Senior debt carrying value.

No definition available.

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

- Definition

Senior debt fair value.

+ References

No definition available.

+ Details

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

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

No definition available.

+ Details

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

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

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+ Details

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

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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+ Details

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

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=cc_SeniorUnsecuredNotesFivePointThreeSevenFiveDueMayTwoThousandTwentySevenMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=cc_SeniorUnsecuredNotesFivePointSevenFiveZeroDueNovemberTwoThousandTwentyEightMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
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Period Type:

Debt - Estimated Fair Values of Senior Debt Issues (Details) € in Millions, $ in Millions	Sep. 30, 2022 USD ($)	Sep. 30, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)
Debt Instrument [Line Items]
Less: Unamortized issue discounts	$ (4)		$ (5)
Less: Unamortized debt issuance costs	(24)		(28)
Senior Secured Tranche B-2 U.S Dollar Term Loan Due April 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	768		776
Senior Secured Tranche B-2 Euro Term Loan Due April 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	319	€ 334	381	€ 337
4.000% Senior Unsecured Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	421	€ 441	510	€ 450
5.375% Senior Unsecured Notes Due May 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	495		500
5.750% Senior Unsecured Notes Due November 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	783		800
4.625% Senior Unsecured Notes Due November 2029 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	620		650
Level 2 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	3,406		3,617
Long-term debt, Fair Value	2,931		3,694
Total senior debt, Carrying Value	3,406		3,617
Less: Unamortized issue discounts	(4)		(5)
Less: Unamortized debt issuance costs	(24)		(28)
Total senior debt, net	3,378		3,584
Total senior debt, Carrying Value	3,406		3,617
Total senior debt, Fair Value	2,931		3,694
Level 2 [Member] \| Senior Secured Tranche B-2 U.S Dollar Term Loan Due April 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	768		776
Long-term debt, Fair Value	721		769
Level 2 [Member] \| Senior Secured Tranche B-2 Euro Term Loan Due April 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	319		381
Long-term debt, Fair Value	312		378
Level 2 [Member] \| 4.000% Senior Unsecured Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	421		510
Long-term debt, Fair Value	366		518
Level 2 [Member] \| 5.375% Senior Unsecured Notes Due May 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	495		500
Long-term debt, Fair Value	428		538
Level 2 [Member] \| 5.750% Senior Unsecured Notes Due November 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	783		800
Long-term debt, Fair Value	643		846
Level 2 [Member] \| 4.625% Senior Unsecured Notes Due November 2029 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	620		650
Long-term debt, Fair Value	$ 461		$ 645