Organization and Basis of Presentation (Details) $ in Millions	Aug. 31, 2016 USD ($)
Organization and Basis of Presentation [Abstract]
Cash consideration for sale of Retail Entities	$ 535

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

No definition available.

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant