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Other Income (Expense), Net - Components of Other Income (Expense) (Parenthetical) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Component Of Other Income And Expenses [Line Items] |  |  |  |
Leasing, contract services and miscellaneous income |  | $ 51 | $ 79 | $ 30
Settlement loss | $ 380 | 381 | (18) | (22)
Netherlands Pension Plan [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Settlement loss |  | 380 |  |
European Union [Member] | Fluorinated Greenhouse Gas [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Leasing, contract services and miscellaneous income |  | 41 | 67 | 15
Repauno, New Jersey Sites [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Gain on sale of asset |  | $ 9 |  |
East Chicago, Indiana [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Gain on sale of asset |  |  | 3 |
Repauno New Jersey [Member] | Land [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Gain on sale of asset |  |  |  | 13
Linden, New Jersey Sites [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Gain on sale of asset |  |  | $ 42 |
Edge Moor, Delaware Site [Member] |  |  |  |
Component Of Other Income And Expenses [Line Items] |  |  |  |
Gain on sale of asset |  |  |  | $ 12

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