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Stock-based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
 12 Months Ended 96 Months Ended
Jan. 26, 2017
Period
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
shares
Apr. 28, 2021
shares
Dec. 31, 2017
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 15 $ 18 $ 27      
Stock Option [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 8 8 8      
Expiration period   10 years          
Stock-based compensation award vesting period   3 years          
Total intrinsic value of options exercised   $ 1 17 45      
Unrecognized stock-based compensation expense related to stock options   $ 5     $ 5    
Unrecognized stock-based compensation expense period for recognition   2 years 7 days          
Stock Option [Member] | Chief Executive Officer              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 3          
Restricted Stock Units (RSUs) [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 9 $ 9 $ 11      
Stock-based compensation award vesting period   3 years          
Unrecognized stock-based compensation expense period for recognition   1 year 1 month 13 days          
Shares issued upon conversion of equity award | shares   1     1    
Unrecognized compensation cost related to equity awards other than options   $ 12     $ 12    
Weighted-average fair value at grant date (in dollars per share) | $ / shares   $ 25.02 $ 33.22 $ 28.08      
Performance Share Units [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 3   $ 8      
Stock-based compensation award vesting period   3 years          
Shares issued upon conversion of equity award | shares   1     1    
Percentage of target award available for grant   100.00% 100.00% 100.00%      
Weighted-average fair value at grant date (in dollars per share) | $ / shares   $ 32.77 $ 40.64 $ 28.77      
Number of additional shares to be awarded | shares   188,000          
Performance Share Units [Member] | Chief Executive Officer              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 1          
Performance Share Units [Member] | Minimum [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Percentage of target award available for grant   0.00%          
Performance Share Units [Member] | Maximum [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense     $ 1        
Percentage of target award available for grant   200.00%          
Performance Stock Option [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Stock-based compensation expense   $ 1          
Expiration period   10 years          
Stock-based compensation award vesting period   3 years          
Unrecognized stock-based compensation expense period for recognition   2 years 2 months 12 days          
Unrecognized compensation cost related to equity awards other than options   $ 1     $ 1    
Strike price percentage   10.00%          
Employee Stock Purchase Plan [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Number of common stock shares reserved for issuance | shares 7,000,000            
Consecutive offering periods 12 months            
Number of purchase periods in offer period | Period 2            
Percentage of common stock discount rate equal to the fair value 95.00%            
Stock purchased under employee stock purchase plan, Shares | shares         354,000    
Stock purchased under employee stock purchase plan, Value         $ 9    
Chemours Equity and Incentive Plan [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Shares authorized for grants (in shares) | shares             19,000,000
Shares reserved for grants (in shares) | shares             0
Amendment and Restatement of Equity Plan [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Shares authorized for grants (in shares) | shares           22,050,000  
Shares reserved for grants (in shares) | shares   9,500,000     9,500,000    
Increase in the shares reserved for grant (in shares) | shares           3,050,000  
Chemours Company Equity and Incentive Plan (the "Prior Plan") [Member]              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Shares issued upon conversion of equity stock option awards granted | shares           1  
Shares issued upon conversion of equity stock other than option awards granted | shares           1.5