| Component: (Network and Table) | |
|---|---|
| Network |
1001 - Document - Document and Entity Information
(http://www.crh.com/taxonomy/role/DocumentandEntityInformation) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000849395 (http://www.sec.gov/CIK) |
| Document - Document and Entity Information [Abstract] | Period [Axis] |
|---|---|
|
2017-01-01 - 2017-12-31 | |
|
Document - Document and Entity Information [Abstract] |
|
|
Document Type |
|
|
Amendment Flag |
|
|
Document Period End Date |
|
|
Document Fiscal Year Focus |
|
|
Document Fiscal Period Focus |
|
|
Trading Symbol |
|
|
Entity Registrant Name |
|
|
Entity Central Index Key |
|
|
Current Fiscal Year End Date |
|
|
Entity Well-known Seasoned Issuer |
|
|
Entity Current Reporting Status |
|
|
Entity Filer Category |
|
|
Entity Common Stock, Shares Outstanding |
|