Number of Customers Accounted for Percent of Company's Net Revenues

No definition available.

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- Definition

Regional Reporting Disclosure [Line Items]

+ References

No definition available.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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-Section 50
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-Publisher FASB
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Operating Segments and Related Information - Additional Information (Detail) $ in Millions	12 Months Ended
	May 31, 2017 USD ($) customer	May 31, 2016 USD ($) customer	May 31, 2015 USD ($) customer
Sales Revenue, Net
Regional Reporting Disclosure [Line Items]
Number of customers exceeding risk threshold \| customer	0	0	0
Concentration risk percentage	10.00%
UNITED STATES
Regional Reporting Disclosure [Line Items]
Revenue	$ 15,778	$ 15,304	$ 14,180
Long-lived assets attributable to operations (Domestic)	2,629	2,241
Japan
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	223	223
BELGIUM
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	390	348
CHINA
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	$ 232	$ 240