Related Party Transactions	3 Months Ended
Nov. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company purchases recycled metal from its joint venture operations at prices that approximate fair market value. These purchases totaled $4 million and $3 million for the three months ended November 30, 2018 and 2017, respectively.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

Name:	us-gaap_RelatedPartyTransactionsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration