Weighted Average Common Shares (Tables)

6 Months Ended

Mar. 31, 2013

Weighted Average Number of Shares Outstanding Reconciliation [Abstract]

Schedule Of Basic And Diluted Earnings Per Share Reconciliation

	Three Months Ended March 31,		Six Months Ended March 31,
	2012	2013	2012	2013
Basic shares outstanding	732.7	720.5	733.5	721.4
Dilutive shares	4.1	4.8	4.0	4.7
Diluted shares outstanding	736.8	725.3	737.5	726.1