Goodwill and Other Intangible Assets - Schedule Of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	May 31, 2018	May 31, 2017
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 885	$ 846
Accumulated Amortization	(405)	(317)
Net Book Value	480	529
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	676	656
Accumulated Amortization	(250)	(203)
Net Book Value	426	453
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	68	54
Accumulated Amortization	(39)	(26)
Net Book Value	29	28
Trademarks and other [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	141	136
Accumulated Amortization	(116)	(88)
Net Book Value	$ 25	$ 48

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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