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Stock-Based Compensation (Tables)
12 Months Ended
Sep. 30, 2024
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,
202420232022
Compensation expense$100 $101 $104 
Income tax benefit resulting from share-based compensation arrangements25 25 26 
Tax impact from exercise and vesting of equity settled awards12 
Summary of Nonvested Restricted Stock Awards
A summary of non-vested restricted stock awards at September 30, 2024, and changes for the year then ended, is presented below:
Weighted
Average
Price
Shares/Units
Subject to
Restriction
Non-vested, September 30, 2023$64.90 2,807,113 
Granted55.05 2,090,092 
Vested63.75 (1,315,306)
Forfeited61.42 (677,796)
Non-vested, September 30, 2024$59.29 2,904,103 
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,
 202420232022
Risk-free interest rate4.21%4.04%0.99%
Expected volatility of the Company’s stock27.20%33.50%30.00%
Summary of Nonvested PSUs
A summary of the status of the Company’s non-vested PSU's at September 30, 2024, and changes for the year then ended, is presented below:
Weighted
Average
Price
Shares/Units
Subject to
PSU
Non-vested, September 30, 2023$71.77 867,524 
Granted54.13 370,307 
Vested50.53 (299,746)
Forfeited73.83 (142,452)
Non-vested, September 30, 2024$71.20 795,633 
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,
 202420232022
Expected life of option (years)5.75.86.0
Risk-free interest rate3.86%3.59%1.35%
Expected volatility of the Company’s stock29.80%29.40%27.80%
Expected dividend yield on the Company’s stock2.77%2.10%1.71%
Summary of Stock Option Activity
A summary of stock option activity at September 30, 2024, 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, 2023$45.44 4,919,916 
Granted53.52 652,702 
Exercised40.39 (1,004,234)
Forfeited or expired63.47 (323,602)
Outstanding, September 30, 2024$46.51 4,244,782 5.72$133 
Exercisable, September 30, 2024$41.21 3,141,132 4.16$115 

The following table summarizes additional stock option information:
Year Ended September 30,
202420232022
Weighted-average grant-date fair value of options granted$13.74 $18.21 $18.59 
Intrinsic value of options exercised (in millions)22 27 19