	$ 0.57
Net earnings per share - diluted (in usd per share)	$ 0.51	$ 0.56