Party-In-Interest Transactions - Additional Information (Details) - EBP 002 [Member] - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
EBP, investment, excluding plan interest in master trust, fair value	$ 4,725,734,907	$ 4,057,592,965
CRH plc [Member]
EBP, Related Party and Party-in-Interest Transactions [Line Items]
EBP, Investment, number of shares	956,440	975,817
EBP, Investment, excluding plan interest in master trust, cost	$ 43,436,988	$ 38,811,016
EBP, investment, excluding plan interest in master trust, fair value	119,371,587	$ 90,289,788
EBP, Investment acquired, excluding plan interest in master trust, cost.	17,077,304
EBP, investment sold, excluding plan interest in master trust, selling price	12,451,332
EBP, change in net asset available for benefit, increase from dividend income on investment	1,418,832
EBP, change in net asset available for benefit, increase (decrease) from unrealized gain (loss) on investment	$ 1,213,325

Amount of increase (decrease) in net asset available for benefit from unrealized gain (loss) on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of increase in net asset available for benefit from dividend income on investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Cost of investment, excluding plan interest in master trust, acquired by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

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Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
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Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
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Amount of selling price for investment, excluding plan interest in master trust, sold by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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

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