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Restructuring and Asset Related Charges - Net (La Porte) (Narrative) (Details) - Predecessor - USD ($) $ in Millions | 2 Months Ended | 3 Months Ended | 8 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 31, 2017 | Sep. 30, 2016 | Aug. 31, 2017 | Sep. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and Asset Related Charges - Net | $ 11 | $ 172 | $ 323 | $ 162
La Porte [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and Asset Related Charges - Net |  |  |  | 75
La Porte [Member] | Asset Related Charges [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and Asset Related Charges - Net |  |  |  | 41
La Porte [Member] | Other Non-Personnel Charges [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and Asset Related Charges - Net |  |  |  | 18
La Porte [Member] | Severance and Related Benefit Costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring and Asset Related Charges - Net |  |  |  | $ 16

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- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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