Commitments and Contingent Liabilities	6 Months Ended
Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities GCP enters into certain purchase commitments and is a party to many contracts containing guarantees and indemnification obligations, as described in Note 9, "Commitments and Contingent Liabilities" to the Company's Consolidated Financial Statements included in the 2017 Annual Report in the Form 10-K. There have been no material changes to these commitments and obligations during the three and six months ended June 30, 2018. Environmental Matters GCP is subject to loss contingencies resulting from extensive and evolving federal, state, local and foreign environmental laws and regulations relating to the generation, storage, handling, discharge, disposition and stewardship of hazardous wastes and other materials. GCP recognizes accrued liabilities for anticipated costs associated with response efforts if, based on the results of the assessment, it concluded that a probable liability has been incurred and the cost can be reasonably estimated. As of June 30, 2018 and December 31, 2017, GCP did not have any material environmental liabilities. GCP's environmental liabilities are reassessed whenever circumstances become better defined or response efforts and their costs can be better estimated. These liabilities are evaluated based on currently available information, including the progress of remedial investigations at each site, the current status of discussions with regulatory authorities regarding the method and extent of remediation at each site, existing technology, prior experience in contaminated site remediation and the apportionment of costs among potentially responsible parties. Financial Assurances Financial assurances have been established for a variety of purposes, including insurance, environmental matters and other matters. At June 30, 2018 and December 31, 2017, GCP had gross financial assurances issued and outstanding of approximately $7 million and $10 million, respectively, which were composed of standby letters of credit. Lawsuits and Investigations From time to time, GCP and its subsidiaries are parties to, or targets of, lawsuits, claims, investigations and proceedings which are managed and defended in the ordinary course of business. While GCP is unable to predict the outcome of these matters, it does not believe, based upon currently available facts, that the ultimate resolution of any of such pending matters will have a material adverse effect on its overall financial condition, results of operations or cash flows for the three and six months ended June 30, 2018. Accounting for Contingencies Although the outcome of each of the matters discussed above cannot be predicted with certainty, GCP has assessed the risk and has made accounting estimates and disclosures as required under GAAP.

Commitments and Contingent Liabilities

GCP enters into certain purchase commitments and is a party to many contracts containing guarantees and indemnification obligations, as described in Note 9, "Commitments and Contingent Liabilities" to the Company's Consolidated Financial Statements included in the 2017 Annual Report in the Form 10-K. There have been no material changes to these commitments and obligations during the three and six months ended June 30, 2018.

Environmental Matters

GCP is subject to loss contingencies resulting from extensive and evolving federal, state, local and foreign environmental laws and regulations relating to the generation, storage, handling, discharge, disposition and stewardship of hazardous wastes and other materials. GCP recognizes accrued liabilities for anticipated costs associated with response efforts if, based on the results of the assessment, it concluded that a probable liability has been incurred and the cost can be reasonably estimated. As of June 30, 2018 and December 31, 2017, GCP did not have any material environmental liabilities.

GCP's environmental liabilities are reassessed whenever circumstances become better defined or response efforts and their costs can be better estimated. These liabilities are evaluated based on currently available information, including the progress of remedial investigations at each site, the current status of discussions with regulatory authorities regarding the method and extent of remediation at each site, existing technology, prior experience in contaminated site remediation and the apportionment of costs among potentially responsible parties.

Financial Assurances

Financial assurances have been established for a variety of purposes, including insurance, environmental matters and other matters. At June 30, 2018 and December 31, 2017, GCP had gross financial assurances issued and outstanding of approximately $7 million and $10 million, respectively, which were composed of standby letters of credit.

Lawsuits and Investigations

From time to time, GCP and its subsidiaries are parties to, or targets of, lawsuits, claims, investigations and proceedings which are managed and defended in the ordinary course of business. While GCP is unable to predict the outcome of these matters, it does not believe, based upon currently available facts, that the ultimate resolution of any of such pending matters will have a material adverse effect on its overall financial condition, results of operations or cash flows for the three and six months ended June 30, 2018.

Accounting for Contingencies

Although the outcome of each of the matters discussed above cannot be predicted with certainty, GCP has assessed the risk and has made accounting estimates and disclosures as required under GAAP.