Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2012

Earnings per Share [Abstract]

Weighted average common shares used in the computations of basic and diluted earnings per share

	Three Months Ended March 31,				Six Months Ended March 31,
	2012		2011		2012		2011
Average common shares outstanding		206,426		220,894		210,385		224,528
Dilutive share equivalents from share-based plans		3,377		4,573		3,585		5,001
Average common and common equivalent shares outstanding – assuming dilution		209,803		225,467		213,970		229,529