v3.26.1
Background, Description of the Business, and Basis of Presentation - Summary of Revised Interim Consolidated Statements of Comprehensive (Loss) Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Net (loss) income $ (29) $ (5)
Unrealized gain (loss) on net investment hedge pre-tax 27 (26)
Unrealized gain (loss) on net investment hedge, tax (9) 7
Unrealized (loss) gain on net investment hedge (After-Tax) 18 (19)
Hedging activities, net pre- tax 36 (33)
Hedging activities, net, tax (11) 8
Hedging activities, net (After-Tax) 25 (25)
Other Comprehensive income (loss)   33
Comprehensive income (29) 28
Comprehensive income attributable to Chemours $ (29) 28
As reported [Member]    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Net (loss) income   (4)
Unrealized gain (loss) on net investment hedge pre-tax   (31)
Unrealized gain (loss) on net investment hedge, tax   8
Unrealized (loss) gain on net investment hedge (After-Tax)   (23)
Hedging activities, net pre- tax   (38)
Hedging activities, net, tax   9
Hedging activities, net (After-Tax)   (29)
Other Comprehensive income (loss)   29
Comprehensive income   25
Comprehensive income attributable to Chemours   25
Adjustments [Member]    
Error Corrections and Prior Period Adjustments Restatement [Line Items]    
Net (loss) income   (1)
Unrealized gain (loss) on net investment hedge pre-tax   5
Unrealized gain (loss) on net investment hedge, tax   (1)
Unrealized (loss) gain on net investment hedge (After-Tax)   4
Hedging activities, net pre- tax   5
Hedging activities, net, tax   (1)
Hedging activities, net (After-Tax)   4
Other Comprehensive income (loss)   4
Comprehensive income   3
Comprehensive income attributable to Chemours   $ 3