CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Income Statement [Abstract]
Net sales	$ 679.1	$ 662.0	$ 1,315.8	$ 1,334.7
Cost of sales	453.8	438.8	867.8	880.3
Gross profit	225.3	223.2	448.0	454.4
Operating expenses	149.2	138.7	284.7	281.4
Operating income	76.1	84.5	163.3	173.0
Interest expense	3.3	4.5	6.8	9.0
Other (income) expense, net	(1.1)	(2.8)	0.4	(5.5)
Earnings before income taxes	73.9	82.8	156.1	169.5
Income taxes	17.7	18.4	38.0	40.0
Net earnings	$ 56.2	$ 64.4	$ 118.1	$ 129.5
Weighted average shares - basic (in shares)	126.6	127.1	126.7	127.0
Weighted average shares - diluted (in shares)	128.2	128.9	128.2	128.8
Net earnings per share - basic (in usd per share)	$ 0.44	$ 0.51	$ 0.93	$ 1.02
Net earnings per share - diluted (in usd per share)	$ 0.44	$ 0.50	$ 0.92	$ 1.01