Weighted Average Common Shares

6 Months Ended

Mar. 31, 2012

Weighted Average Common Shares [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,
	2011	2012	2011	2012
Basic shares outstanding	752.1	732.7	752.2	733.5
Dilutive shares	5.2	4.1	5.5	4.0
Diluted shares outstanding	757.3	736.8	757.7	737.5