Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2022

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:

	2022	2021	2020
Before-tax share-based compensation cost	$49.5	$44.5	$55.8
Income tax benefit	(12.1)	(11.0)	(13.0)
After-tax share-based compensation cost	$37.4	$33.5	$42.8

Schedule of Assumptions for Fair Value of Market-Based Deferred Stock Units

The calculation of the fair value of these market-based deferred stock units used the following assumptions:

	2022		2021		2020
Expected volatility	30.5	%	29.9	%	17.8	%
Risk-free interest rate	0.8	%	0.2	%	1.6	%
Expected dividend yield	2.1	%	2.1	%	2.4	%

Schedule of Deferred Stock Units and Restricted Stock Activity

A summary of deferred stock unit activity in fiscal year 2022 is presented below:

	Shares (000)	Weighted Average Grant-Date Fair Value
Deferred stock units outstanding at 30 September 2021	854	$194.12
Granted	195	329.65
Paid out	(343)	196.95
Forfeited	(40)	266.51
Adjusted	64	161.64
Deferred stock units outstanding at 30 September 2022	730	$222.13

Schedule of Stock Option Activity

A summary of stock option activity in fiscal year 2022 is presented below:

	Shares (000)	Weighted Average Exercise Price
Stock options outstanding and exercisable at 30 September 2021	801	$99.79
Exercised	(237)	84.75
Stock options outstanding and exercisable at 30 September 2022	564	$106.14