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Redeemable noncontrolling interest - Narrative (Details) | Dec. 31, 2024 subsidiary
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Noncontrolling Interest [Abstract] |
Number of subsidiaries with redeemable noncontrolling interests | 2

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- Definition Number of Subsidiaries with Redeemable Noncontrolling Interests + References No definition available. + Details
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Namespace Prefix: | crh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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