GOODWILL (Details) $ in Millions		3 Months Ended
		Aug. 31, 2015 USD ($)
Goodwill [Line Items]
Balances at period start		$ 34,087
Goodwill adjustments	[1]	46
Balances at period end		34,133
Cloud software and on-premise software [Member]
Goodwill [Line Items]
Balances at period start		15,217
Goodwill adjustments	[1]	12
Balances at period end		15,229
Software License Updates and Product Support [Member]
Goodwill [Line Items]
Balances at period start		14,461
Goodwill adjustments	[1]	28
Balances at period end		14,489
Hardware Support [Member]
Goodwill [Line Items]
Balances at period start		2,370
Goodwill adjustments	[1]	4
Balances at period end		2,374
Consulting Member
Goodwill [Line Items]
Balances at period start		1,759
Balances at period end		1,759
Other [Member]
Goodwill [Line Items]
Balances at period start	[2]	280
Goodwill adjustments	[1],[2]	2
Balances at period end	[2]	$ 282

[1] Pursuant to our business combinations accounting policy, we recorded goodwill adjustments for the effect on goodwill of changes to net assets acquired during the measurement period (up to one year from the date of an acquisition). Goodwill adjustments were not significant to our previously reported operating results or financial position.

[2] Represents goodwill allocated to our other operating segments.