Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 371	$ 427
Short-term marketable securities	59	62
Receivables (net of reserves 2017 - $8 and 2016 - $8)	234	183
Inventories	249	236
Income taxes receivable	1	1
Other current assets	35	40
Total current assets	949	949
Long-term marketable securities	33	29
Property, plant and equipment (net of accumulated depreciation and depletion - 2017 - $2,026 and 2016 - $1,960)	1,718	1,707
Deferred income taxes	469	492
Equity method investments	656	628
Other assets	62	64
Total assets	3,887	3,869
Liabilities and Stockholders’ Equity
Accounts payable	242	237
Accrued expenses	133	175
Income taxes payable	4	10
Total current liabilities	379	422
Long-term debt	1,077	1,083
Deferred income taxes	4	4
Pension and other postretirement benefits	272	290
Other liabilities	187	184
Total liabilities	1,919	1,983
Preferred stock – $1 par value, authorized 36,000,000 shares; outstanding - none	0	0
Common stock – $0.10 par value; authorized 200,000,000 shares; issued: 2017 - 143,410,000 shares and 2016 - 146,167,000 shares	15	15
Treasury stock at cost; 2017 - 3,103,000 shares and 2016 - 0 shares	(95)	0
Additional paid-in capital	3,043	3,038
Accumulated other comprehensive loss	(329)	(385)
Retained earnings (accumulated deficit)	(666)	(782)
Total stockholders’ equity	1,968	1,886
Total liabilities and stockholders’ equity	$ 3,887	$ 3,869