10-Q Filing

WESTLAKE CORP CIK: 1262823 Q1 2018

Filing Information

Form Type	10-Q
Accession Number	`0001262823-18-000016`
Period End Date	20180331
Filing Date	20180503
Fiscal Year	2018
Fiscal Period	Q1
XBRL Instance	wlk-20180331.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 76 Income Statement 38 Cash Flow Statement 62 Stockholders Equity 21 Comprehensive Income 16

Balance Sheet 76 line items

Line Item	Tag	Value	Unit	Period
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
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50.00M	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	50.00M	shares	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$851.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.53B	USD	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$1.00B	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
Accounts receivable, net	`ReceivablesNetCurrent`	$1.14B	USD	Point-in-time
Common stock, par value, in dollars per share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Inventories	`InventoryNet`	$900.00M	USD	Point-in-time
Inventories	`InventoryNet`	$944.00M	USD	Point-in-time
Common stock, par value, in dollars per share	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$31.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$29.00M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$2.96B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$3.46B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$6.41B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$6.45B	USD	Point-in-time
Goodwill	`Goodwill`	$1.01B	USD	Point-in-time
Goodwill	`Goodwill`	$1.01B	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$594.00M	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$616.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$160.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$161.00M	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$412.00M	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$434.00M	USD	Point-in-time
Total assets	`Assets`	$12.08B	USD	Point-in-time
Total assets	`Assets`	$11.60B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$600.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$596.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$657.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$596.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$710.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtCurrent`	$461.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.97B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.65B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$2.67B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$3.13B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.11B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.12B	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$344.00M	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$342.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$177.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$158.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$6.71B	USD	Point-in-time
Total liabilities	`Liabilities`	$5.96B	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, 2018 and December 31, 2017, 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, 2018 and December 31, 2017, respectively	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 5,057,732 and 5,232,875 shares at March 31, 2018 and December 31, 2017, respectively	`TreasuryStockValue`	$302.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 5,057,732 and 5,232,875 shares at March 31, 2018 and December 31, 2017, respectively	`TreasuryStockValue`	$292.00M	USD	Point-in-time
Additional Paid in Capital	`AdditionalPaidInCapitalCommonStock`	$555.00M	USD	Point-in-time
Additional Paid in Capital	`AdditionalPaidInCapitalCommonStock`	$555.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.87B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.61B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$3.00M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$7.00M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-104.00M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-121.00M	USD	Point-in-time
Total Westlake Chemical Corporation stockholders' equity	`StockholdersEquity`	$4.87B	USD	Point-in-time
Total Westlake Chemical Corporation stockholders' equity	`StockholdersEquity`	$5.14B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$495.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$500.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.37B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.89B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.64B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.03B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$11.60B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$12.08B	USD	Point-in-time

Income Statement 38 line items

Line Item	Tag	Value	Unit	Period
Net sales	`SalesRevenueNet`	$2.15B	USD	1 Quarter
Net sales	`SalesRevenueNet`	$1.94B	USD	1 Quarter
Cost of sales	`CostOfGoodsSold`	$1.61B	USD	1 Quarter
Cost of sales	`CostOfGoodsSold`	$1.58B	USD	1 Quarter
Gross profit	`GrossProfit`	$542.00M	USD	1 Quarter
Gross profit	`GrossProfit`	$366.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$108.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$99.00M	USD	1 Quarter
Amortization of Intangible Assets	`AmortizationOfIntangibleAssets`	$26.00M	USD	1 Quarter
Amortization of Intangible Assets	`AmortizationOfIntangibleAssets`	$25.00M	USD	1 Quarter
Transaction and integration-related costs	`BusinessCombinationIntegrationRelatedCosts`	$8.00M	USD	1 Quarter
Transaction and integration-related costs	`BusinessCombinationIntegrationRelatedCosts`	$7.00M	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$234.00M	USD	1 Quarter
Income (loss) from operations	`OperatingIncomeLoss`	$401.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$40.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$37.00M	USD	1 Quarter
Other income, net	`NonoperatingIncomeExpense`	$22.00M	USD	1 Quarter
Other income, net	`NonoperatingIncomeExpense`	$7.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$201.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$386.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$89.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$56.00M	USD	1 Quarter
Net income	`ProfitLoss`	$297.00M	USD	1 Quarter
Net income	`ProfitLoss`	$145.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$7.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.00M	USD	1 Quarter
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$138.00M	USD	1 Quarter
Net income attributable to Westlake Chemical Corporation	`NetIncomeLoss`	$287.00M	USD	1 Quarter
Basic (usd per share)	`EarningsPerShareBasic`	$2.21	USD	1 Quarter
Basic (usd per share)	`EarningsPerShareBasic`	$1.07	USD	1 Quarter
Diluted (usd per share)	`EarningsPerShareDiluted`	$2.20	USD	1 Quarter
Diluted (usd per share)	`EarningsPerShareDiluted`	$1.06	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	128.98M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	129.48M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	129.69M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	130.19M	shares	1 Quarter
Dividends per common share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.19	USD	1 Quarter
Dividends per common share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.21	USD	1 Quarter

Cash Flow Statement 62 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$297.00M	USD	1 Quarter
Net income	`ProfitLoss`	$145.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$156.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$150.00M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$6.00M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$6.00M	USD	1 Quarter
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-6.00M	USD	1 Quarter
Loss from disposition of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-3.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$16.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-6.00M	USD	1 Quarter
Other gains, net	`OtherOperatingActivitiesCashFlowStatement`	$-7.00M	USD	1 Quarter
Other gains, net	`OtherOperatingActivitiesCashFlowStatement`	-	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$133.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$65.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$19.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$41.00M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets`	$-2.00M	USD	1 Quarter
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets`	$-6.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-13.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$49.00M	USD	1 Quarter
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-48.00M	USD	1 Quarter
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-122.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-10.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$16.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$225.00M	USD	1 Quarter
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$157.00M	USD	1 Quarter
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$154.00M	USD	1 Quarter
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$134.00M	USD	1 Quarter
Additions to investments in unconsolidated subsidiaries	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	$26.00M	USD	1 Quarter
Additions to investments in unconsolidated subsidiaries	`PaymentsToAcquireAdditionalInterestInSubsidiaries`	$15.00M	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-2.00M	USD	1 Quarter
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.00M	USD	1 Quarter
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-148.00M	USD	1 Quarter
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-178.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$24.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividendsCommonStock`	$27.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$4.00M	USD	1 Quarter
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$7.00M	USD	1 Quarter
Proceeds from debt issuance and drawdown of revolver	`ProceedsFromLongTermLinesOfCredit`	$4.00M	USD	1 Quarter
Proceeds from debt issuance and drawdown of revolver	`ProceedsFromLongTermLinesOfCredit`	$52.00M	USD	1 Quarter
Repayment of term loan	`RepaymentsOfShortTermDebt`	-	USD	1 Quarter
Repayment of term loan	`RepaymentsOfShortTermDebt`	$150.00M	USD	1 Quarter
Repayment of revolver	`RepaymentsOfLinesOfCredit`	-	USD	1 Quarter
Repayment of revolver	`RepaymentsOfLinesOfCredit`	$125.00M	USD	1 Quarter
Repayment of notes payable	`RepaymentsOfNotesPayable`	$2.00M	USD	1 Quarter
Repayment of notes payable	`RepaymentsOfNotesPayable`	$706.00M	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	1 Quarter
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$5.00M	USD	1 Quarter
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-253.00M	USD	1 Quarter
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-731.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashAndCashEquivalents`	$4.00M	USD	1 Quarter
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashAndCashEquivalents`	$3.00M	USD	1 Quarter
Net decrease in cash, cash equivalents and restricted cash	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-680.00M	USD	1 Quarter
Net decrease in cash, cash equivalents and restricted cash	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-241.00M	USD	1 Quarter
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.55B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$874.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$405.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$646.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.55B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$874.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$405.00M	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$646.00M	USD	Point-in-time

Stockholders Equity 21 line items

Line Item	Tag	Value	Unit	Period
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.37B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.89B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.64B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.03B	USD	Point-in-time
Cumulative effect of accounting change	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$1.00M	USD	Point-in-time
Net income	`ProfitLoss`	$297.00M	USD	1 Quarter
Net income	`ProfitLoss`	$145.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$20.00M	USD	1 Quarter
Shares issuedstock- based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$6.00M	USD	1 Quarter
Shares issuedstock- based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.00M	USD	1 Quarter
Stock-based compensation, net of tax on stock options exercised	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$3.00M	USD	1 Quarter
Stock-based compensation, net of tax on stock options exercised	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$4.00M	USD	1 Quarter
Dividends declared	`DividendsCommonStockCash`	$27.00M	USD	1 Quarter
Dividends declared	`DividendsCommonStockCash`	$24.00M	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$7.00M	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$4.00M	USD	1 Quarter
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.37B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.89B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.64B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.03B	USD	Point-in-time

Comprehensive Income 16 line items

Line Item	Tag	Value	Unit	Period
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$1.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$1.00M	USD	1 Quarter
Net income	`ProfitLoss`	$297.00M	USD	1 Quarter
Net income	`ProfitLoss`	$145.00M	USD	1 Quarter
Foreign currency translation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax`	$19.00M	USD	1 Quarter
Foreign currency translation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax`	$-6.00M	USD	1 Quarter
Income tax benefit (provision) on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$-4.00M	USD	1 Quarter
Income tax benefit (provision) on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$2.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-2.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$17.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$295.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$162.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests, net of tax of $1 and $1 for the three months ended March 31, 2018 and 2017, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests, net of tax of $1 and $1 for the three months ended March 31, 2018 and 2017, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$6.00M	USD	1 Quarter
Comprehensive income attributable to Westlake Chemical Corporation	`ComprehensiveIncomeNetOfTax`	$156.00M	USD	1 Quarter
Comprehensive income attributable to Westlake Chemical Corporation	`ComprehensiveIncomeNetOfTax`	$283.00M	USD	1 Quarter

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