UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	CAPITAL IN EXCESS OF STATED VALUE	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	RETAINED EARNINGS (DEFICIT)	Class A Common Stock	Class A Common Stock COMMON STOCK	Class B Common Stock	Class B Common Stock COMMON STOCK
Beginning Balance (in shares) at May. 31, 2024						298		1,205
Beginning balance at May. 31, 2024	$ 14,430	$ 13,409	$ 53	$ 965				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								4
Stock options exercised	219	219
Repurchase of Class B Common Stock (in shares)								(28)
Repurchase of Class B Common Stock	(2,254)	(251)		(2,003)
Dividends on common stock and preferred stock	(1,151)			(1,151)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								3
Issuance of shares to employees, net of shares withheld for employee taxes	55	26		29
Stock-based compensation	375	375
Net income	2,214			2,214
Other comprehensive income (loss)	149		149
Ending Balance (in shares) at Nov. 30, 2024						298		1,184
Ending balance at Nov. 30, 2024	14,037	13,778	202	54				$ 3
Beginning Balance (in shares) at Aug. 31, 2024						298		1,193
Beginning balance at Aug. 31, 2024	13,944	13,557	(27)	411				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								1
Stock options exercised	95	95
Repurchase of Class B Common Stock (in shares)								(13)
Repurchase of Class B Common Stock	(1,061)	(119)		(942)
Dividends on common stock and preferred stock	(597)			(597)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								3
Issuance of shares to employees, net of shares withheld for employee taxes	72	53		19
Stock-based compensation	192	192
Net income	1,163			1,163
Other comprehensive income (loss)	229		229
Ending Balance (in shares) at Nov. 30, 2024						298		1,184
Ending balance at Nov. 30, 2024	14,037	13,778	202	54				$ 3
Beginning Balance (in shares) at May. 31, 2025					290	290	1,186	1,186
Beginning balance at May. 31, 2025	13,213	14,195	(258)	(727)				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								3
Stock options exercised	139	139
Conversion to Class B Common Stock (in shares)						(1)		1
Repurchase of Class B Common Stock (in shares)								(2)
Repurchase of Class B Common Stock	(123)	(17)		(106)
Dividends on common stock and preferred stock	(1,205)			(1,205)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								3
Issuance of shares to employees, net of shares withheld for employee taxes	27	27
Stock-based compensation	361	361
Net income	1,519			1,519
Other comprehensive income (loss)	154		154
Ending Balance (in shares) at Nov. 30, 2025					289	289	1,191	1,191
Ending balance at Nov. 30, 2025	14,085	14,705	(104)	(519)				$ 3
Beginning Balance (in shares) at Aug. 31, 2025						289		1,188
Beginning balance at Aug. 31, 2025	13,468	14,473	(308)	(700)				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised	13	13
Dividends on common stock and preferred stock	(611)			(611)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								3
Issuance of shares to employees, net of shares withheld for employee taxes	43	43
Stock-based compensation	176	176
Net income	792			792
Other comprehensive income (loss)	204		204
Ending Balance (in shares) at Nov. 30, 2025					289	289	1,191	1,191
Ending balance at Nov. 30, 2025	$ 14,085	$ 14,705	$ (104)	$ (519)				$ 3