Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 1,055	$ 1,908
Accounts receivable, net	2,352	1,868
Inventories	1,884	1,407
Prepaid expenses and other current assets	114	80
Total current assets	5,405	5,263
Property, plant and equipment, net	8,276	7,606
Operating lease right-of-use assets	631	562
Goodwill	2,140	2,024
Customer relationships, net	1,080	1,083
Other intangible assets, net	612	497
Equity method investments	1,105	1,007
Other assets, net	492	417
Total assets	19,741	18,459
Current liabilities
Accounts payable	1,018	879
Accrued and other liabilities	1,268	1,196
Current portion of long-term debt, net	264	269
Total current liabilities	2,550	2,344
Long-term debt, net	4,902	4,911
Deferred income taxes	1,815	1,681
Pension and other post-retirement benefits	443	291
Operating lease liabilities	514	461
Other liabilities	265	243
Total liabilities	10,489	9,931
Commitments and contingencies (Note 14)
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, 2022 and December 31, 2021, respectively	1	1
Common stock, held in treasury, at cost; 6,331,896 and 6,735,639 shares at March 31, 2022 and December 31, 2021, respectively	(372)	(399)
Additional paid-in capital	572	581
Retained earnings	8,525	7,808
Accumulated other comprehensive loss	(45)	(36)
Total Westlake Corporation stockholders' equity	8,681	7,955
Noncontrolling interests	571	573
Total equity	9,252	8,528
Total liabilities and equity	$ 19,741	$ 18,459