Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 482	$ 1,531
Accounts receivable, net	1,261	1,001
Inventories	905	900
Prepaid expenses and other current assets	46	31
Total current assets	2,694	3,463
Property, plant and equipment, net	6,468	6,412
Goodwill	1,006	1,012
Customer relationships, net	569	616
Other intangible assets, net	149	161
Other assets, net	460	412
Total assets	11,346	12,076
Current liabilities
Accounts payable	582	600
Accrued liabilities	604	657
Current portion of long-term debt, net	0	710
Total current liabilities	1,186	1,967
Long-term debt, net	2,666	3,127
Deferred income taxes	1,153	1,111
Pension and other post-retirement benefits	332	344
Other liabilities	163	158
Total liabilities	5,500	6,707
Stockholders' equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,651,380 and 134,651,380 shares issued at June 30, 2018 and December 31, 2017, respectively	1	1
Common stock, held in treasury, at cost; 4,999,765 and 5,232,875 shares at June 30, 2018 and December 31, 2017, respectively	(289)	(302)
Additional Paid in Capital	558	555
Retained earnings	5,125	4,613
Accumulated other comprehensive income (loss)	(33)	7
Total Westlake Chemical Corporation stockholders' equity	5,362	4,874
Noncontrolling interests	484	495
Total equity	5,846	5,369
Total liabilities and equity	$ 11,346	$ 12,076