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COMMON STOCK AND STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
May 31, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
The following table summarizes the Company's total stock-based compensation expense recognized in Cost of sales or Operating overhead expense, as applicable: 
 YEAR ENDED MAY 31,
(Dollars in millions)
202420232022
Stock options(1)
$336 $311 $297 
ESPPs69 72 60 
Restricted stock and restricted stock units(1)(2)
399 372 281 
TOTAL STOCK-BASED COMPENSATION EXPENSE$804 $755 $638 
(1)Expense for stock options includes the expense associated with stock appreciation rights.
(2)For the fiscal years ended May 31, 2024, 2023 and 2022, expense for restricted stock units includes an immaterial amount of expense for PSUs.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The weighted average assumptions used to estimate these fair values were as follows:
 YEAR ENDED MAY 31,
202420232022
Dividend yield1.2 %0.9 %0.8 %
Expected volatility29.3 %27.1 %24.9 %
Weighted average expected life (in years)5.85.85.8
Risk-free interest rate4.3 %3.3 %0.9 %
Schedule of Share-based Compensation, Stock Options, Activity
The following summarizes the stock option transactions under the plan discussed above: 
SHARES(1)
WEIGHTED AVERAGE OPTION PRICE
(In millions)
Options outstanding as of May 31, 202371.0 $94.40 
Exercised(7.0)62.46 
Forfeited(2.5)117.20 
Granted12.2 103.08 
Options outstanding as of May 31, 202473.7 $98.10 
(1)Includes stock appreciation rights transactions.
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
The following summarizes the restricted stock and restricted stock units transactions under the plan discussed above: 
SHARES(1)
WEIGHTED AVERAGE GRANT DATE
FAIR VALUE
(In millions)
Nonvested as of May 31, 20238.3 $126.97
Vested(3.3)116.78
Forfeited(1.2)121.79
Granted5.3 103.13
Nonvested as of May 31, 20249.1 $117.52
(1) Includes an immaterial amount of PSU transactions