Stockholders' Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Apr. 29, 2013
Stockholders Equity Note [Line Items]
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		$ 500
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	295.9
Stock Repurchased During Period, Shares	1.2
Stock Repurchased During Period, Value	19.7
SharesRepurchasedNot YetSettled	0.1
Shares Repurchased Not Yet Settled, Value	$ 1.7