Revenue (Disaggregation of Revenue by Geographic Region) (Details) - USD ($) $ in Millions	12 Months Ended
Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 2,844.9	$ 2,734.2	$ 2,371.9
United States
Disaggregation of Revenue [Line Items]
Net sales	1,192.6	1,120.8	990.4
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Net sales	826.8	791.5	679.1
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	597.9	599.2	500.5
Latin America
Disaggregation of Revenue [Line Items]
Net sales	$ 227.6	$ 222.7	$ 201.9

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration