v3.26.1
Earnings Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Option, RSE and PRSE awards        
Schedule Of Weighted Average Number Of Shares [Line Items]        
Anti-dilutive awards excluded from the calculation of diluted weighted-average shares outstanding (in shares) 2.1 1.8    
Restricted Stock Units (RSUs)        
Schedule Of Weighted Average Number Of Shares [Line Items]        
Anti-dilutive awards excluded from the calculation of diluted weighted-average shares outstanding (in shares)     1.9 1.6