Stock-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2025

Share-Based Payment Arrangement [Abstract]

Share-Based Payment Arrangement, Expensed and Capitalized, Amount

The following table summarizes stock-based compensation related charges and benefits (in millions):

	Year Ended September 30,
	2025		2024		2023
Compensation expense	$	126	$	100	$	101
Income tax benefit resulting from share-based compensation arrangements	19		25		25
Tax impact from exercise and vesting of equity settled awards	14		1		7

Summary of Nonvested Restricted Stock Awards

A summary of non-vested restricted stock awards at September 30, 2025, and changes for the year then ended, is presented below:

	Weighted Average Price		Shares/Units Subject to Restriction
Non-vested, September 30, 2024	$	59.29	2,904,103
Granted	83.08		1,297,984
Vested	62.59		(1,231,731)
Forfeited	65.78		(423,369)
Non-vested, September 30, 2025	$	69.68	2,546,987

Schedule of Share-Based Payment Award, Performance Share, Valuation Assumptions

The following table summarizes the assumptions used in determining the fair value of performance share awards granted:

	Year Ended September 30,
	2025	2024	2023
Risk-free interest rate	4.01%	4.21%	4.04%
Expected volatility of the Company’s stock	28.50%	27.20%	33.50%

Summary of Nonvested PSUs

A summary of the status of the Company’s non-vested PSU's at September 30, 2025, and changes for the year then ended, is presented below:

	Weighted Average Price		Shares/Units Subject to PSU
Non-vested, September 30, 2024	$	71.20	795,633
Granted	97.77		375,308
Vested	90.50		(230,999)
Forfeited	80.05		(27,178)
Non-vested, September 30, 2025	$	76.97	912,764

Assumptions Used in Black-Scholes Option Valuation Model

The following table summarizes the assumptions used in determining the fair value of stock options granted:

	Year Ended September 30,
	2025	2024	2023
Expected life of option (years)	5.7	5.7	5.8
Risk-free interest rate	4.07%	3.86%	3.59%
Expected volatility of the Company’s stock	30.20%	29.80%	29.40%
Expected dividend yield on the Company’s stock	1.83%	2.77%	2.10%

Summary of Stock Option Activity

A summary of stock option activity at September 30, 2025, and changes for the year then ended, is presented below:

	Weighted Average Option Price		Shares Subject to Option	Weighted Average Remaining Contractual Life (years)	Aggregate Intrinsic Value (in millions)
Outstanding, September 30, 2024	$	46.51	4,244,782
Granted	82.15		530,251
Exercised	39.99		(2,812,821)
Forfeited or expired	67.00		(66,609)
Outstanding, September 30, 2025	$	65.42	1,895,603	8.07	$	84
Exercisable, September 30, 2025	$	62.05	688,036	7.31	$	33

The following table summarizes additional stock option information:

	Year Ended September 30,
	2025		2024		2023
Weighted-average grant-date fair value of options granted	$	23.97	$	13.74	$	18.21
Intrinsic value of options exercised (in millions)	130		22		27