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SHARE-BASED AND OTHER COMPENSATION, Restricted Stock Awards (Details) - Restricted Stock Units - $ / shares
shares in Millions
12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Weighted-average grant date fair value (in dollars per share):      
Vested (in usd per share) $ 108.28 $ 115.79 $ 98.52
2012 Stock Incentive Plan | Employees and Directors      
Shares/Units (in shares):      
Nonvested - beginning of period (in shares) 9.0    
Granted (in shares) 1.9    
Vested (in shares) (2.5)    
Forfeited (in shares) (0.3)    
Nonvested - end of period (in shares) 8.1 9.0  
Weighted-average grant date fair value (in dollars per share):      
Nonvested - beginning of period (in usd per share) $ 87.43    
Granted (in usd per share) 108.28    
Vested (in usd per share) 67.53    
Forfeited (in usd per share) 99.84    
Nonvested - end of period (in usd per share) $ 97.97 $ 87.43