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Stockholders' Equity Stockholders' Equity (Schedule of Components of Other Comprehensive Income / (Loss)) (Details) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | $ (9,911) |  | $ (9,396) |  | $ (8,556) |  | $ (5,290)
Other comprehensive (loss) income before reclassifications | (850) |  | (1,605) |  | (3,575) |  |
Amounts reclassified from accumulated other comprehensive loss | 335 |  | 297 |  | 309 |  |
Other comprehensive (loss) income | (515) |  | (1,308) |  | (3,265) |  |
Spin-off of Chemours |  |  | 468 |  |  |  |
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | (2,843) | [1] | (2,333) | [1] | (919) | [1] | (43)
Other comprehensive (loss) income before reclassifications | (510) |  | (1,605) |  | (876) |  |
Amounts reclassified from accumulated other comprehensive loss | 0 |  | 0 |  | 0 |  |
Other comprehensive (loss) income | (510) |  | (1,605) |  | (876) |  |
Spin-off of Chemours |  |  | 191 |  |  |  |
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | 7 |  | (24) |  | (6) |  | (48)
Other comprehensive (loss) income before reclassifications | 20 |  | (25) |  | 33 |  |
Amounts reclassified from accumulated other comprehensive loss | 11 |  | 7 |  | 9 |  |
Other comprehensive (loss) income | 31 |  | (18) |  | 42 |  |
Spin-off of Chemours |  |  | 0 |  |  |  |
Pension Plan [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | (6,720) |  | (7,043) |  | (7,895) |  | (5,695)
Other comprehensive (loss) income before reclassifications | (271) |  | 39 |  | (2,601) |  |
Amounts reclassified from accumulated other comprehensive loss | 594 |  | 535 |  | 401 |  |
Other comprehensive (loss) income | 323 |  | 574 |  | (2,200) |  |
Spin-off of Chemours |  |  | 278 |  |  |  |
Other Post Employment Benefit Plans [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | (357) |  | 22 |  | 262 |  | 494
Other comprehensive (loss) income before reclassifications | (81) |  | 3 |  | (131) |  |
Amounts reclassified from accumulated other comprehensive loss | (298) |  | (243) |  | (101) |  |
Other comprehensive (loss) income | (379) |  | (240) |  | (232) |  |
Spin-off of Chemours |  |  | 0 |  |  |  |
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Accumulated other comprehensive (loss) income | 2 |  | (18) |  | 2 |  | $ 2
Other comprehensive (loss) income before reclassifications | (8) |  | (17) |  | 0 |  |
Amounts reclassified from accumulated other comprehensive loss | 28 |  | (2) |  | 0 |  |
Other comprehensive (loss) income | 20 |  | (19) |  | 0 |  |
Spin-off of Chemours |  |  | (1) |  |  |  |
Other Comprehensive (Loss) Income, Net of Tax, Attributable to Parent [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Other comprehensive (loss) income |  |  |  |  | (3,266) |  |
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |
Amounts reclassified from accumulated other comprehensive loss | $ 335 |  | $ 297 |  | $ 309 |  |
[1] | The currency translation loss for the year ended December 31, 2016 is primarily driven by the strengthening of the U.S. dollar (USD) against the European Euro (EUR) partially offset by the weakening of the USD against the Brazilian real (BRL). The currency translation loss for the years ended December 31, 2015 and 2014 is driven by the strengthening USD against primarily the EUR and BRL. For the year ended December 31, 2015, the increase over prior year is also due to changes in certain foreign entity's functional currency as described in Note 1.

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