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Common and Preferred Stock
12 Months Ended
Sep. 30, 2020
Class of Stock Disclosures [Abstract]  
Common and Preferred Stock COMMON AND PREFERRED STOCK
At September 30, 2020, 29.4 million shares of common stock were reserved for issuance under the Company's stock-based compensation plans. During 2020, 16.4 million common shares were purchased and 3.4 million treasury shares were reissued. In 2019, 19.9 million common shares were purchased and 1.8 million treasury shares were reissued.

At September 30, 2020 and 2019, the Company had 5.4 million shares of $2.50 par value preferred stock authorized, with none issued.