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Movement in Working Capital and Provisions for Liabilities - Summary of Movement in Working Capital and Provisions for Liabilities (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of Movement in Working Capital and Provisions for Liabilities [Line Items]      
Beginning balance $ 583 $ 904 $ 1,316
Effect of adopting IFRS 16     17
Translation adjustment (2) (15) 7
Arising on acquisition (note 30) 204 49 49
Disposals (25) (29) (758)
Deferred and contingent acquisition consideration:      
- arising on acquisitions during year (note 30) (1) (7) (20)
- paid during year 33 54 54
Deferred proceeds arising on disposals during year     302
Deferred divestment consideration:      
- arising on disposals during year 1 14  
- received during year (120) (123)  
Shares to be acquired by CRH plc (Treasury Shares) (note 29) (281)    
Interest accruals and discount unwinding (14) (41) (38)
Additions to leased mineral reserves (10) (14) (96)
Reclassification (2) (13)  
(Decrease)/increase in working capital and provisions for liabilities 228 (196) 71
Ending balance 594 583 904
Inventories [member]      
Disclosure of Movement in Working Capital and Provisions for Liabilities [Line Items]      
Beginning balance 3,117 3,080 3,505
Translation adjustment (84) 71 2
Arising on acquisition (note 30) 157 23 65
Disposals (22) (14) (581)
Deferred and contingent acquisition consideration:      
- arising on acquisitions during year (note 30) 0 0  
- paid during year 0 0  
Deferred divestment consideration:      
- arising on disposals during year 0 0  
- received during year 0 0  
Shares to be acquired by CRH plc (Treasury Shares) (note 29) 0    
Interest accruals and discount unwinding 0 0  
Additions to leased mineral reserves 0 0  
Reclassification 4 20  
(Decrease)/increase in working capital and provisions for liabilities 439 (63) 89
Ending balance 3,611 3,117 3,080
Trade and other receivables [member]      
Disclosure of Movement in Working Capital and Provisions for Liabilities [Line Items]      
Beginning balance 4,411 4,587 4,872
Effect of adopting IFRS 16     3
Translation adjustment (102) 107 9
Arising on acquisition (note 30) 191 47 73
Disposals (20) (37) (747)
Deferred and contingent acquisition consideration:      
- arising on acquisitions during year (note 30) 0 0  
- paid during year 0 0  
Deferred proceeds arising on disposals during year     302
Deferred divestment consideration:      
- arising on disposals during year 1 14  
- received during year (120) (123)  
Shares to be acquired by CRH plc (Treasury Shares) (note 29) 0    
Interest accruals and discount unwinding 11 4 (12)
Additions to leased mineral reserves 0 0  
Reclassification 0 (11)  
(Decrease)/increase in working capital and provisions for liabilities 436 (177) 87
Ending balance 4,808 4,411 4,587
Trade and other payables [member]      
Disclosure of Movement in Working Capital and Provisions for Liabilities [Line Items]      
Beginning balance (5,503) (5,461) (5,817)
Effect of adopting IFRS 16     13
Translation adjustment 147 (150) (8)
Arising on acquisition (note 30) (143) (21) (82)
Disposals 11 17 570
Deferred and contingent acquisition consideration:      
- arising on acquisitions during year (note 30) (1) (7) (20)
- paid during year 33 54 54
Deferred divestment consideration:      
- arising on disposals during year 0 0  
- received during year 0 0  
Shares to be acquired by CRH plc (Treasury Shares) (note 29) (281)    
Interest accruals and discount unwinding (7) (24) (1)
Additions to leased mineral reserves (10) (14) (96)
Reclassification (6) (22)  
(Decrease)/increase in working capital and provisions for liabilities (649) 125 (74)
Ending balance (6,409) (5,503) (5,461)
Provisions for liabilities [member]      
Disclosure of Movement in Working Capital and Provisions for Liabilities [Line Items]      
Beginning balance (1,442) (1,302) (1,244)
Effect of adopting IFRS 16     1
Translation adjustment 37 (43) 4
Arising on acquisition (note 30) (1) 0 (7)
Disposals 6 5 0
Deferred and contingent acquisition consideration:      
- arising on acquisitions during year (note 30) 0 0  
- paid during year 0 0  
Deferred divestment consideration:      
- arising on disposals during year 0 0  
- received during year 0 0  
Shares to be acquired by CRH plc (Treasury Shares) (note 29) 0    
Interest accruals and discount unwinding (18) (21) (25)
Additions to leased mineral reserves 0 0  
Reclassification 0 0  
(Decrease)/increase in working capital and provisions for liabilities 2 (81) (31)
Ending balance $ (1,416) $ (1,442) $ (1,302)