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Stockholder's Equity (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | $ (9,396) |  | $ (8,556)
Other comprehensive loss before reclassifications |  |  |  | (1,712) |  | (1,006)
Amounts reclassified from accumulated other comprehensive loss |  |  |  | 441 |  | 183
Spin-off of Chemours |  |  |  |  |  | 468
Accumulated other comprehensive loss, ending balance | $ (10,667) |  | $ (8,911) | (10,667) |  | (8,911)
Cumulative Translation Adjustment [Member] |  |  |  |  |  |
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | (2,333) |  | (919)
Other comprehensive income (loss), before reclassifications, CTA |  |  |  | 187 |  | (1,405)
Amounts reclassified from accumulated other comprehensive loss |  |  |  | 0 |  | 0
Spin-off of Chemours |  |  |  |  |  | 191
Accumulated other comprehensive loss, ending balance | (2,146) |  | (2,133) | (2,146) |  | (2,133)
Net Revaluation and Clearance of Cash Flow Hedges to Earnings |  |  |  |  |  |
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | (24) |  | (6)
Other comprehensive income (loss), before reclassifications, cash flow hedges |  |  |  | 21 |  | (24)
Amounts reclassified from accumulated other comprehensive loss, cash flow hedges |  |  |  | 11 |  | 7
Spin-off of Chemours |  |  |  |  |  | 0
Accumulated other comprehensive loss, ending balance | 8 |  | (23) | 8 |  | (23)
Pension Plans [Member] |  |  |  |  |  |
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | (7,043) |  | (7,895)
Other comprehensive (loss) income, before reclassifications, pension and other benefit plans |  |  |  | (1,740) |  | 469
Amounts reclassified from accumulated other comprehensive loss, pension and other benefit plans |  |  |  | 469 |  | 407
Spin-off of Chemours |  |  |  |  |  | 278
Accumulated other comprehensive loss, ending balance | (8,314) |  | (6,741) | (8,314) |  | (6,741)
Other Long-Term Employee Benefit Plans [Member] |  |  |  |  |  |
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | 22 |  | 262
Other comprehensive (loss) income, before reclassifications, pension and other benefit plans |  |  |  | (172) |  | (46)
Amounts reclassified from accumulated other comprehensive loss, pension and other benefit plans |  |  |  | (58) |  | (231)
Spin-off of Chemours |  |  |  |  |  | 0
Accumulated other comprehensive loss, ending balance | (208) |  | (15) | (208) |  | (15)
Unrealized (Loss) Gain on Securities |  |  |  |  |  |
Components of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, beginning balance |  |  |  | (18) |  | 2
Other comprehensive loss, before reclassifications, securities | (1) | [1] | 0 | (8) | [1] | 0
Amounts reclassified from accumulated other comprehensive loss, securities |  |  |  | 19 |  | 0
Spin-off of Chemours |  |  |  |  |  | (1)
Accumulated other comprehensive loss, ending balance | $ (7) |  | $ 1 | $ (7) |  | $ 1
[1] | The unrealized gain (loss) on securities during the three and nine months ended September 30, 2016 is due to the re-measurement of USD denominated marketable securities held by certain foreign entities at September 30, 2016 with a corresponding offset to cumulative translation adjustment.

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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- Definition Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32211-110900 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a-c) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32022-110900 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32157-110900 + Details
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