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Share-Based Compensation (Tables)
 12 Months Ended
Sep. 30, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Recognized Share-Based Compensation Cost
Share-based compensation cost recognized on the consolidated income statements is summarized below:
202520242023
Before-tax share-based compensation cost(A)
$76.6 $61.7 $60.7 
Income tax benefit(18.3)(14.9)(14.6)
After-tax share-based compensation cost$58.3 $46.8 $46.1 
(A)Fiscal year 2025 includes noncash executive separation costs of $22.4 to accelerate vesting of share-based awards. Refer to the "Shareholder Activism-Related Costs" disclosure in Note 25, Supplemental Information, for additional information.
Schedule of Assumptions for Fair Value of Market-Based Deferred Stock Units The calculation of the fair value of market-based deferred stock units used the following assumptions:
202520242023
Expected volatility30.3%25.0%32.5%
Risk-free interest rate4.1%4.3%4.0%
Expected dividend yield2.1%2.6%2.4%
Schedule of Deferred Stock Units and Restricted Stock Activity
A summary of deferred stock unit activity in fiscal year 2025 is presented below:
Shares (000)Weighted Average
Grant-Date Fair Value
Deferred stock units outstanding at 30 September 2024758 $293.99 
Granted239 385.22 
Paid out(314)288.02 
Forfeited(50)321.37 
Deferred stock units outstanding at 30 September 2025633 $329.23 
Schedule of Stock Option Activity
A summary of stock option activity in fiscal year 2025 is presented below:
Shares (000)Weighted Average
Exercise Price
Stock options outstanding and exercisable at 30 September 202454 $134.54 
Exercised(54)134.54 
Stock options outstanding and exercisable at 30 September 2025
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