Shareholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended	6 Months Ended
	Jan. 31, 2014	Jan. 31, 2014	Jan. 31, 2014	Sep. 25, 2013
Shareholders' Equity [Abstract]
Common stock authorized for repurchase				15,000,000
Stock repurchased during the period, shares		1,300,000	1,639,000
Stock repurchased during the period, value		$ 54.2	$ 66.3
Average price per share		$ 41.70	$ 40.47
Shares with remaining authorization for repurchase under stock repurchase plan	13,700,000	13,700,000	13,700,000
Cash dividend declared per common share	$ 0.14