STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Feb. 28, 2023

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: 

	THREE MONTHS ENDED FEBRUARY 28,				NINE MONTHS ENDED FEBRUARY 28,
(Dollars in millions)	2023		2022		2023		2022
Stock options(1)	$	78	$	75	$	232	$	221
ESPPs	20		15		53		44
Restricted stock and restricted stock units(1)(2)	94		71		271		202
TOTAL STOCK-BASED COMPENSATION EXPENSE	$	192	$	161	$	556	$	467

(1)Expense for stock options includes the expense associated with stock appreciation rights. Accelerated stock option expense is primarily recorded for employees meeting certain retirement eligibility requirements.

(2)Restricted stock units include RSUs and PSUs.

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The weighted average assumptions used to estimate these fair values were as follows:

	NINE MONTHS ENDED FEBRUARY 28,
	2023		2022
Dividend yield	0.9	%	0.8	%
Expected volatility	27.1	%	24.9	%
Weighted average expected life (in years)	5.8		5.8
Risk-free interest rate	3.3	%	0.9	%