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Common Shares and Share-Based Compensation
3 Months Ended
Dec. 31, 2022
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]  
Common Shares and Share-Based Compensation COMMON SHARES AND SHARE-BASED COMPENSATIONReconciliations of weighted-average shares for basic and diluted earnings per common share follow. Earnings allocated to participating securities were inconsequential.
Three Months Ended
December 31,
 2021 2022 
Basic shares outstanding594.6 583.6 
Dilutive shares3.5 3.1 
Diluted shares outstanding598.1 586.7