SEGMENT INFORMATION (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2019	Aug. 31, 2018
Segment reporting information [Line Items]
Revenues		$ 9,218	$ 9,193
Cloud services and license support expenses	[1]	982	913
Sales and marketing expenses	[1]	2,018	2,039
Margin		2,877	2,778
Operating Segments [Member]
Segment reporting information [Line Items]
Revenues	[2]	9,220	9,201
Expenses		3,734	3,743
Margin	[3]	5,486	5,458
Operating Segments [Member] | Cloud and License [Member]
Segment reporting information [Line Items]
Revenues	[2]	7,619	7,484
Cloud services and license support expenses		931	867
Sales and marketing expenses		1,757	1,744
Margin	[3]	4,931	4,873
Operating Segments [Member] | Hardware [Member]
Segment reporting information [Line Items]
Revenues		815	904
Hardware products and support expenses		264	317
Sales and marketing expenses		117	139
Margin	[3]	434	448
Operating Segments [Member] | Services [Member]
Segment reporting information [Line Items]
Revenues		786	813
Services expenses		665	676
Margin	[3]	$ 121	$ 137

[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 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.