Capital Stock (Tables)

12 Months Ended

Sep. 30, 2011

Capital Stock [Abstract]

Changes In Common Shares

Year ended 30 September	2011			2010		2009
Number of Common Shares Outstanding
Balance, beginning of year		213,802,865			211,260,264		209,334,627
Purchase of treasury shares		(7,433,612	)		—		—
Issuance of treasury shares for stock option and award plans		3,816,003			2,542,601		1,925,637
Balance, end of year		210,185,256			213,802,865		211,260,264