Capital Stock (Tables)

12 Months Ended

Sep. 30, 2021

Equity [Abstract]

Schedule of Common Stock Outstanding

A summary of the changes in common shares in fiscal year 2021 is presented below:

Fiscal Year Ended 30 September	2021	2020	2019
Number of common shares outstanding, beginning of year	221,017,459	220,415,262	219,515,245
Issuance of treasury shares for stock option and award plans	379,296	602,197	900,017
Number of common shares outstanding, end of year	221,396,755	221,017,459	220,415,262