Segment Information - Summary of Operating Segments Disclosures - Other Items (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of operating segments [abstract]
Additions to leased mineral reserves	$ 10	$ 10	$ 14

Leased minerals reserves outside the scope of IFRS 16 included in additions to property, plant and equipment.

No definition available.

Name:	crh_LeasedMineralsReservesOutsideTheScopeOfIfrs16IncludedInAdditionsToPropertyPlantAndEquipment
Namespace Prefix:	crh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration