Goodwill and Other Intangible Assets - Schedule Of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	May 31, 2019	May 31, 2018
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 888	$ 885
Accumulated Amortization	(472)	(405)
Net Book Value	416	480
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	685	676
Accumulated Amortization	(293)	(250)
Net Book Value	392	426
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	66	68
Accumulated Amortization	(51)	(39)
Net Book Value	15	29
Trademarks and other [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	137	141
Accumulated Amortization	(128)	(116)
Net Book Value	$ 9	$ 25