SEGMENT INFORMATION RECONCILIATION (Details) - USD ($) $ in Millions		3 Months Ended
		Aug. 31, 2018	Aug. 31, 2017
Reconciliation of Operating Segment Revenues to Revenues [Abstract]
Total revenues		$ 9,193	$ 9,104
Reconciliation of Total Operating Segment Margin to Income Before Provision for Income Taxes [Abstract]
Total margin for operating segments		5,458	5,432
Total revenues		9,193	9,104
Research and development		(1,564)	(1,572)
General and administrative		(321)	(319)
Amortization of intangible assets		(434)	(411)
Acquisition related and other		(14)	(12)
Restructuring		(90)	(124)
Stock-based compensation for operating segments		(134)	(124)
Expense allocations and other, net		(115)	(96)
Interest expense		(529)	(469)
Non-operating income, net		291	220
Income before provision for income taxes		2,540	2,500
Cloud and License Revenues [Member]
Reconciliation of Operating Segment Revenues to Revenues [Abstract]
Total revenues	[1]	(8)	(25)
Reconciliation of Total Operating Segment Margin to Income Before Provision for Income Taxes [Abstract]
Total revenues	[1]	(8)	(25)
Total for operating segments [Member]
Reconciliation of Operating Segment Revenues to Revenues [Abstract]
Total revenues		9,201	9,129
Reconciliation of Total Operating Segment Margin to Income Before Provision for Income Taxes [Abstract]
Total revenues		$ 9,201	$ 9,129

[1] 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 this table for a reconciliation of our total operating segment revenues to our total consolidated revenues as reported in our condensed consolidated statements of operations.