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Business Segments - Rationalizations, Asset Sales, Other Expense and Asset Write-offs and Accelerated Depreciation Attributable to the SBUs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Goodwill and Other Asset Impairments | $ 330 |  |
Rationalizations | 159 | $ 205 | $ 44
Asset write-Offs and accelerated depreciation | 105 | 15 | 4
Americas |  |  |
Segment Reporting Information [Line Items] |  |  |
Asset write-Offs and accelerated depreciation | 103 | 13 |
Europe, Middle East and Africa |  |  |
Segment Reporting Information [Line Items] |  |  |
Asset write-Offs and accelerated depreciation | 2 | 2 | 4
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Rationalizations | 157 | 205 | 42
Net (gains) losses on asset sales | 2 | (16) | (273)
Operating Segments | Americas |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill and Other Asset Impairments | 148 |  |
Rationalizations | 94 | 90 | 3
Net (gains) losses on asset sales |  |  | (275)
Operating Segments | Europe, Middle East and Africa |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill and Other Asset Impairments | 182 |  |
Rationalizations | 59 | 115 | 36
Net (gains) losses on asset sales | 2 | $ (16) | 2
Operating Segments | Asia Pacific |  |  |
Segment Reporting Information [Line Items] |  |  |
Rationalizations | 4 |  | 3
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Rationalizations | $ 2 |  | $ 2

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