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	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, 2023						305		1,227
Beginning Balance at May. 31, 2023	$ 14,004	$ 12,412	$ 231	$ 1,358				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								4
Stock options exercised	212	212
Conversion to Class B Common Stock (in shares)						(7)		7
Repurchase of Class B Common Stock (in shares)								(22)
Repurchase of Class B Common Stock	(2,341)	(184)		(2,157)
Dividends on common stock and preferred stock	(1,084)			(1,084)
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	35	29		6
Stock-based compensation	402	402
Net income	3,028			3,028
Other comprehensive income (loss)	(110)		(110)
Ending Balance (in shares) at Nov. 30, 2023						298		1,219
Ending Balance at Nov. 30, 2023	14,146	12,871	121	1,151				$ 3
Beginning Balance (in shares) at Aug. 31, 2023						298		1,226
Beginning Balance at Aug. 31, 2023	13,971	12,590	136	1,242				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								2
Stock options exercised	106	106
Repurchase of Class B Common Stock (in shares)								(12)
Repurchase of Class B Common Stock	(1,209)	(99)		(1,110)
Dividends on common stock and preferred stock	(565)			(565)
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	74	68		6
Stock-based compensation	206	206
Net income	1,578			1,578
Other comprehensive income (loss)	(15)		(15)
Ending Balance (in shares) at Nov. 30, 2023						298		1,219
Ending Balance at Nov. 30, 2023	14,146	12,871	121	1,151				$ 3
Beginning Balance (in shares) at May. 31, 2024					298	298	1,205	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	298	1,184	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	298	1,184	1,184
Ending Balance at Nov. 30, 2024	$ 14,037	$ 13,778	$ 202	$ 54				$ 3