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v3.25.1

Segment information - Schedule of depreciation, depletion, amortization and impairment (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Segment Reporting Information [Line Items] |  |
Depreciation, depletion and amortization | $ 477 | $ 397
Americas Materials Solutions |  |
Segment Reporting Information [Line Items] |  |
Depreciation, depletion and amortization | 220 | 190
Americas Building Solutions |  |
Segment Reporting Information [Line Items] |  |
Depreciation, depletion and amortization | 91 | 80
International Solutions |  |
Segment Reporting Information [Line Items] |  |
Depreciation, depletion and amortization | $ 166 | $ 127

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- Definition Depreciation, Depletion And Amortization, Excluding Discontinued Operation + References No definition available. + Details
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Namespace Prefix: | crh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- 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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=crh_AmericasBuildingSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=crh_InternationalSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |