Condensed Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Income Statement [Abstract]
Net sales	$ 608.2	$ 571.3	$ 1,711.8	$ 1,626.5
Cost of sales	396.7	374.7	1,118.2	1,081.0
Gross profit	211.5	196.6	593.6	545.5
Operating expenses	123.0	121.7	359.3	361.4
Operating income	88.5	74.9	234.3	184.1
Other income, net	(0.6)	(2.5)	(10.4)	(6.6)
Interest expense	4.8	5.3	14.4	15.8
Earnings before income taxes	84.3	72.1	230.3	174.9
Income taxes	24.2	17.3	65.7	43.6
Net earnings	$ 60.1	$ 54.8	$ 164.6	$ 131.3
Weighted average shares - basic (in shares)	132.5	133.9	133.0	133.8
Weighted average shares - diluted (in shares)	134.1	134.7	134.4	134.7
Net earnings per share - basic (in usd per share)	$ 0.45	$ 0.41	$ 1.24	$ 0.98
Net earnings per share - diluted (in usd per share)	0.45	0.41	1.23	0.97
Cash dividends paid per share (in usd per share)	$ 0.175	$ 0.170	$ 0.525	$ 0.510