ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
May 31, 2016 |
May 31, 2015 |
May 31, 2014 |
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| Acquisition Related and Other Expenses [Abstract] | ||||||
| Transitional and other employee related costs | $ 45 | $ 57 | $ 27 | |||
| Stock-based compensation | 3 | 5 | 10 | |||
| Professional fees and other, net | 10 | (35) | 20 | |||
| Business combination adjustments, net | (16) | 184 | (16) | |||
| Total acquisition related and other expenses | 42 | 211 | 41 | |||
| Acquisiiton related benefit | 19 | |||||
| Benefit related to certain litigation | 53 | |||||
| Goodwill impairment loss | 0 | 186 | [1] | 0 | ||
| Advertising [Abstract] | ||||||
| Advertising expenses | 68 | 55 | 79 | |||
| Basis of Financial Statements [Abstract] | ||||||
| Goodwill impairment loss | 0 | 186 | [1] | 0 | ||
| Acquisiiton Related Benefit | 19 | |||||
| Benefit related to certain litigation | 53 | |||||
| Foreign Currency [Abstract] | ||||||
| Net foreign exchange transaction losses included in non-operating income (expense), net | 110 | 157 | 375 | |||
| Goodwill, Intangible Assets and Impairment Assessments [Abstract] | ||||||
| Goodwill impairment loss | 0 | 186 | [1] | 0 | ||
| Impairment of intangible assets | 0 | 0 | 0 | |||
| Non-Operating Income (Expense), net [Abstract] | ||||||
| Interest income | 538 | 349 | 263 | |||
| Foreign currency losses, net | (110) | (157) | (375) | |||
| Noncontrolling interests in income | (116) | (113) | (98) | |||
| Other (loss) income, net | (7) | 27 | 69 | |||
| Total non-operating income (expense), net | 305 | 106 | (141) | |||
| Foreign currency remeasurement loss resulting from the devaluation of the Venezuelan currency | 7 | 23 | 213 | |||
| Other Receivables [Narrative] [Abstract] | ||||||
| Other receivables included in prepaid expenses and other current assets | 816 | 817 | ||||
| Recent Accounting Pronouncements [Abstract] | ||||||
| Tax benefit from stock plans | 141 | 267 | 254 | |||
| Sales of Financing Receivables [Narrative] [Abstract] | ||||||
| Sales of financing receivables | $ 1,800 | 1,800 | $ 2,000 | |||
| ASU2015-17 [Member] | ||||||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||||||
| Current deferred tax assets | 663 | |||||
| Current deferred tax liabilities | $ 85 | |||||
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