10-Q Filing

WESTLAKE CORP CIK: 1262823 Q1 2021

Filing Information

Form Type	10-Q
Accession Number	`0001262823-21-000036`
Period End Date	20210331
Filing Date	20210505
Fiscal Year	2021
Fiscal Period	Q1
XBRL Instance	wlk-20210331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 78 Income Statement 34 Cash Flow Statement 64 Stockholders Equity 26 Comprehensive Income 14

Balance Sheet 78 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.39B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.31B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$1.21B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$1.33B	USD	Point-in-time
Inventories	`InventoryNet`	$955.00M	USD	Point-in-time
Inventories	`InventoryNet`	$918.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$59.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$32.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$3.48B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$3.73B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$6.92B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$6.92B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$467.00M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$461.00M	USD	Point-in-time
Goodwill	`Goodwill`	$1.08B	USD	Point-in-time
Goodwill	`Goodwill`	$1.08B	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$419.00M	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$444.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$160.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$168.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$1.03B	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$1.06B	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$238.00M	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$223.00M	USD	Point-in-time
Total assets	`Assets`	$14.05B	USD	Point-in-time
Total assets	`Assets`	$13.84B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$536.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$603.00M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$821.00M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$723.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.33B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.36B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$3.55B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$3.57B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.39B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.37B	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$378.00M	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$391.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$376.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$383.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$199.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$206.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$7.22B	USD	Point-in-time
Total liabilities	`Liabilities`	$7.26B	USD	Point-in-time
Commitments and contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,651,380 and 134,651,380 shares issued at March 31, 2021 and December 31, 2020, respectively	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,651,380 and 134,651,380 shares issued at March 31, 2021 and December 31, 2020, respectively	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 6,520,062 and 6,821,174 shares at March 31, 2021 and December 31, 2020, respectively	`TreasuryStockValue`	$379.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 6,520,062 and 6,821,174 shares at March 31, 2021 and December 31, 2020, respectively	`TreasuryStockValue`	$401.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$569.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$564.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$6.14B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$5.94B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-70.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-64.00M	USD	Point-in-time
Total Westlake Chemical Corporation stockholders' equity	`StockholdersEquity`	$6.26B	USD	Point-in-time
Total Westlake Chemical Corporation stockholders' equity	`StockholdersEquity`	$6.04B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$535.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$564.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.44B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.40B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$14.05B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$13.84B	USD	Point-in-time
Preferred stock, par value, in dollars per share	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, par value, in dollars per share	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value, in dollars per share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value, in dollars per share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50.00M	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time

Income Statement 34 line items

Line Item	Tag	Value	Unit	Period
Net sales	`Revenues`	$1.93B	USD	1 Quarter
Net sales	`Revenues`	$2.36B	USD	1 Quarter
Cost of sales	`CostOfGoodsAndServicesSold`	$1.65B	USD	1 Quarter
Cost of sales	`CostOfGoodsAndServicesSold`	$1.85B	USD	1 Quarter
Gross profit	`GrossProfit`	$283.00M	USD	1 Quarter
Gross profit	`GrossProfit`	$509.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$120.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$136.00M	USD	1 Quarter
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$27.00M	USD	1 Quarter
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$27.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$136.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$346.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$31.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$33.00M	USD	1 Quarter
Other income, net	`NonoperatingIncomeExpense`	$11.00M	USD	1 Quarter
Other income, net	`NonoperatingIncomeExpense`	$12.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$325.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$116.00M	USD	1 Quarter
Provision for (benefit from) income taxes	`IncomeTaxExpenseBenefit`	$72.00M	USD	1 Quarter
Provision for (benefit from) income taxes	`IncomeTaxExpenseBenefit`	$-41.00M	USD	1 Quarter
Net income	`ProfitLoss`	$253.00M	USD	1 Quarter
Net income	`ProfitLoss`	$157.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$11.00M	USD	1 Quarter
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$242.00M	USD	1 Quarter
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.88	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.13	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.13	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.87	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	127.96M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	128.24M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	128.48M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	128.44M	shares	1 Quarter

Cash Flow Statement 64 line items

Line Item	Tag	Value	Unit	Period
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$1.00M	USD	1 Quarter
Net income	`ProfitLoss`	$253.00M	USD	1 Quarter
Net income	`ProfitLoss`	$157.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$195.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$190.00M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$8.00M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$6.00M	USD	1 Quarter
Loss from disposition and write-off of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-4.00M	USD	1 Quarter
Loss from disposition and write-off of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-5.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$10.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$126.00M	USD	1 Quarter
Other losses (gains), net	`OtherOperatingActivitiesCashFlowStatement`	$-2.00M	USD	1 Quarter
Other losses (gains), net	`OtherOperatingActivitiesCashFlowStatement`	$3.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$120.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$240.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$8.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$42.00M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$12.00M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-7.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$75.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-2.00M	USD	1 Quarter
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-146.00M	USD	1 Quarter
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-84.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$25.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$32.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$61.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$265.00M	USD	1 Quarter
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$141.00M	USD	1 Quarter
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$164.00M	USD	1 Quarter
Return of (additions to) investment from unconsolidated subsidiaries	`PaymentsToAcquireAdditionalInterestsInSubsidiariesAndProceedsFromEquityMethodInvestmentDistributionReturnOfCapital`	$7.00M	USD	1 Quarter
Return of (additions to) investment from unconsolidated subsidiaries	`PaymentsToAcquireAdditionalInterestsInSubsidiariesAndProceedsFromEquityMethodInvestmentDistributionReturnOfCapital`	$-39.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-13.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$7.00M	USD	1 Quarter
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-135.00M	USD	1 Quarter
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-132.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$11.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$10.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$34.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$35.00M	USD	1 Quarter
Proceeds from debt issuance	`ProceedsFromIssuanceOfDebt`	-	USD	1 Quarter
Proceeds from debt issuance	`ProceedsFromIssuanceOfDebt`	$4.00M	USD	1 Quarter
Net proceeds from (repayment of) short-term notes payable	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	-	USD	1 Quarter
Net proceeds from (repayment of) short-term notes payable	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-21.00M	USD	1 Quarter
Proceeds from drawdown of revolver	`ProceedsFromLongTermLinesOfCredit`	$1.00B	USD	1 Quarter
Proceeds from drawdown of revolver	`ProceedsFromLongTermLinesOfCredit`	-	USD	1 Quarter
Repurchase of common stock for treasury	`PaymentsForRepurchaseOfCommonStock`	$54.00M	USD	1 Quarter
Repurchase of common stock for treasury	`PaymentsForRepurchaseOfCommonStock`	-	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$2.00M	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$8.00M	USD	1 Quarter
Net cash provided by (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-34.00M	USD	1 Quarter
Net cash provided by (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$883.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashAndCashEquivalents`	$-3.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashAndCashEquivalents`	$-3.00M	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$93.00M	USD	1 Quarter
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$809.00M	USD	1 Quarter
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.34B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.43B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.56B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$750.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.34B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.43B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.56B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$750.00M	USD	Point-in-time

Stockholders Equity 26 line items

Line Item	Tag	Value	Unit	Period
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.44B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.40B	USD	Point-in-time
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$242.00M	USD	1 Quarter
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$11.00M	USD	1 Quarter
Net income	`ProfitLoss`	$253.00M	USD	1 Quarter
Net income	`ProfitLoss`	$157.00M	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-32.00M	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-7.00M	USD	1 Quarter
Common stock repurchased	`TreasuryStockValueAcquiredCostMethod`	$54.00M	USD	1 Quarter
Shares issuedstock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$2.00M	USD	1 Quarter
Shares issuedstock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$9.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$6.00M	USD	1 Quarter
Dividends declared	`DividendsCommonStockCash`	$34.00M	USD	1 Quarter
Dividends declared	`DividendsCommonStockCash`	$35.00M	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$11.00M	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$10.00M	USD	1 Quarter
Noncontrolling Interest, Increase from Consolidating Previously Unconsolidated Subsidiary	`NoncontrollingInterestIncreaseFromConsolidatingPreviouslyUnconsolidatedSubsidiary`	$30.00M	USD	1 Quarter
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.44B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.40B	USD	Point-in-time

Comprehensive Income 14 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$253.00M	USD	1 Quarter
Net income	`ProfitLoss`	$157.00M	USD	1 Quarter
Foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$3.00M	USD	1 Quarter
Foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax`	$-25.00M	USD	1 Quarter
Income tax provision on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$10.00M	USD	1 Quarter
Income tax provision on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$7.00M	USD	1 Quarter
Other comprehensive loss, net of income taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-32.00M	USD	1 Quarter
Other comprehensive loss, net of income taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-7.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$125.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$246.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests, net of tax of $0 and $1 for the three months ended March 31, 2021 and 2020, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests, net of tax of $0 and $1 for the three months ended March 31, 2021 and 2020, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$10.00M	USD	1 Quarter
Comprehensive income attributable to Westlake Chemical Corporation	`ComprehensiveIncomeNetOfTax`	$236.00M	USD	1 Quarter
Comprehensive income attributable to Westlake Chemical Corporation	`ComprehensiveIncomeNetOfTax`	$113.00M	USD	1 Quarter

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.