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Stockholders' Equity Reclassifications out of AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Cost of Goods Sold |  | $ 1,349 |  | $ 1,485 |  | $ 6,607 |  | $ 7,924 |
Income Tax Expense (Benefit) |  | (104) |  | (8) |  | 99 |  | (187) |
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | (527) | $ (184) | (5,642) | [1] | (228) | [1] | (5,705) | [1]
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  | 3 |  | 0 |  | 15 |  | (7) |
Derivative Instruments |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Cost of Goods Sold | [2] | 1 |  | 1 |  | 13 |  | (6) |
Income Tax Expense (Benefit) | [3] | 0 |  | (1) |  | (1) |  | 1 |
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 1 |  | 0 |  | 12 |  | (5) |
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  |  |  |  |  | 12 |  | (5) |
Pension Plan |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  |  |  |  |  | 4 |  | (2) |
Pension Plan | Actuarial (Gains) Losses |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [4] | 1 |  | 2 |  | 2 |  | 1 |
Pension Plan | Settlement Gain |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [4] | 1 |  | (1) |  | 2 |  | (2) |
Pension Plan | Accumulated Defined Benefit Plans Adjustment Attributable to Parent |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax |  | 2 |  | 1 |  | 4 |  | (1) |
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [3] | 0 |  | (1) |  | 0 |  | (1) |
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  | 2 |  | 0 |  | 4 |  | (2) |
Other Benefit Plans |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  |  |  |  |  | (1) |  | 0 |
Other Benefit Plans | Actuarial (Gains) Losses |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [4] | 0 |  | 0 |  | (1) |  | 0 |
Other Benefit Plans | Accumulated Defined Benefit Plans Adjustment Attributable to Parent |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax |  | 0 |  | 0 |  | (1) |  | 0 |
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [3] | 0 |  | 0 |  | 0 |  | 0 |
Amounts Reclassified from Accumulated Other Comprehensive Income (loss) |  | $ 0 |  | $ 0 |  | $ (1) |  | $ 0 |
[1] | Periods prior to March 31, 2019 are on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X.
[2] | Cost of goods sold.
[3] | (Benefit from) provision for income taxes from continuing operations.
[4] | These accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit (credit) cost of the company's pension and other benefit plans. See Note 20 - Pension Plans and Other Post Employment Benefits, for additional information.

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