Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 753	$ 1,531
Accounts receivable, net	1,037	1,001
Inventories	1,014	900
Prepaid expenses and other current assets	38	31
Total current assets	2,842	3,463
Property, plant and equipment, net	6,595	6,412
Goodwill	1,002	1,012
Customer relationships, net	525	616
Other intangible assets, net	134	161
Other assets, net	504	412
Total assets	11,602	12,076
Current liabilities
Accounts payable	507	600
Accrued liabilities	676	657
Current portion of long-term debt, net	0	710
Total current liabilities	1,183	1,967
Long-term debt, net	2,668	3,127
Deferred income taxes	1,159	1,111
Pension and other post-retirement benefits	337	344
Other liabilities	179	158
Total liabilities	5,526	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 December 31, 2018 and 2017, respectively	1	1
Common stock, held in treasury, at cost; 6,183,125 and 5,232,875 shares at December 31, 2018 and 2017, respectively	(382)	(302)
Additional paid-in capital	556	555
Retained earnings	5,477	4,613
Accumulated other comprehensive income (loss)	(62)	7
Total Westlake Chemical Corporation stockholders' equity	5,590	4,874
Noncontrolling interests	486	495
Total equity	6,076	5,369
Total liabilities and equity	$ 11,602	$ 12,076