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Costs Associated with Rationalization Programs - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 facility | Dec. 31, 2020 USD ($) position employee | Dec. 31, 2019 USD ($) facility | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Expected number of position to be released (in employees) | employee |  | 450 |  |  |
Restructuring reserve |  | $ 200 | $ 220 | $ 81 | $ 213
Rationalizations |  | 159 | 205 | 44 |
Rationalization reversals |  | 2 | 4 | 19 |
Rationalization charges to date |  | 990 |  |  |
Future rationalization charges expected |  | 80 |  |  |
Rationalizations |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Curtailments and settlements benefits plan credit |  | 5 | 5 | (1) |
Amiens Labor Claims |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve |  | 35 |  |  |
Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 57 | 6 | 4 |
Rationalization reversals |  | $ 2 | 4 | 18 |
Number of associates released | employee |  | 1,200 |  |  |
Prior Year Plans | Rationalizations |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Curtailments and settlements benefits plan credit |  | $ 4 |  |  |
Prior Year Plans | Amiens Labor Claims |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 30 |  |  |
Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | $ 102 | $ 199 | 40 |
Rationalization reversals |  |  |  | 1 |
Facility Closing | Plan to Permanently Close Gadsden, Alabama Manufacturing Facility as Part of Strategy to Strengthen Competitiveness of Manufacturing Footprint |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Expected number of position to be released (in employees) | position |  | 470 |  |  |
Restructuring reserve |  | $ 32 |  |  |
Modernizing Tire Manufacturing Facilities in Germany |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve |  | 89 |  |  |
Number of facilities affected | facility | 2 |  | 2 |  |
Modernizing Tire Manufacturing Facilities in Germany | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 19 |  |  |
Europe, Middle East, and Africa Restructuring Plan - Operating Efficiency |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve |  | 9 |  |  |
Reduce SAG Headcount |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve |  | 11 |  |  |
Reduce SAG Headcount | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  |  | 3 |
Reduce SAG Headcount | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  |  | 28 |
Gadsden Restructuring Plan to Offer Voluntary Buy-outs to Certain Associates |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring reserve |  | 7 |  |  |
Gadsden Restructuring Plan to Offer Voluntary Buy-outs to Certain Associates | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | 5 |  |  |
Philippsburg Restructuring | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  | $ 3 | $ 10 | 15 |
Gadsden, Alabama Manufacturing Facility | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Expected number of position to be released (in employees) | employee |  | 800 |  |  |
Number of associates released | employee |  | 600 |  |  |
Europe, Middle East, and Africa Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency | Prior Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  |  | 3 |
Europe, Middle East, and Africa Restructuring Plan - Manufacturing Employee Severance and Operating Efficiency | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  | 105 | $ 13 |
Reduction to Manufacturing Headcount, Gadsden, Alabama | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  | 76 |  |
Americas Restructuring Plan, Brazil - Manufacturing Employee Severance and Operating Efficiency | Current Year Plans |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Rationalizations |  |  | $ 18 |  |

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