BASIS OF PRESENTATION, RECENT ACCOUNTING PRONOUNCEMENTS AND OTHER Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Basic earnings per share	$ 1.04	$ 1.06
Diluted earnings per share	$ 1.01	$ 1.03
Contract with Customer, Asset and Liability [Abstract]
Revenues recognized included in opening deferred revenues balances	$ 4,000	$ 3,900
Revenue, Performance Obligation [Abstract]
Remaining performance obligation, amount	455,300
Sales of Financing Receivables [Abstract]
Sales of financing receivables	$ 756	$ 595