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, 2021						305		1,273
Beginning balance at May. 31, 2021	$ 12,767	$ 9,965	$ (380)	$ 3,179		$ 0		$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								14
Stock options exercised	837	837
Repurchase of Class B Common Stock (in shares)								(19)
Repurchase of Class B Common Stock	(2,932)	(126)		(2,806)
Dividends on common stock	(1,406)			(1,406)
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	(10)	43		(53)
Stock-based compensation	467	467
Net income	4,607			4,607
Other comprehensive income (loss)	479		479
Ending Balance (in shares) at Feb. 28, 2022						305		1,271
Ending balance at Feb. 28, 2022	14,809	11,186	99	3,521		$ 0		$ 3
Beginning Balance (in shares) at Nov. 30, 2021						305		1,278
Beginning balance at Nov. 30, 2021	14,924	10,990	145	3,786		$ 0		$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								1
Stock options exercised	112	112
Repurchase of Class B Common Stock (in shares)								(8)
Repurchase of Class B Common Stock	(1,222)	(57)		(1,165)
Dividends on common stock	(488)			(488)
Issuance of shares to employees, net of shares withheld for employee taxes	(28)	(20)		(8)
Stock-based compensation	161	161
Net income	1,396			1,396
Other comprehensive income (loss)	(46)		(46)
Ending Balance (in shares) at Feb. 28, 2022						305		1,271
Ending balance at Feb. 28, 2022	14,809	11,186	99	3,521		$ 0		$ 3
Beginning Balance (in shares) at May. 31, 2022					305	305	1,266	1,266
Beginning balance at May. 31, 2022	15,281	11,484	318	3,476		$ 0		$ 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	305	1,235	1,235
Ending balance at Feb. 28, 2023	14,531	12,074	302	2,152		$ 0		$ 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		$ 0		$ 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)		0
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	305	1,235	1,235
Ending balance at Feb. 28, 2023	$ 14,531	$ 12,074	$ 302	$ 2,152		$ 0		$ 3