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Employee Separation / Asset Related Charges, Net Employee Separation / Asset Related Charges, Net (2017 Restructuring Program schedule) (Details) - 2017 Restructuring Program [Member] - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2017
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | $ 152 |
Restructuring reserve, payments |  | (1) |
Restructuring reserve, asset write-offs |  | (119) |
Restructuring Reserve |  | 32 |
Severance and Related Benefit Costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 33 |
Restructuring reserve, payments |  | (1) |
Restructuring reserve, asset write-offs |  | 0 |
Restructuring Reserve |  | 32 |
Asset Related Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost | [1] | 119 |
Restructuring reserve, payments | [1] | 0 |
Restructuring reserve, asset write-offs | [1] | (119) |
Restructuring Reserve | [1] | 0 |
Electronics & Communications [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 5 |
Industrial Biosciences [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 6 |
Nutrition & Health [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 2 |
Performance Materials [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 11 |
Protection Solutions [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | 124 |
Corporate Expenses [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  | $ 4 |
Scenario, Forecast [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  |  | $ 326
Scenario, Forecast [Member] | Severance and Related Benefit Costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  |  | 33
Scenario, Forecast [Member] | Asset Related Charges [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Incurred Cost |  |  | $ 293
[1] | Includes accelerated depreciation related to site closure. Charge for accelerated depreciation represents the difference between the depreciation expense to be recognized over the revised useful life of the site, based upon the anticipated date the site will be closed and depreciation expense as determined utilizing the useful life prior to the restructuring action.

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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