Segment Reporting (Geographic Sales By Origination And Property, Plant And Equipment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 660.1	$ 608.2	$ 550.6	$ 553.0	$ 593.8	$ 571.3	$ 517.2	$ 538.0	$ 2,371.9	$ 2,220.3	$ 2,371.2
Property, Plant & Equipment, Net	469.8				470.6				484.6	469.8	470.6
United States
Segment Reporting Information [Line Items]
Net sales									990.1	937.3	1,007.3
Property, Plant & Equipment, Net	192.9				209.0				192.7	192.9	209.0
Europe
Segment Reporting Information [Line Items]
Net sales									638.1	632.7	671.3
Property, Plant & Equipment, Net	148.1				141.7				163.3	148.1	141.7
Asia Pacific
Segment Reporting Information [Line Items]
Net sales									500.5	449.9	470.7
Property, Plant & Equipment, Net	60.1				63.8				55.3	60.1	63.8
Other
Segment Reporting Information [Line Items]
Net sales									243.2	200.4	221.9
Property, Plant & Equipment, Net	$ 68.7				$ 56.1				$ 73.3	$ 68.7	$ 56.1