NOTES PAYABLE AND OTHER BORROWINGS (Details) € in Millions, $ in Millions		12 Months Ended
		May 31, 2021 USD ($)	May 31, 2021 EUR (€)		Mar. 24, 2021 USD ($)	May 31, 2020 USD ($)	Jul. 10, 2013 EUR (€)
Debt Instrument [Line Items]
Notes payable and other borrowings		$ 84,529				$ 71,807
Unamortized discount/issuance costs		(315)				(285)
Hedge accounting fair value adjustments	[1],[2]	31				75
Total notes payable and other borrowings		84,245				71,597
Notes payable, current		8,250				2,371
Notes payable and other borrowings, non-current		75,995				69,226
Senior notes and other borrowings, par value		$ 84,484			$ 15,000		€ 2,000
3.875% senior notes due July 2020 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 12, 2010
Notes payable and other borrowings						$ 1,000
Effective interest rate						3.93%
Senior notes and other borrowings, par value		$ 1,000
Stated interest rate percentage		3.875%	3.875%
Maturity date		Jul. 15, 2020
2.25% senior notes due January 2021 [Member]
Debt Instrument [Line Items]
Date of issuance	[3],[4]	Jul. 10, 2013
Notes payable and other borrowings	[3],[4]					$ 1,371
Effective interest rate	[3],[4]					2.33%
Senior notes and other borrowings, par value | €			€ 1,250	[3],[4]			1,250
Stated interest rate percentage		2.25%	2.25%
Maturity date	[3],[4]	Jan. 10, 2021
2.80% senior notes due July 2021 [Member]
Debt Instrument [Line Items]
Date of issuance	[2]	Jul. 08, 2014
Notes payable and other borrowings	[2]	$ 1,500				$ 1,500
Effective interest rate	[2]	2.82%	2.82%			2.82%
Senior notes and other borrowings, par value	[2]	$ 1,500
Stated interest rate percentage		2.80%	2.80%
Maturity date	[2]	Jul. 08, 2021
1.90% senior notes due September 2021 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 07, 2016
Notes payable and other borrowings		$ 4,250				$ 4,250
Effective interest rate		1.94%	1.94%			1.94%
Senior notes and other borrowings, par value		$ 4,250
Stated interest rate percentage		1.90%	1.90%
Maturity date		Sep. 15, 2021
2.50% senior notes due May 2022 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 2,500				$ 2,500
Effective interest rate		2.56%	2.56%			2.56%
Senior notes and other borrowings, par value		$ 2,500
Stated interest rate percentage		2.50%	2.50%
Maturity date		May 15, 2022
2.50% senior notes due October 2022 [Member]
Debt Instrument [Line Items]
Date of issuance		Oct. 25, 2012
Notes payable and other borrowings		$ 2,500				$ 2,500
Effective interest rate		2.51%	2.51%			2.51%
Senior notes and other borrowings, par value		$ 2,500
Stated interest rate percentage		2.50%	2.50%
Maturity date		Oct. 15, 2022
2.625% senior notes due February 2023 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 09, 2017
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		2.64%	2.64%			2.64%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		2.625%	2.625%
Maturity date		Feb. 15, 2023
3.625% senior notes due July 2023 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 16, 2013
Notes payable and other borrowings		$ 1,000				$ 1,000
Effective interest rate		3.73%	3.73%			3.73%
Senior notes and other borrowings, par value		$ 1,000
Stated interest rate percentage		3.625%	3.625%
Maturity date		Jul. 23, 2023
2.40% senior notes due September 2023 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 07, 2016
Notes payable and other borrowings		$ 2,500				$ 2,500
Effective interest rate		2.40%	2.40%			2.40%
Senior notes and other borrowings, par value		$ 2,500
Stated interest rate percentage		2.40%	2.40%
Maturity date		Sep. 15, 2023
3.40% senior notes due July 2024 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 08, 2014
Notes payable and other borrowings		$ 2,000				$ 2,000
Effective interest rate		3.43%	3.43%			3.43%
Senior notes and other borrowings, par value		$ 2,000
Stated interest rate percentage		3.40%	3.40%
Maturity date		Jul. 08, 2024
2.95% senior notes due November 2024 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 09, 2017
Notes payable and other borrowings		$ 2,000				$ 2,000
Effective interest rate		2.98%	2.98%			2.98%
Senior notes and other borrowings, par value		$ 2,000
Stated interest rate percentage		2.95%	2.95%
Maturity date		Nov. 15, 2024
2.50% senior notes due April 2025 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 3,500				$ 3,500
Effective interest rate		2.51%	2.51%			2.51%
Senior notes and other borrowings, par value		$ 3,500
Stated interest rate percentage		2.50%	2.50%
Maturity date		Apr. 01, 2025
2.95% senior notes due May 2025 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 2,500				$ 2,500
Effective interest rate		3.00%	3.00%			3.00%
Senior notes and other borrowings, par value		$ 2,500
Stated interest rate percentage		2.95%	2.95%
Maturity date		May 15, 2025
3.125% senior notes due July 2025 [Member]
Debt Instrument [Line Items]
Date of issuance	[1],[3]	Jul. 10, 2013
Notes payable and other borrowings	[1],[3]	$ 916				$ 823
Effective interest rate	[1],[3]	3.17%	3.17%			3.17%
Senior notes and other borrowings, par value | €			€ 750	[1],[3]			€ 750
Stated interest rate percentage		3.125%	3.125%
Maturity date	[1],[3]	Jul. 10, 2025
1.65% senior notes due March 2026 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 2,750
Effective interest rate	[5]	1.66%	1.66%
Senior notes and other borrowings, par value	[5]	$ 2,750
Stated interest rate percentage		1.65%	1.65%
Maturity date	[5]	Mar. 25, 2026
2.65% senior notes due July 2026 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 07, 2016
Notes payable and other borrowings		$ 3,000				$ 3,000
Effective interest rate		2.69%	2.69%			2.69%
Senior notes and other borrowings, par value		$ 3,000
Stated interest rate percentage		2.65%	2.65%
Maturity date		Jul. 15, 2026
2.80% senior notes due April 2027 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 2,250				$ 2,250
Effective interest rate		2.83%	2.83%			2.83%
Senior notes and other borrowings, par value		$ 2,250
Stated interest rate percentage		2.80%	2.80%
Maturity date		Apr. 01, 2027
3.25% senior notes due November 2027 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 09, 2017
Notes payable and other borrowings		$ 2,750				$ 2,750
Effective interest rate		3.26%	3.26%			3.26%
Senior notes and other borrowings, par value		$ 2,750
Stated interest rate percentage		3.25%	3.25%
Maturity date		Nov. 15, 2027
2.30% senior notes due March 2028 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 2,000
Effective interest rate	[5]	2.34%	2.34%
Senior notes and other borrowings, par value	[5]	$ 2,000
Stated interest rate percentage		2.30%	2.30%
Maturity date	[5]	Mar. 25, 2028
2.95% senior notes due April 2030 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 3,250				$ 3,250
Effective interest rate		2.96%	2.96%			2.96%
Senior notes and other borrowings, par value		$ 3,250
Stated interest rate percentage		2.95%	2.95%
Maturity date		Apr. 01, 2030
3.25% senior notes due May 2030 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 500				$ 500
Effective interest rate		3.30%	3.30%			3.30%
Senior notes and other borrowings, par value		$ 500
Stated interest rate percentage		3.25%	3.25%
Maturity date		May 15, 2030
2.875% senior notes due March 2031 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 3,250
Effective interest rate	[5]	2.89%	2.89%
Senior notes and other borrowings, par value	[5]	$ 3,250
Stated interest rate percentage		2.875%	2.875%
Maturity date	[5]	Mar. 31, 2031
4.30% senior notes due July 2034 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 08, 2014
Notes payable and other borrowings		$ 1,750				$ 1,750
Effective interest rate		4.30%	4.30%			4.30%
Senior notes and other borrowings, par value		$ 1,750
Stated interest rate percentage		4.30%	4.30%
Maturity date		Jul. 08, 2034
3.90% senior notes due May 2035 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		3.95%	3.95%			3.95%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		3.90%	3.90%
Maturity date		May 15, 2035
3.85% senior notes due July 2036 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 07, 2016
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		3.85%	3.85%			3.85%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		3.85%	3.85%
Maturity date		Jul. 15, 2036
3.80% senior notes due November 2037 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 09, 2017
Notes payable and other borrowings		$ 1,750				$ 1,750
Effective interest rate		3.83%	3.83%			3.83%
Senior notes and other borrowings, par value		$ 1,750
Stated interest rate percentage		3.80%	3.80%
Maturity date		Nov. 15, 2037
6.50% senior notes due April 2038 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 09, 2008
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		6.52%	6.52%			6.52%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		6.50%	6.50%
Maturity date		Apr. 15, 2038
6.125% senior notes due July 2039 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 08, 2009
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		6.19%	6.19%			6.19%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		6.125%	6.125%
Maturity date		Jul. 08, 2039
3.60% senior notes due April 2040 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 3,000				$ 3,000
Effective interest rate		3.62%	3.62%			3.62%
Senior notes and other borrowings, par value		$ 3,000
Stated interest rate percentage		3.60%	3.60%
Maturity date		Apr. 01, 2040
4.50% senior notes due July 2044 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 12, 2010
Notes payable and other borrowings		$ 2,250				$ 2,250
Effective interest rate		5.45%	5.45%			5.45%
Senior notes and other borrowings, par value		$ 2,250
Stated interest rate percentage		5.375%	5.375%
Maturity date		Jul. 15, 2040
3.65% senior notes due March 2041 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 2,250
Effective interest rate	[5]	3.70%	3.70%
Senior notes and other borrowings, par value	[5]	$ 2,250
Stated interest rate percentage		3.65%	3.65%
Maturity date	[5]	Mar. 25, 2041
4.50% senior notes due July 2044 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 08, 2014
Notes payable and other borrowings		$ 1,000				$ 1,000
Effective interest rate		4.50%	4.50%			4.50%
Senior notes and other borrowings, par value		$ 1,000
Stated interest rate percentage		4.50%	4.50%
Maturity date		Jul. 08, 2044
4.125% senior notes due May 2045 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 2,000				$ 2,000
Effective interest rate		4.15%	4.15%			4.15%
Senior notes and other borrowings, par value		$ 2,000
Stated interest rate percentage		4.125%	4.125%
Maturity date		May 15, 2045
4.00% senior notes due July 2046 [Member]
Debt Instrument [Line Items]
Date of issuance		Jul. 07, 2016
Notes payable and other borrowings		$ 3,000				$ 3,000
Effective interest rate		4.00%	4.00%			4.00%
Senior notes and other borrowings, par value		$ 3,000
Stated interest rate percentage		4.00%	4.00%
Maturity date		Jul. 15, 2046
4.00% senior notes due November 2047 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 09, 2017
Notes payable and other borrowings		$ 2,250				$ 2,250
Effective interest rate		4.03%	4.03%			4.03%
Senior notes and other borrowings, par value		$ 2,250
Stated interest rate percentage		4.00%	4.00%
Maturity date		Nov. 15, 2047
3.60% senior notes due April 2050 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 4,500				$ 4,500
Effective interest rate		3.62%	3.62%			3.62%
Senior notes and other borrowings, par value		$ 4,500
Stated interest rate percentage		3.60%	3.60%
Maturity date		Apr. 01, 2050
3.95% senior notes due March 2051 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 3,250
Effective interest rate	[5]	3.96%	3.96%
Senior notes and other borrowings, par value	[5]	$ 3,250
Stated interest rate percentage		3.95%	3.95%
Maturity date	[5]	Mar. 25, 2051
4.375% senior notes due May 2055 [Member]
Debt Instrument [Line Items]
Date of issuance		May 05, 2015
Notes payable and other borrowings		$ 1,250				$ 1,250
Effective interest rate		4.40%	4.40%			4.40%
Senior notes and other borrowings, par value		$ 1,250
Stated interest rate percentage		4.375%	4.375%
Maturity date		May 15, 2055
3.85% senior notes due April 2060 [Member]
Debt Instrument [Line Items]
Date of issuance		Apr. 01, 2020
Notes payable and other borrowings		$ 3,500				$ 3,500
Effective interest rate		3.87%	3.87%			3.87%
Senior notes and other borrowings, par value		$ 3,500
Stated interest rate percentage		3.85%	3.85%
Maturity date		Apr. 01, 2060
4.10% senior notes due March 2061 [Member]
Debt Instrument [Line Items]
Date of issuance	[5]	Mar. 31, 2021
Notes payable and other borrowings	[5]	$ 1,500
Effective interest rate	[5]	4.11%	4.11%
Senior notes and other borrowings, par value	[5]	$ 1,500
Stated interest rate percentage		4.10%	4.10%
Maturity date	[5]	Mar. 25, 2061
Other borrowings due August 2025 [Member]
Debt Instrument [Line Items]
Date of issuance		Nov. 07, 2016
Notes payable and other borrowings		$ 113				$ 113
Effective interest rate		3.53%	3.53%			3.53%

[1] In fiscal 2018 we entered into certain cross-currency interest rate swap agreements that have the economic effect of converting our fixed-rate, Euro-denominated debt, including annual interest payments and the payment of principal at maturity, to a variable-rate, U.S. Dollar-denominated debt of $871 million based on LIBOR. The effective interest rates as of May 31, 2021 and 2020 after consideration of the cross-currency interest rate swap agreements were 3.15% and 4.46%, respectively, for the July 2025 Notes. Refer to Notes 1 and 10 for a description of our accounting for fair value hedges.

[2] We entered into certain interest rate swap agreements that have the economic effects of modifying the fixed-interest obligations associated with the 2.80% senior notes due July 2021 (July 2021 Notes) so that the interest payable on these notes effectively became variable based on LIBOR. The effective interest rates after consideration of these fixed to variable interest rate swap agreements were 0.87% and 1.99%, respectively, for the July 2021 Notes as of May 31, 2021 and 2020, respectively. Refer to Notes 1 and 10 for a description of our accounting for fair value hedges associated with our July 2021 Notes.

[3] In July 2013, we issued €2.0 billion of fixed-rate senior notes comprised of €1.25 billion of 2.25% senior notes that were due and were settled in January 2021 (January 2021 Notes) and €750 million of 3.125% senior notes due July 2025 (July 2025 Notes, and together with the January 2021 Notes, the Euro Notes). Principal and unamortized discount/issuance costs for the Euro Notes in the table above were calculated using foreign currency exchange rates, as applicable, as of May 31, 2021 and May 31, 2020, respectively. The July 2025 Notes are registered and trade on the New York Stock Exchange.

[4] In connection with the issuance of the January 2021 Notes, we entered into certain cross-currency swap agreements, all of which were cash settled upon their maturity during fiscal 2021 (see Note 10 for additional information).

[5] In March 2021, we issued $15.0 billion of senior notes for general corporate purposes, which may include stock repurchases, payment of cash dividends on our common stock and repayment of indebtedness and future acquisitions. The interest is payable semi-annually. We may redeem some or all of the senior notes of each series prior to their maturity, subject to certain restrictions, and the payment of an applicable make-whole premium in certain instances.