Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Net sales	$ 2,371.9	$ 2,220.3	$ 2,371.2
Cost of sales	1,548.8	1,465.5	1,562.6
Gross profit	823.1	754.8	808.6
Selling, general and administrative	439.8	425.1	460.1
Research and development	54.7	55.5	60.2
Operating income	328.6	274.2	288.3
Other income, net	(12.9)	(3.9)	(15.5)
Interest expense	19.5	20.7	15.2
Earnings before income taxes	322.0	257.4	288.6
Income taxes	89.2	66.6	80.5
Net earnings	$ 232.8	$ 190.8	$ 208.1
Weighted average shares – basic (in shares)	132.6	133.8	137.8
Weighted average shares – diluted (in shares)	134.1	134.8	139.4
Net earnings per share – basic (in dollars per share)	$ 1.76	$ 1.43	$ 1.51
Net earnings per share – diluted (in dollars per share)	1.74	1.42	1.49
Cash dividends paid per share (in dollars per share)	$ 0.700	$ 0.685	$ 0.665