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Net Sales - Summary of Disaggregation of Net Sales by Geographical Region and Segment and Product Group (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales | $ 1,353 | $ 1,390 | $ 1,408 | $ 1,376 | $ 1,464 | $ 1,628 | $ 1,816 | $ 1,730 | $ 5,526 | $ 6,638 | $ 6,183
Fluorochemicals [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,318 | 1,497 | 1,378
Fluoropolymers [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,330 | 1,365 | 1,276
Mining Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 268 | 289 | 261
Performance Chemicals and Intermediates [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 265 | 313 | 306
Titanium Dioxide and Other Minerals [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 2,345 | 3,174 | 2,958
North America [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 2,144 | 2,378 | 2,255
Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,543 | 1,720 | 1,593
Europe, the Middle East, and Africa [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,163 | 1,685 | 1,506
Latin America [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 676 | 855 | $ 829
Topic 606 [Member] | Transferred at a Point in Time [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 5,526 | 6,638 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Fluoroproducts [Member] | Fluorochemicals [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,318 | 1,497 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Fluoroproducts [Member] | Fluoropolymers [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,330 | 1,365 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Chemical Solutions [Member] | Mining Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 268 | 289 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Chemical Solutions [Member] | Performance Chemicals and Intermediates [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 265 | 313 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Titanium Technologies [Member] | Titanium Dioxide and Other Minerals [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 2,345 | 3,174 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 2,144 | 2,378 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Fluoroproducts [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,104 | 1,143 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Chemical Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 313 | 341 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Titanium Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 727 | 894 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,543 | 1,720 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Fluoroproducts [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 673 | 675 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Chemical Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 61 | 81 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Titanium Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 809 | 964 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 1,163 | 1,685 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Fluoroproducts [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 666 | 825 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Chemical Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 23 | 18 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Titanium Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 474 | 842 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 676 | 855 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Fluoroproducts [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 205 | 219 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Chemical Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | 136 | 162 |
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Titanium Technologies [Member] |  |  |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Net Sales |  |  |  |  |  |  |  |  | $ 335 | $ 474 |

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