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ACQUISITIONS (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2016 | Sep. 30, 2014 | Feb. 28, 2014 | May 31, 2016 | May 31, 2015 | May 31, 2014 | Sep. 08, 2014 | Jul. 03, 2014 | Feb. 06, 2014
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Fair value of restricted stock-based awards and stock options assumed |  |  |  | $ 1 | $ 12 | $ 148 |  |  |
Goodwill |  |  |  | 34,590 | 34,087 | 29,652 |  |  |
Acquisitions Proforma [Abstract] |  |  |  |  |  |  |  |  |
Total revenues |  |  |  | 37,084 | 38,771 |  |  |  |
Net income |  |  |  | $ 8,869 | $ 9,844 |  |  |  |
Basic earnings per share (in dollars per share) |  |  |  | $ 2.10 | $ 2.24 |  |  |  |
Diluted earnings per share (in dollars per share) |  |  |  | $ 2.06 | $ 2.19 |  |  |  |
Fiscal 2017 Acquisition [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total purchase price | $ 1,300 |  |  |  |  |  |  |  |
Fiscal 2016 Acquisitions [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Materiality of acquisitions individually or in the aggregate |  |  |  | These acquisitions were not significant individually or in the aggregate. |  |  |  |  |
MICROS Systems, Inc. [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Merger agreement date |  |  |  | Jun. 22, 2014 |  |  |  |  |
Total purchase price |  | $ 5,247 |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  | $ 683 |  |
Trade receivables, net |  |  |  |  |  |  | 181 |  |
Inventories |  |  |  |  |  |  | 28 |  |
Goodwill |  |  |  |  |  |  | 3,242 |  |
Intangible assets |  |  |  |  |  |  | 2,030 |  |
Other assets |  |  |  |  |  |  | 155 |  |
Accounts payable and other liabilities |  |  |  |  |  |  | (359) |  |
Deferred tax liabilities, net |  |  |  |  |  |  | (536) |  |
Deferred revenues |  |  |  |  |  |  | $ (177) |  |
Business acquisition per share price |  |  |  |  |  |  | $ 68.00 | $ 68.00 |
Business combination reason |  |  |  | We acquired MICROS to, among other things, expand our cloud and on-premise software, hardware and related services offerings for hotels, food and beverage industries, facilities, and retailers. |  |  |  |  |
Other Fiscal 2015 Acquisitions [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total purchase price |  |  |  |  | $ 1,700 |  |  |  |
Cash portion of purchase price |  |  |  |  | 1,700 |  |  |  |
Fair value of restricted stock-based awards and stock options assumed |  |  |  |  | 7 |  |  |  |
Goodwill |  |  |  |  | 1,400 |  |  |  |
Intangible assets |  |  |  |  | 388 |  |  |  |
Net tangible liabilities assumed |  |  |  |  | $ 6 |  |  |  |
Responsys, Inc. [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquisition completion date |  |  |  | Feb. 06, 2014 |  |  |  |  |
Total purchase price |  |  | $ 1,600 |  |  |  |  |  |
Cash portion of purchase price |  |  | 1,400 |  |  |  |  |  |
Fair value of restricted stock-based awards and stock options assumed |  |  | $ 147 |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  | $ 1,000
Intangible assets |  |  |  |  |  |  |  |  | 580
Net tangible liabilities assumed |  |  |  |  |  |  |  |  | 32
In-process research and development recorded |  |  |  |  |  |  |  |  | $ 14
Other Fiscal 2014 Acquisitions [Member] |  |  |  |  |  |  |  |  |
Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Total purchase price |  |  |  |  |  | 2,300 |  |  |
Goodwill |  |  |  |  |  | 1,300 |  |  |
Intangible assets |  |  |  |  |  | 1,100 |  |  |
Net tangible liabilities assumed |  |  |  |  |  | 230 |  |  |
In-process research and development recorded |  |  |  |  |  | $ 99 |  |  |

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