CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 371.2	$ 406.0
Restricted cash	1.6	2.1
Accounts and other receivables, net	404.3	379.1
Inventories, net	435.0	432.3
Prepaid expenses and other	35.8	38.5
Total current assets	1,247.9	1,258.0
Other assets:
Investment in TiO2 manufacturing joint venture	106.0	101.9
Restricted cash	4.7	4.5
Marketable securities	6.5	4.2
Operating lease right-of-use assets	19.3	19.9
Deferred income taxes	93.9	106.8
Other	13.2	14.1
Total other assets	243.6	251.4
Property and equipment:
Land	41.0	43.9
Buildings	211.3	222.2
Equipment	1,070.0	1,122.1
Mining properties	116.6	129.6
Construction in progress	66.1	72.7
Gross property and equipment	1,505.0	1,590.5
Less accumulated depreciation and amortization	1,033.0	1,087.1
Net property and equipment	472.0	503.4
Total assets	1,963.5	2,012.8
Current liabilities:
Current maturities of long-term debt	1.4	1.4
Accounts payable and accrued liabilities	267.6	275.1
Income taxes	12.5	12.3
Total current liabilities	281.5	288.8
Noncurrent liabilities:
Long-term debt	415.8	449.8
Accrued pension costs	263.6	287.4
Payable to affiliate - income taxes	33.5	44.7
Operating lease liabilities	15.5	15.8
Deferred income taxes	25.4	28.1
Other	24.6	28.0
Total noncurrent liabilities	778.4	853.8
Stockholders' equity:
Common stock	1.2	1.2
Additional paid-in capital	1,394.2	1,395.4
Retained deficit	(62.6)	(122.1)
Accumulated other comprehensive loss	(429.2)	(404.1)
Treasury stock, at cost		(0.2)
Total stockholders' equity	903.6	870.2
Total liabilities and stockholders' equity	1,963.5	2,012.8
Commitments and contingencies (Notes 10 and 12)