Employee Benefit Plans (Components Of Net Periodic Pension Costs) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Service cost	$ 4.7	$ 4.8	$ 13.8	$ 15.1
Interest cost	4.8	4.8	14.3	14.5
Expected return on assets	(7.2)	(7.4)	(21.7)	(22.3)
Prior service cost and transition amortization	0.1	0.2	0.4	0.5
Settlement cost	0.0	0.0	0.0	3.9
Actuarial loss amortization	2.1	1.8	6.4	5.5
Net periodic benefit cost	$ 4.5	$ 4.2	$ 13.2	$ 17.2