SEGMENT INFORMATION (Details) - USD ($) $ in Millions		12 Months Ended
		May 31, 2019	May 31, 2018	May 31, 2017
Segment reporting information [Line Items]
Revenues		$ 39,506	$ 39,383	$ 37,792
Cloud services and license support expenses	[1]	3,782	3,606	3,011
Sales and marketing expenses	[1]	8,509	8,433	8,085
Margin		13,535	13,264	12,913
Operating Segments [Member]
Segment reporting information [Line Items]
Revenues	[2]	39,526	39,430	37,963
Expenses		15,545	15,573	14,755
Margin	[3]	23,981	23,857	23,208
Operating Segments [Member] | Cloud and License [Member]
Segment reporting information [Line Items]
Revenues	[2]	32,582	32,041	30,452
Cloud services and license support expenses		3,597	3,441	2,881
Sales and marketing expenses		7,398	7,213	6,770
Margin	[3]	21,587	21,387	20,801
Operating Segments [Member] | Hardware [Member]
Segment reporting information [Line Items]
Revenues		3,704	3,994	4,152
Hardware products and support expenses		1,327	1,547	1,618
Sales and marketing expenses		520	643	825
Margin	[3]	1,857	1,804	1,709
Operating Segments [Member] | Services [Member]
Segment reporting information [Line Items]
Revenues		3,240	3,395	3,359
Services expenses		2,703	2,729	2,661
Margin	[3]	$ 537	$ 666	$ 698

[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 9 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 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 product 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 non-operating income, net. Refer to the table below for a reconciliation of our total margin for operating segments to our income before provision for income taxes as reported per our consolidated statements of operations.