CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL - USD ($) shares in Thousands, $ in Millions	9 Months Ended
	Feb. 28, 2026	May 31, 2025
Allowance for credit losses	$ 549	$ 557
Preferred stock par value per share	$ 0.01	$ 0.01
Preferred stock shares authorized	1,000	1,000
Preferred stock shares outstanding	50
Common stock par value per share	$ 0.01	$ 0.01
Common stock shares authorized	11,000,000	11,000,000
Common stock, shares issued not disclosed	true	true
Common stock shares outstanding	2,875,000	2,807,000
6.50% Series D Mandatory Convertible Preferred Stock [Member]
Preferred stock shares outstanding		0
Preferred Stock, Dividend Rate, Percentage	6.50%