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Costs Associated with Rationalization Programs - Narrative (Details) $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Mar. 18, 2019 facility position | Mar. 31, 2019 USD ($) employee | Mar. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of facilities affected | facility | 2 |  |  |
Expected number of positions eliminated | employee |  | 1,450 |  |
Rationalization charges incurred to date |  |  |  | $ 720
Rationalizations |  | $ 103 | $ 37 |
Rationalizations accrual balance |  | 162 |  | $ 81
Rationalization reversals |  | 2 | 5 |
Rationalization charges expected to be incurred in future periods |  | $ 45 |  |
Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Expected number of positions eliminated | employee |  | 1,050 |  |
Rationalizations |  | $ 100 | 31 |
Number of positions eliminated | employee |  | 50 |  |
Prior Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  | $ 3 | 6 |
Number of positions eliminated | employee |  | 100 |  |
Modernizing Tire Manufacturing Facilities in Germany |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Number of facilities affected | facility | 2 |  |  |
Expected number of positions eliminated | position | 1,100 |  |  |
Modernizing Tire Manufacturing Facilities in Germany | Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  | $ 93 |  |
Europe, Middle East, and Africa Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations accrual balance |  | 35 |  |
Europe, Middle East, and Africa Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency | Prior Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  | 3 |  |
Employee Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations accrual balance |  | 24 |  |
Employee Severance | Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  |  | 25 |
Americas Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations accrual balance |  | 6 |  |
Americas Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency | Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  | $ 7 |  |
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency | Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  |  | 6 |
Philippsburg Restructuring | Prior Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations |  |  | $ 7 |
Amiens Restructuring Plan | Amiens Labor Claims |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Loss contingency, number of plaintiffs | employee |  | 850 |  |

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