STOCK-BASED COMPENSATION - Total Stock-Based Compensation Expense (Details) - Class B Common Stock - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Feb. 28, 2026	Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 194	$ 169	$ 555	$ 544
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	68	69	215	222
ESPPs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	19	17	45	53
Restricted stock and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 107	$ 83	$ 295	$ 269

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details