Stockholders' Equity (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Feb. 07, 2014	Jan. 31, 2014	Jan. 31, 2013
Stockholders' Equity Note [Abstract]
Share Repurchase Program, maximum amount authorized		$ 500.0
Share Repurchase Program, remaining authorized amount		211.5
Number of common stock repurchased, shares		396	460
Cost of common stock repurchased		50.0	44.4
Average purchase price per share		$ 126.21	$ 96.34
Dividends on common stock	$ 1.4
Cash dividend, per share	$ 0.03
Dividends payable, date of record	Jan. 24, 2014