SEGMENT INFORMATION (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Feb. 29, 2020	Feb. 28, 2019	Feb. 29, 2020	Feb. 28, 2019
Segment reporting information [Line Items]
Revenues		$ 9,796	$ 9,614	$ 28,629	$ 28,369
Cloud services and license support expenses	[1]	991	937	2,994	2,807
Sales and marketing expenses	[1]	2,049	2,051	6,135	6,191
Margin		3,528	3,399	9,588	9,278
Operating Segments [Member]
Segment reporting information [Line Items]
Revenues	[2]	9,797	9,618	28,632	28,386
Expenses		3,788	3,786	11,438	11,394
Margin	[3]	6,009	5,832	17,194	16,992
Operating Segments [Member] | Cloud and License [Member]
Segment reporting information [Line Items]
Revenues	[2]	8,162	7,917	23,718	23,259
Cloud services and license support expenses		943	890	2,844	2,668
Sales and marketing expenses		1,816	1,780	5,428	5,357
Margin	[3]	5,403	5,247	15,446	15,234
Operating Segments [Member] | Hardware [Member]
Segment reporting information [Line Items]
Revenues		857	915	2,542	2,711
Hardware products and support expenses		262	331	803	973
Sales and marketing expenses		107	123	338	381
Margin	[3]	488	461	1,401	1,357
Operating Segments [Member] | Services [Member]
Segment reporting information [Line Items]
Revenues		778	786	2,372	2,416
Services expenses		660	662	2,025	2,015
Margin	[3]	$ 118	$ 124	$ 347	$ 401

[1] Exclusive of amortization of intangible assets, which is shown separately.

[2] Cloud and license revenues presented for management reporting included revenues related to cloud and license obligations that would have otherwise been recorded by the acquired businesses as independent entities but were not recognized in our condensed consolidated statements of operations for the periods presented due to business combination accounting requirements. See Note 6 for an explanation of these adjustments and the table below for a reconciliation of our total operating segment revenues to our total consolidated revenues as reported in our condensed consolidated statements of operations.

[3] The margins reported reflect only the direct controllable costs of each line of business and do not include allocations of research and development, general and administrative and certain other allocable expenses, net. Additionally, the margins reported above do not reflect amortization of intangible assets, acquisition related and other expenses, restructuring expenses, stock-based compensation, interest expense or certain other non-operating income, net.