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Acquisitions - Financial Information (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Business Combination and Asset Acquisition [Abstract] |  |
Revenue | $ 57 | $ 20
Net income (loss) attributable to CRH plc (i) | $ 9 | $ (1)

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