Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 1,537	$ 728
Accounts receivable, net	1,265	1,036
Inventories	934	936
Prepaid expenses and other current assets	32	42
Total current assets	3,768	2,742
Property, plant and equipment, net	6,883	6,912
Operating lease right-of-use assets	432	443
Goodwill	1,065	1,074
Customer relationships, net	497	523
Other intangible assets, net	180	187
Equity method investments	1,065	1,112
Other assets, net	273	268
Total assets	14,163	13,261
Current liabilities
Accounts payable	431	473
Accrued and other liabilities	593	768
Total current liabilities	1,024	1,241
Long-term debt, net	4,432	3,445
Deferred income taxes	1,386	1,255
Pension and other post-retirement benefits	352	360
Operating lease liabilities	346	355
Other liabilities	185	202
Total liabilities	7,725	6,858
Commitments and contingencies (Note 13)
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 March 31, 2020 and December 31, 2019, respectively	1	1
Common stock, held in treasury, at cost; 6,979,662 and 6,266,609 shares at March 31, 2020 and December 31, 2019, respectively	(413)	(377)
Additional paid-in capital	551	553
Retained earnings	5,860	5,757
Accumulated other comprehensive loss	(106)	(74)
Total Westlake Chemical Corporation stockholders' equity	5,893	5,860
Noncontrolling interests	545	543
Total equity	6,438	6,403
Total liabilities and equity	$ 14,163	$ 13,261