Other Income, Net - Components of Other Income (Expense) (Parenthetical) (Details) $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($)
Advanced Performance Materials [Member]
Component Of Other Income And Expenses [Line Items]
Licensing of intellectual property and sale of related assets	$ 13

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 [Line Items].

No definition available.

Name:	cc_ComponentOfOtherIncomeAndExpensesLineItems
Namespace Prefix:	cc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration