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Risk Management and Derivatives - Amounts Affecting Consolidated Statements of Income (Detail) - USD ($) $ in Millions | 3 Months Ended
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Aug. 31, 2017 | Aug. 31, 2016
Derivatives not designated as hedging instruments | Foreign exchange forwards and options | Other expense (income), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Income on Derivatives | $ (194) | $ (35)
Derivatives not designated as hedging instruments | Embedded derivatives | Other expense (income), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Income on Derivatives | (1) | 3
Derivatives designated as cash flow hedges |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | (350) | (106)
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | 47 | 180
Derivatives designated as cash flow hedges | Foreign exchange forwards and options | Revenues |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | 55 | 53
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | 2 | 33
Derivatives designated as cash flow hedges | Foreign exchange forwards and options | Cost of sales |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | (277) | (52)
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | 45 | 104
Derivatives designated as cash flow hedges | Foreign exchange forwards and options | Total selling and administrative expense |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | 1 | 0
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | 0 | 0
Derivatives designated as cash flow hedges | Foreign exchange forwards and options | Other expense (income), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | (129) | (16)
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | 2 | 43
Derivatives designated as cash flow hedges | Interest rate swaps | Interest expense (income), net |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives | 0 | (91)
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income | $ (2) | $ 0

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959 + Details
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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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