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Commitments and Contingent Liabilities Environmental (Details) $ in Millions | Dec. 31, 2017 USD ($)
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Successor [Member] |
Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies | $ 433
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 920
Predecessor [Member] |
Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies | 457
Superfund Sites [Member] | Successor [Member] |
Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies | 67
Superfund Sites [Member] | Predecessor [Member] |
Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies | 50
Chemours [Member] | Successor [Member] |
Loss Contingencies [Line Items] |
Accrual for Environmental Loss Contingencies | 242
Accrual for Environmental Loss Contingencies, Potential Exposure in Excess of Accrual | 430
Indemnification Agreement [Member] | Chemours [Member] | Successor [Member] |
Loss Contingencies [Line Items] |
Indemnification Assets | 242
Indemnification Agreement [Member] | Chemours [Member] | Superfund Sites [Member] | Successor [Member] |
Loss Contingencies [Line Items] |
Indemnification Assets | $ 47

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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
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