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, 2022						305		1,266
Beginning balance at May. 31, 2022	$ 15,281	$ 11,484	$ 318	$ 3,476				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								6
Stock options exercised	302	302
Repurchase of Class B Common Stock (in shares)								(39)
Repurchase of Class B Common Stock	(4,117)	(288)		(3,829)
Dividends on common stock	(1,535)			(1,535)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								2
Issuance of shares to employees, net of shares withheld for employee taxes	21	20		1
Stock-based compensation	556	556
Net income	4,039			4,039
Other comprehensive income (loss)	(16)		(16)
Ending Balance (in shares) at Feb. 28, 2023						305		1,235
Ending balance at Feb. 28, 2023	14,531	12,074	302	2,152				$ 3
Beginning Balance (in shares) at Nov. 30, 2022						305		1,245
Beginning balance at Nov. 30, 2022	15,272	11,851	559	2,859				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								3
Stock options exercised	153	153
Repurchase of Class B Common Stock (in shares)								(13)
Repurchase of Class B Common Stock	(1,519)	(99)		(1,420)
Dividends on common stock	(527)			(527)
Issuance of shares to employees, net of shares withheld for employee taxes	(23)	(23)
Stock-based compensation	192	192
Net income	1,240			1,240
Other comprehensive income (loss)	(257)		(257)
Ending Balance (in shares) at Feb. 28, 2023						305		1,235
Ending balance at Feb. 28, 2023	14,531	12,074	302	2,152				$ 3
Beginning Balance (in shares) at May. 31, 2023					305	305	1,227	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)								6
Stock options exercised	347	347
Conversion to Class B Common Stock (in shares)						(7)		7
Repurchase of Class B Common Stock (in shares)								(30)
Repurchase of Class B Common Stock	(3,207)	(251)		(2,956)
Dividends on common stock	(1,645)			(1,645)
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	15	2		13
Stock-based compensation	618	618
Net income	4,200			4,200
Other comprehensive income (loss)	(106)		(106)
Ending Balance (in shares) at Feb. 29, 2024					298	298	1,213	1,213
Ending balance at Feb. 29, 2024	14,226	13,128	125	970				$ 3
Beginning Balance (in shares) at Nov. 30, 2023						298		1,219
Beginning balance at Nov. 30, 2023	14,146	12,871	121	1,151				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								2
Stock options exercised	135	135
Repurchase of Class B Common Stock (in shares)								(8)
Repurchase of Class B Common Stock	(866)	(67)		(799)
Dividends on common stock	(561)			(561)
Issuance of shares to employees, net of shares withheld for employee taxes	(20)	(27)		7
Stock-based compensation	216	216
Net income	1,172			1,172
Other comprehensive income (loss)	4		4
Ending Balance (in shares) at Feb. 29, 2024					298	298	1,213	1,213
Ending balance at Feb. 29, 2024	$ 14,226	$ 13,128	$ 125	$ 970				$ 3