Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Consolidated Balance Sheets [Abstract]
Common stock, par value (in Dollars per share)	$ 0.00015625	$ 0.00015625
Common stock, shares authorized (in Shares)	1,280.0	1,280.0
Common stock, shares issued (in Shares)	274.4	271.4
Common stock, shares outstanding (in Shares)	247.0	256.2
Treasury stock, shares (in Shares)	27.4	15.2