Components of Debt



(In millions)	September 30, 2017			December 31, 2016
5.125% senior notes due 2021, net of unamortized debt issuance costs of $6.2 at September 30, 2017 (2016—$7.3)	$	693.8		$	692.7
U.S. dollar term loan, net of unamortized debt issuance costs and discounts of $4.7 at September 30, 2017 (2016—$5.7)	403.7			402.7
5.625% senior notes due 2024, net of unamortized debt issuance costs of $3.6 at September 30, 2017 (2016—$4.0)	296.4			296.0
Euro term loan, net of unamortized debt issuance costs and discounts of $1.0 at September 30, 2017 (2016—$1.3)	93.1			82.5
Debt payable to unconsolidated affiliate	41.4			39.5
Deferred payment obligation	—			30.0
Other borrowings(1)	40.0			40.7
Total debt	1,568.4			1,584.1
Less debt payable within one year	46.5			76.5
Debt payable after one year	$	1,521.9		$	1,507.6
Weighted average interest rates on total debt	4.7		%	4.6		%

___________________________________________________________________________________________________________________

(1) Represents borrowings under various lines of credit and other borrowings, primarily by non-U.S. subsidiaries.

See Note 4 for a discussion of the fair value of Grace's debt.

The principal maturities of debt outstanding at September 30, 2017, were as follows:



	(In millions)
2017	$	40.4
2018	8.8
2019	8.3
2020	7.0
2021	1,196.1
Thereafter	307.8
Total debt	$	1,568.4

On February 3, 2017, Grace funded the PD trust with $30.0 million in respect of the deferred payment obligation relating to ZAI PD Claims. (See Note 8.)

Grace also maintains a $300 million revolving credit facility. As of September 30, 2017, the available credit under this facility was reduced to $265.0 million by outstanding letters of credit.

During the 2016 first quarter, in connection with the Separation, GCP distributed $750 million to Grace. Grace used $600 million of those funds to repay $526.9 million of its U.S. dollar term loan and €67.3 million of its euro term loan. As a result, Grace recorded a loss on early extinguishment of debt of $11.1 million, which is included in "other (income) expense, net" in the Consolidated Statements of Operations.