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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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Stock-based Compensation - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 02, 2026	Mar. 31, 2026	Mar. 31, 2025	Apr. 24, 2026
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 7	$ 5
Subsequent Event [Member] \| Chemours Equity and 2026 Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized for grants (in shares)				6,375,275
Shares issued upon conversion of equity stock option awards granted				1
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 1	2
Stock options outstanding		4,262,400
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 6	3
Number of shares granted		1,044,000
Stock-based compensation award vesting period		3 years
Shares issued upon conversion of equity award		1
Number of shares non-vested		2,159,000
Performance Share Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation award vesting period	3 years
Number of shares granted	373,000
Shares issued upon conversion of equity award	1
Number of shares non-vested		635,000
Percentage of target award available for grant		100.00%
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	1
Percentage of target award available for grant	200.00%
Performance Stock Option [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 1	$ 1