Goodwill and Other Intangible Assets - Schedule of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	May 31, 2021	May 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 657	$ 838
Accumulated Amortization	(335)	(516)
Net Book Value	322	322
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	591	641
Accumulated Amortization	(299)	(327)
Net Book Value	292	314
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	65	65
Accumulated Amortization	(35)	(57)
Net Book Value	30	8
Trademarks and Other [Member]
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	1	132
Accumulated Amortization	$ (1)	$ (132)