Aggregate amount of qualified spend.

No definition available.

Name:	cc_AggregateAmountOfQualifiedSpend
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Consideration available after funding.

+ References

No definition available.

+ Details

Name:	cc_ConsiderationAvailableAfterFunding
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Expenditures incurred subject to cost-sharing as qualified spend.

+ References

No definition available.

+ Details

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

- Definition

Increase decrease in selling, general and administrative expense.

+ References

No definition available.

+ Details

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

- Definition

Loss contingency estimated recovery from third party amount.

+ References

No definition available.

+ Details

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

- Definition

Loss contingency settlement agreement amount.

+ References

No definition available.

+ Details

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

- Definition

Minimum amount of qualified spend required to allow withdrawals from escrow account.

+ References

No definition available.

+ Details

Name:	cc_MinimumAmountOfQualifiedSpendRequiredToAllowWithdrawalsFromEscrowAccount
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Minimum settlement amount required to allow withdrawals from escrow account.

+ References

No definition available.

+ Details

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

- Definition

Outstanding amount in escrow account.

+ References

No definition available.

+ Details

Name:	cc_OutstandingAmountInEscrowAccount
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of escrow deposits contribution to restore required escrow balance.

+ References

No definition available.

+ Details

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

- Definition

Qualified recovery amount received.

+ References

No definition available.

+ Details

Name:	cc_QualifiedRecoveryAmountReceived
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Withdrawals from escrow account.

+ References

No definition available.

+ Details

Name:	cc_WithdrawalsFromEscrowAccount
Namespace Prefix:	cc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 440
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478522/954-440-50-1

+ Details

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

- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 720
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483359/720-20-50-1

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482395/460-10-55-27

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-3

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

+ Details

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

- Details

Name:	us-gaap_BalanceSheetLocationAxis=cc_RestrictedCashAndRestrictedCashEquivalentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationStatusAxis=cc_WaterDistrictSettlementFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=cc_MemorandumOfUnderstandingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cc_PFASLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=cc_MinimumBalanceOnDecemberThirtyFirstTwoThousandTwentyEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=cc_BeforeJanuaryTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=cc_StartingInJanuary2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=cc_NoLaterThanEachOfSeptemberThirtyTwoThousandTwentyOneAndSeptemberThirtyTwoThousandTwentyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=cc_NoLaterThanSeptemberThirtyOfEachSubsequentYearThroughAndIncludingTwoThousandTwentyEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=cc_DuPontAndCortevaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingent Liabilities - Litigation - Memorandum of Understanding (MOU) with DuPont, Corteva and EID (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Jul. 31, 2024	Jan. 31, 2021	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Sep. 06, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Aggregate amount of qualified spend		$ 4,000
Available amount after consideration of funding		2,000
Escrow deposit			$ 50	$ 0
Loss contingency settlement agreement amount	$ 45
Expect to receive amount of settlement	$ 23
Gain within selling, general and administrative expense			23
Outstanding amount in escrow account					$ 50
Restricted Cash And Restricted Cash Equivalents \| Water District Settlement Fund [Member]
Loss Contingencies [Line Items]
Escrow deposit						$ 592
Chemours [Member]
Loss Contingencies [Line Items]
Qualified recovery amount received			47	88
Expenditures subject to cost-sharing as qualified spend			109	148
Memorandum of Understanding [Member]
Loss Contingencies [Line Items]
Aggregate amount of qualified spend		4,000
Escrow deposit			$ 50
Memorandum of Understanding [Member] \| PFAS Liabilities [Member] \| Restricted Cash And Restricted Cash Equivalents
Loss Contingencies [Line Items]
Escrow deposit							$ 100
Memorandum of Understanding [Member] \| Minimum Balance on December 31, 2028 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Escrow deposit		700
Memorandum of Understanding [Member] \| Before January 2026 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Minimum settlement amount required to allow withdrawals from escrow account		125
Memorandum of Understanding [Member] \| Starting in January 2026 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Minimum amount of qualified spend required to allow withdrawals from escrow account		$ 200
Memorandum of Understanding [Member] \| Chemours [Member] \| Restricted Cash And Restricted Cash Equivalents
Loss Contingencies [Line Items]
Withdrawals from escrow account				$ 209
Memorandum of Understanding [Member] \| Chemours [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Percentage of escrow deposits contribution to restore escrow balance to 700		50.00%
Memorandum of Understanding [Member] \| Chemours [Member] \| No Later Than Each of September 30, 2021 and September 30, 2022 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Escrow deposit		$ 100
Memorandum of Understanding [Member] \| Chemours [Member] \| No Later Than September 30 of Each Subsequent Year Through and Including 2028 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Escrow deposit		$ 50
Memorandum of Understanding [Member] \| DuPont and Corteva [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Percentage of escrow deposits contribution to restore escrow balance to 700		50.00%
Memorandum of Understanding [Member] \| DuPont and Corteva [Member] \| No Later Than Each of September 30, 2021 and September 30, 2022 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Escrow deposit		$ 100
Memorandum of Understanding [Member] \| DuPont and Corteva [Member] \| No Later Than September 30 of Each Subsequent Year Through and Including 2028 [Member] \| PFAS Liabilities [Member]
Loss Contingencies [Line Items]
Escrow deposit		$ 50