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Acquisitions and Divestitures - Narrative (Details) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2019 USD ($) | Apr. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2016 a | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Apr. 03, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Recognized gain on sale of land |  |  | $ 42,000,000 |  | $ 10,000,000 | $ 45,000,000 | $ 22,000,000 |
Net cash proceeds of transaction |  |  | 39,000,000 |  | 9,000,000 | 46,000,000 | 39,000,000 |
Environmental remediation activities amount |  |  | $ 3,000,000 |  | 200,000,000 | 101,000,000 | $ 48,000,000 |
Linden, New Jersey [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Number of acre of land for sale | a |  |  |  | 210 |  |  |  |
Southern Ionics Minerals, LLC [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Estimated total consideration | $ 25,000,000 |  |  |  |  |  |  |
Upfront payment | 10,000,000 |  |  |  |  |  |  |
Installment payment | 10,000,000 |  |  |  |  |  |  |
Contingent considerations with estimated fair value | 5,000,000 |  |  |  |  |  |  |
Goodwill | $ 0 |  |  |  |  |  |  |
Southern Ionics Minerals, LLC [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisition-related expenses |  |  |  |  | 1,000,000 |  |  |
ICOR International, Inc. [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 4,000,000 |  | $ 6,000,000
Total consideration in all cash acquisition |  | $ 37,000,000 |  |  |  |  |  |
ICOR International, Inc. [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisition-related expenses |  |  |  |  |  | $ 1,000,000 |  |
Methylamines and Methylamides Business [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Maximum agreed loss on sale of business under asset purchase agreement |  |  |  |  | 2,000,000 |  |  |
Cash proceeds received |  |  |  |  | 2,000,000 |  |  |
Accelerated depreciation |  |  |  |  | 34,000,000 |  |  |
Additional pre-tax loss on sale |  |  |  |  | $ 2,000,000 |  |  |

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