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

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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

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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.

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

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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

+ Details

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

- Definition

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

+ References

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- 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.

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Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

- Details

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Period Type:

- Details

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- Details

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Debt - Estimated Fair Values of Senior Debt Issues (Details) € in Millions, $ in Millions	Mar. 31, 2025 USD ($)	Mar. 31, 2025 EUR (€)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)
Debt Instrument [Line Items]
Less: Unamortized issue discounts	$ (18)		$ (19)
Less: Unamortized debt issuance costs	(22)		(24)
Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	447	€ 415	432	€ 415
Senior Secured Tranche B-3 U.S Dollar Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	1,054		1,056
5.375% Senior Unsecured Notes Due May 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	495		495
5.750% Senior Unsecured Notes Due November 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	783		783
4.625% Senior Unsecured Notes Due November 2029 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	620		620
8.000% Senior Unsecured Notes Due January 2033 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	600		600
Level 2 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	3,999		3,986
Long-term debt, Fair Value	3,799		3,834
Total senior debt, Carrying Value	3,999		3,986
Less: Unamortized issue discounts	(18)		(19)
Less: Unamortized debt issuance costs	(22)		(24)
Total principal maturities on debt	3,959		3,943
Total senior debt, Carrying Value	3,999		3,986
Total senior debt, Fair Value	3,799		3,834
Level 2 [Member] \| Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	447		432
Long-term debt, Fair Value	448		439
Level 2 [Member] \| Senior Secured Tranche B-3 U.S Dollar Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	1,054		1,056
Long-term debt, Fair Value	1,053		1,065
Level 2 [Member] \| 5.375% Senior Unsecured Notes Due May 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	495		495
Long-term debt, Fair Value	482		477
Level 2 [Member] \| 5.750% Senior Unsecured Notes Due November 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	783		783
Long-term debt, Fair Value	723		728
Level 2 [Member] \| 4.625% Senior Unsecured Notes Due November 2029 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	620		620
Long-term debt, Fair Value	530		538
Level 2 [Member] \| 8.000% Senior Unsecured Notes Due January 2033 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	600		600
Long-term debt, Fair Value	$ 563		$ 587