Amount of distribution from GCP dividend used to pay down Grace debt

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Cash paid to settle deferred payment obligations

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Debt Instrument, Price as Percent of Par Value

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Debt Instrument, Required Redemption Price offered by the company in the event of a change in control, Percentage

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Deferred payment obligations

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Distribution to Grace from GCP

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Final Judgment for Payment, Event of Debt Default

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Length of Delayed Draw Term Loan Facility

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Long-term Debt Maturities, Repayments of Principal Thereafter

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Revised credit facility due to change in covenants following separation

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Senior Secured Credit Facilities to Fund Emergence

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Senior Secured Credit Facility to Fund Emergence

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Term Loans Percent of Original Principal, Annual Amortization

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Weighted average interest rate of debt outstanding.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The amount for notes payable (written promise to pay), due to related parties.

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The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt (Details) € in Millions, $ in Millions	12 Months Ended
Debt (Details) € in Millions, $ in Millions	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)
Notes Payable, Related Parties		$ 31.5			$ 33.4
Deferred payment obligations		28.2			29.1
Debt payable within one year		96.8			84.6
Debt payable after one year		$ 1,919.0			$ 2,144.3
Full-year weighted average interest rates on total debt		4.30%		4.20%	4.20%
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months					$ 84.6
2017					47.1
2018					17.7
2019					17.1
2020					15.6
Thereafter					2,046.8
Total debt		$ 2,015.8			2,228.9
Term Loans, Percent of Original Principal Annual Amortization Amounts	1.00%
Payments for Repurchase of Warrants	$ 490.0
Letters of Credit Outstanding, Amount					343.2
Revised credit facility due to change in covenants following separation					300.0
Distribution to Grace from GCP	750.0
Amount of distribution from GCP dividend used to pay down Grace debt	$ 500.0
Debt Instrument, Price as Percent of Par Value	100.00%
Proceeds from Debt, Net of Issuance Costs	$ 985.5
Cash paid to settle deferred payment obligation	$ 0.0	632.0	$ 0.0
Debt Instrument, Redemption Price, Percentage	100.00%
Debt Instrument, Required Redemption Price, Percentage	101.00%
Final Judgment for Payment, Event of Debt Default					75.0
Debt Instrument, Event of Default, Percent Principal Aggregate Outstanding	25.00%
Term Loan B (USD) [Member]
Senior Secured Credit Facilities to Fund Emergence					700.0
Amount of distribution from GCP dividend used to pay down Grace debt	$ 426.9
Debt Instrument, Unamortized Discount		2.1			1.7
Debt Instrument, Basis Spread on Variable Rate	2.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	2.25%
Term Loan B (EUR) [Member]
Senior Secured Credit Facilities to Fund Emergence					150.0
Amount of distribution from GCP dividend used to pay down Grace debt	$ 67.0
Debt Instrument, Unamortized Discount		$ 0.4			0.4
Debt Instrument, Basis Spread on Variable Rate	2.50%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	2.50%
Revolving Credit Facility [Member]
Senior Secured Credit Facility to Fund Emergence \| €				€ 400
Debt Instrument, Basis Spread on Variable Rate	1.75%	1.75%
Other Debt Obligations [Member]
Total debt		$ 82.3			71.5
Delayed-Draw Term Loan B [Member]
Senior Secured Credit Facilities to Fund Emergence					250.0
Length of Delayed Draw Term Loan Facility	12 months
Debt Instrument, Basis Spread on Variable Rate	2.25%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	2.25%
Senior Notes [Member]
Debt Instrument, Basis Spread on Variable Rate	5.00%	5.00%
Senior Notes					1,000.0
Senior Notes, Due 2021 [Member]
Senior Notes					$ 700.0
Debt Instrument, Interest Rate, Stated Percentage		5.125%		5.125%	5.125%
Senior Notes, Due 2024 [Member]
Senior Notes					$ 300.0
Debt Instrument, Interest Rate, Stated Percentage		5.625%		5.625%	5.625%