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

No definition available.

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Regional Reporting Disclosure [Line Items]

+ References

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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

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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

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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

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-Name Accounting Standards Codification

-Topic 225

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-Section S99

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Operating Segments and Related Information - Additional Information (Detail) $ in Millions	12 Months Ended
	May. 31, 2015 USD ($) customer	May. 31, 2014 USD ($) customer	May. 31, 2013 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	$ 14,180	$ 12,711	$ 11,385
Long-lived assets attributable to operations (Domestic)	1,877	1,652
Japan
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	205	258
BELGIUM
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	234	175
CHINA
Regional Reporting Disclosure [Line Items]
Long-lived assets attributable to operations (Domestic)	$ 267	$ 234