Weighted Average Common Shares

6 Months Ended

Mar. 31, 2013

Weighted Average Number of Shares Outstanding Reconciliation [Abstract]

Weighted Average Common Shares

Reconciliations of weighted average shares for basic and diluted earnings per common share follow (in millions). Earnings allocated to participating securities were inconsequential.

	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