CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 432.3	$ 322.0
Restricted cash	1.1	1.7
Accounts and other receivables	340.7	346.5
Inventories, net	446.2	382.3
Prepaid expenses and other	18.1	10.0
Total current assets	1,238.4	1,062.5
Other assets:
Investment in TiO2 manufacturing joint venture	79.7	86.5
Marketable securities	4.0	10.7
Note receivable from Valhi		13.6
Deferred income taxes	115.6	139.2
Other	5.3	5.5
Total other assets	204.6	255.5
Property and equipment:
Land	41.4	42.0
Buildings	217.8	221.6
Equipment	1,125.7	1,103.2
Mining properties	119.5	115.7
Construction in progress	34.8	52.6
Gross property and equipment	1,539.2	1,535.1
Less accumulated depreciation and amortization	1,047.3	1,028.7
Net property and equipment	491.9	506.4
Total assets	1,934.9	1,824.4
Current liabilities:
Current maturities of long-term debt	0.7	0.7
Accounts payable and accrued liabilities	212.3	205.8
Income taxes	36.6	25.0
Total current liabilities	249.6	231.5
Noncurrent liabilities:
Long-term debt	465.2	473.8
Accrued pension costs	247.5	254.2
Accrued postretirement benefits costs	7.5	7.7
Payable to affiliate - income taxes	58.1	70.1
Deferred income taxes	11.9	11.3
Other	21.7	21.5
Total noncurrent liabilities	811.9	838.6
Stockholders' equity:
Common stock	1.2	1.2
Additional paid-in capital	1,399.1	1,399.0
Retained deficit	(140.5)	(267.2)
Accumulated other comprehensive loss	(386.4)	(378.7)
Total stockholders' equity	873.4	754.3
Total liabilities and stockholders' equity	1,934.9	1,824.4
Commitments and contingencies (Notes 11 and 13)