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, 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)								8
Stock options exercised	421	421
Repurchase of Class B Common Stock (in shares)								(51)
Repurchase of Class B Common Stock	(5,509)	(378)		(5,131)
Dividends on common stock and preferred stock	(2,059)			(2,059)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								4
Issuance of shares to employees, net of shares withheld for employee taxes	132	130		2
Stock-based compensation	755	755
Net income	5,070			5,070
Other comprehensive income (loss)	(87)		(87)
Ending balance (in shares) at May. 31, 2023						305		1,227
Ending 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)								7
Stock options exercised	432	432
Conversion to Class B Common Stock (in shares)						(7)		7
Repurchase of Class B Common Stock (in shares)								(41)
Repurchase of Class B Common Stock	(4,254)	(347)		(3,907)
Dividends on common stock and preferred stock	(2,203)			(2,203)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								5
Issuance of shares to employees, net of shares withheld for employee taxes	125	108		17
Stock-based compensation	804	804
Net income	5,700			5,700
Other comprehensive income (loss)	(178)		(178)
Ending balance (in shares) at May. 31, 2024					298	298	1,205	1,205
Ending balance at May. 31, 2024	14,430	13,409	53	965				$ 3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock options exercised (in shares)								6
Stock options exercised	315	315
Conversion to Class B Common Stock (in shares)						(8)		8
Repurchase of Class B Common Stock (in shares)								(38)
Repurchase of Class B Common Stock	(2,955)	(342)		(2,613)
Dividends on common stock and preferred stock	(2,337)			(2,337)
Issuance of shares to employees, net of shares withheld for employee taxes (in shares)								5
Issuance of shares to employees, net of shares withheld for employee taxes	143	104		39
Stock-based compensation	709	709
Net income	3,219			3,219
Other comprehensive income (loss)	(311)		(311)
Ending balance (in shares) at May. 31, 2025					290	290	1,186	1,186
Ending balance at May. 31, 2025	$ 13,213	$ 14,195	$ (258)	$ (727)				$ 3