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Costs Associated with Rationalization Programs - Narrative (Details) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) employee | Jun. 30, 2017 USD ($) | Dec. 31, 2017 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations accrual balance | $ 116 |  | $ 116 |  | $ 213
Rationalizations | (2) | $ 27 | 35 | $ 56 |
Rationalization reversals | 7 |  | 12 |  |
Rationalization charges incurred to date |  |  |  |  | $ 730
Rationalization charges expected to be incurred in future periods | 16 |  | $ 16 |  |
Expected number of positions eliminated | employee |  |  | 600 |  |
Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations | 1 | 3 | $ 32 | 26 |
Expected number of positions eliminated | employee |  |  | 300 |  |
Number of positions eliminated | employee |  |  | 100 |  |
Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations | (3) | 24 | $ 3 | 30 |
Number of positions eliminated | employee |  |  | 300 |  |
Employee Severance |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations accrual balance | 44 |  | $ 44 |  |
Employee Severance | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations | 1 |  | 26 |  |
EMEA Restructuring, Manufacturing Employee Severance |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations accrual balance | 40 |  | 40 |  |
Philippsburg Restructuring |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations accrual balance | 8 |  | 8 |  |
Philippsburg Restructuring | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations | 2 | 18 | 9 | 20 |
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations accrual balance | $ 11 |  | 11 |  |
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 1 | $ 6 | 7 |
EMEA Restructuring, SAG Employee Severance | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 2 |  | 19 |
Wolverhampton Restructuring Plan | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | $ 2 |  | $ 5 |
Amiens Restructuring Plan | Amiens Labor Claims |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Loss contingency, number of plaintiffs | employee |  |  | 850 |  |

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