Employee Benefit Plans (Obligations And Funded Status Of Company's Pension Plans) (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Change in projected benefit obligation:
Projected benefit obligation, beginning of year	$ 537.3	$ 498.7
Service cost	8.3	18.4	$ 20.4
Interest cost	13.5	18.9	19.1
Participant contributions	0.8	1.0
Actuarial (gain) loss	(22.3)	50.0
Currency exchange rates	2.7	(17.2)
Benefits paid	(25.2)	(32.5)
Projected benefit obligation, end of year	515.1	537.3	498.7
Change in fair value of plan assets:
Fair value of plan assets, beginning of year	455.5	478.5
Actual return on plan assets	28.4	22.2
Company contributions	3.1	4.2
Participant contributions	0.8	1.0
Currency exchange rates	2.5	(17.9)
Benefits paid	(25.2)	(32.5)
Fair value of plan assets, end of year	465.1	455.5	$ 478.5
Funded status:
Projected benefit obligation in excess of plan assets at end of fiscal year	(50.0)	(81.8)
Amounts recognized on the Consolidated Balance Sheets consist of:
Other long-term assets	5.7	1.4
Other current liabilities	(1.6)	(1.5)
Other long-term liabilities	(54.1)	(81.7)
Net recognized liability	$ (50.0)	$ (81.8)

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

Name:	us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.