v3.26.3
Share-Based Compensation - Summary of Stock Option Activity (Details)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Sep. 30, 2026
USD ($)
$ / shares
shares
Shares (in thousands)  
Outstanding at beginning of period (in shares) | shares 1,453
Granted (in shares) | shares 201
Exercised (in shares) | shares (449)
Forfeited (in shares) | shares (7)
Canceled (in shares) | shares (1)
Outstanding at end of period (in shares) | shares 1,197
Exercisable (in shares) | shares 819
Wtd. Avg. Exercise Price  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 233.92
Granted (in dollars per share) | $ / shares 402.20
Exercised (in dollars per share) | $ / shares 211.46
Forfeited (in dollars per share) | $ / shares 334.17
Canceled (in dollars per share) | $ / shares 350.76
Outstanding at end of period (in dollars per share) | $ / shares 270.06
Exercisable (in dollars per share) | $ / shares $ 233.57
Wtd. Avg. Remaining Contractual Term (years)  
Outstanding at end of period 5 years 6 months
Exercisable 4 years 2 months 12 days
Aggregate Intrinsic Value of In-The-Money Options (in millions)  
Outstanding at end of period | $ $ 198.0
Exercisable | $ $ 165.0