Restructuring and Asset Related Charges 2016 Global Cost Savings and Restructuring Plan (Details) - Predecessor [Member] - USD ($) $ in Millions	2 Months Ended	8 Months Ended
Aug. 31, 2017	Aug. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	$ 11	$ 323
2016 Restructuring Program [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Asset Related Charges - Net	$ 10	$ 10

Amount of restructuring charges, remediation cost, and asset impairment loss.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Name:	us-gaap_RestructuringSettlementAndImpairmentProvisions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration