Note 19—Financial instruments:

The following table summarizes the valuation of our short-term investments and financial instruments by the ASC Topic 820 categories as of December 31, 2016 and 2017:

	Fair Value Measurements
	Total			Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
	(In millions)
Asset (liability)
December 31, 2016:
Marketable securities:
Current	$	4.4		$	—	$	4.4		$	—
Noncurrent		253.5			.6		2.9			250.0
Interest rate swap		(3.1	)	$	—	$	(3.1	)	$	—
December 31, 2017:
Marketable securities:
Current	$	3.0		$	—	$	3.0		$	—
Noncurrent		255.7			1.3		4.4			250.0

See Note 6 for information on how we determine the fair value of our marketable securities.

Certain of our sales generated by Chemicals Segment’s non-U.S. operations are denominated in U.S. dollars. Our Chemicals Segment periodically uses currency forward contracts to manage a very nominal portion of currency exchange rate risk associated with trade receivables denominated in a currency other than the holder’s functional currency or similar exchange rate risk associated with future sales. Derivatives that we use are primarily currency forward contracts and interest rate swaps. We have not entered into these contracts for trading or speculative purposes in the past, nor do we currently anticipate entering into such contracts for trading or speculative purposes in the future. Derivatives used to hedge forecasted transactions and specific cash flows associated with financial assets and liabilities denominated in currencies other than the U.S. dollar and which meet the criteria for hedge accounting are designated as cash flow hedges. Consequently, the effective portion of gains and losses is deferred as a component of accumulated other comprehensive income (loss) and is recognized in earnings at the time the hedged item affects earnings. Contracts that do not meet the criteria for hedge accounting are marked-to-market at each balance sheet date with any resulting gain or loss recognized in income currently as part of net currency transactions. The fair value of the currency forward contracts is determined using Level 1 inputs based on the currency spot forward rates quoted by banks or currency dealers.

At December 31, 2017, Kronos had no currency forward contracts outstanding. We did not use hedge accounting for any of our contracts to the extent we held such contracts during 2015, 2016 and 2017.

Interest rate swap contract - As part of our interest rate risk management strategy, in August 2015 Kronos entered into a pay-fixed/receive-variable interest rate swap contract with Wells Fargo Bank, N.A. to minimize our exposure to volatility in LIBOR as it relates to our forecasted outstanding variable-rate indebtedness. Under this interest rate swap, we paid a fixed rate of 2.016% per annum, payable quarterly, and received a variable rate of three-month LIBOR (subject to a 1.00% floor), also payable quarterly, in each case based on the notional amount of the swap then outstanding. The effective date of the swap contract was September 30, 2015. The notional amount of the swap started at $344.8 million and declined by $875,000 each quarter beginning December 31, 2015, with an original final maturity of the swap contract in February 2020. This swap contract was designated as a cash flow hedge and qualified as an effective hedge at inception under ASC Topic 815 in respect of our term loan indebtedness. The effective portion of changes in fair value on this interest rate swap was recorded as a component of other comprehensive income, net of deferred income taxes. Commencing in the fourth quarter of 2015, as interest expense accrued on LIBOR-based variable rate debt, we classified the amount we paid under the pay-fixed leg of the swap and the amount we receive under the receive-variable leg of the swap as part of interest expense, with the net effect that the amount of interest expense we recognize on our LIBOR-based variable rate debt each quarter, as it relates to the notional amount of the swap outstanding each quarter, to be based on a fixed rate of 2.016% per annum in lieu of the level of LIBOR prevailing during the quarter.

In September 2017, in connection with the voluntary prepayment and termination of Kronos’ term loan discussed in Note 8, Kronos voluntarily terminated this swap contract, as it no longer had any exposure to volatility in respect of LIBOR. The cost to us to early terminate the swap contract was $3.3 million, which was paid to Wells Fargo concurrent with the termination. Such $3.3 million charge is classified as part of our loss on prepayment of debt discussed in Note 9. Such $3.3 million amount is also classified as part of the cash paid for interest disclosed in our Condensed Consolidated Statement of Cash Flows for the year ended December 31, 2017.

During 2015, 2016 and 2017 (prior to the termination of the interest rate swap contract), a pretax unrealized loss arising during the periods of $4.4 million, $3.1 million and $2.3 million, respectively, was recognized in other comprehensive income (loss) related to the interest rate swap. During such periods, $.9 million, $3.5 million and $2.1 million, respectively, were reclassified from accumulated other comprehensive loss into earnings and are included in interest expense in our Consolidated Statements of Operations. From the inception of the swap until the swap contract termination, there had been no gains or losses recognized in earnings representing hedge ineffectiveness with respect to the interest rate swap. The fair value of the interest rate swap contract at December 31, 2016 was a $3.1 million liability including $2.9 million recognized as part of accounts payable and accrued liabilities and $.2 million recognized as part of other noncurrent liabilities in our Consolidated Balance Sheet. See Notes 9 and 10.

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure as of December 31, 2016 and 2017:

	December 31, 2016				December 31, 2017
	Carrying amount		Fair value		Carrying amount		Fair value
	(In millions)
Cash, cash equivalents and restricted cash equivalents	$	174.8	$	174.8	$	461.7	$	461.7
Deferred payment obligation		9.0		9.0		9.3		9.3
Long-term debt (excluding capitalized leases):
Kronos term loan	$	335.9	$	334.6	$	—	$	—
Kronos Senior Notes		—		—		471.1		495.1
Snake River Sugar Company fixed rate loans		250.0		250.0		250.0		250.0
Valhi credit facility with Contran		278.9		278.9		284.3		284.3
Tremont promissory note payable		14.5		14.5		13.1		13.1
BMI bank note payable		8.4		8.5		18.8		19.7
LandWell note payable to the City of Henderson		2.9		2.9		2.5		2.5

At December 31, 2016, the estimated market price of Kronos’ term loan was $983 per $1,000 principal amount. At December 31, 2017, the estimated market price of Kronos’ Senior Notes was €1,034 per €1,000 principal amount. The fair value of Kronos’ term loan and Senior Notes was based on quoted market prices; however, these quoted market prices represent Level 2 inputs because the markets in which the term loan trades were not active. The fair value of our fixed-rate nonrecourse loans from Snake River Sugar Company is based upon the $250 million redemption price of our investment in the Amalgamated Sugar Company LLC, which collateralizes the nonrecourse loans, (this is a Level 3 input). Fair values of variable interest rate notes receivable and debt and other fixed-rate debt are deemed to approximate book value. Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value. See Notes 5 and 9.