Debt - Accounts Receivable Securitization Facility - Narrative (Details) - Securitization Facility - Special Purpose Entity - USD ($) $ in Millions		3 Months Ended
Mar. 09, 2020	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Line of Credit Facility [Line Items]
Percentage of fair value on additional purchases of receivables	100.00%
Cash proceeds for receivables		$ 338	$ 271
Accounts receivable from securitization, amount derecognized		338	271
Receivable from securitization facility		180		$ 76
Servicing and other fees on securitization		$ 1	$ 1

Percentage of fair value on additional purchases of receivables.

No definition available.

Name:	cc_PercentageOfFairValueOnAdditionalPurchasesOfReceivables
Namespace Prefix:	cc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Servicing and other fees on securitization.

+ References

No definition available.

+ Details

Name:	cc_ServicingAndOtherFeesOnSecuritization
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount owed to the reporting entity by counterparties in securitized loan transactions.

+ References

No definition available.

+ Details

Name:	us-gaap_AccountsReceivableFromSecuritization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The increase (decrease) during the reporting period in the amount owed to the reporting entity by counterparties in securitized loan transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromAccountsReceivableSecuritization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=cc_SecuritizationFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cc_SpecialPurposeEntityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: