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SHAREHOLDER’S EQUITY (Tables)
12 Months Ended
Sep. 30, 2021
Equity [Abstract]  
Schedule of Activity of Common Stock Repurchase Program The following summarizes the activity of common stock repurchases under the program for the year ended September 30, 2021 and 2020:
20212020
(in millions except per share data)
Number of
Shares
Repurchased
Average
Price
Per Share
Amount
Number of
Shares
Repurchased
Average
Price
Per Share
Amount
Open Market Purchases0.9 $93.13 $80.3 4.1 $56.97 $230.6 
Private Purchases0.7 66.63 45.5 0.1 62.30 9.2 
ASR— — — 2.0 61.47 124.8 
Total Purchases1.6 $81.43 $125.8 6.2 $58.57 $364.6