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v3.23.2

Significant Accounting Policies - Additional Information (Detail) | 1 Months Ended
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Aug. 31, 2022
Accounting Policies [Abstract] |
Excise tax on stock repurchases | 1.00%

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- Definition Excise tax on stock repurchases. + References No definition available. + Details
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Namespace Prefix: | cbt_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration