SEGMENT INFORMATION (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2020	Aug. 31, 2019
Segment reporting information [Line Items]
Revenues		$ 9,367	$ 9,218
Cloud services and license support expenses	[1]	1,011	982
Sales and marketing expenses	[1]	1,854	2,018
Margin		3,211	2,877
Operating Segments [Member]
Segment reporting information [Line Items]
Revenues	[2]	9,368	9,220
Expenses		3,513	3,734
Margin	[3]	5,855	5,486
Operating Segments [Member] | Cloud and License [Member]
Segment reporting information [Line Items]
Revenues	[2]	7,834	7,619
Cloud services and license support expenses		958	931
Sales and marketing expenses		1,633	1,757
Margin	[3]	5,243	4,931
Operating Segments [Member] | Hardware [Member]
Segment reporting information [Line Items]
Revenues		814	815
Hardware products and support expenses		239	264
Sales and marketing expenses		98	117
Margin	[3]	477	434
Operating Segments [Member] | Services [Member]
Segment reporting information [Line Items]
Revenues		720	786
Services expenses		585	665
Margin	[3]	$ 135	$ 121

[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 9 of Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended May 31, 2020 for an explanation of these adjustments and the table below for a reconciliation of our total operating segment revenues to our total 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.