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Net Sales - Schedule of Disaggregated Revenue (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | $ 12,321 | $ 14,745 | $ 15,475
Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 6,556 | 7,922 | 8,168
Europe, Middle East & Africa |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 4,020 | 4,708 | 5,090
Asia Pacific |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 1,745 | 2,115 | 2,217
Tire unit sales |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 10,339 | 12,524 | 13,060
Tire unit sales | Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 5,138 | 6,300 | 6,381
Tire unit sales | Europe, Middle East & Africa |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 3,611 | 4,300 | 4,670
Tire unit sales | Asia Pacific |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 1,590 | 1,924 | 2,009
Other tire and related sales |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 956 | 1,139 | 1,162
Other tire and related sales | Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 549 | 659 | 656
Other tire and related sales | Europe, Middle East & Africa |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 309 | 363 | 379
Other tire and related sales | Asia Pacific |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 98 | 117 | 127
Retail services and service related sales |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 688 | 644 | 675
Retail services and service related sales | Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 538 | 535 | 564
Retail services and service related sales | Europe, Middle East & Africa |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 95 | 39 | 34
Retail services and service related sales | Asia Pacific |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 55 | 70 | 77
Chemical sales |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 317 | 403 | 554
Chemical sales | Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 317 | 403 | 554
Other |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 21 | 35 | 24
Other | Americas |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 14 | 25 | 13
Other | Europe, Middle East & Africa |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | 5 | 6 | 7
Other | Asia Pacific |  |  |
Revenue Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Net Sales | $ 2 | $ 4 | $ 4

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