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Investments in Affiliates - Schedule of Investments in Affiliates (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Investments in Affiliates |  |  |  |
Investments in affiliates | $ 162 | $ 160 | $ 173 | $ 136
Chemours-Mitsui Fluorochemicals Company, Ltd. [Member] | Japan [Member] |  |  |  |
Investments in Affiliates |  |  |  |
Investments in affiliates | $ 96 | $ 94 |  |
Ownership | 50.00% | 50.00% |  |
The Chemours Chenguang Fluoromaterials Company Limited [Member] | China [Member] |  |  |  |
Investments in Affiliates |  |  |  |
Investments in affiliates | $ 33 | $ 36 |  |
Ownership | 50.00% | 50.00% |  |
Changshu 3F Zhonghao New Chemical Materials Co., Ltd. [Member] | China [Member] |  |  |  |
Investments in Affiliates |  |  |  |
Investments in affiliates | $ 33 | $ 30 |  |
Ownership | 10.00% | 10.00% |  |

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