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Business Acquisitions, Dispositions, Goodwill and Intangible Assets Dispositions (Tables) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
After tax gain on the sale of Taylor Company |  | $ 591 |
Gain on sale of Taylor Company | $ 0 | 799 | $ 0
Assets held for sale |  | 175 |
Liabilities held for sale | 0 | 40 |
Inventory, net | 10,950 | 10,083 |
Property, Plant and Equipment, Net | $ 12,755 | 12,297 |
Property, Plant and Equipment [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Assets held for sale |  | 37 |
Inventories [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Assets held for sale |  | $ 51 |

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