10-K Filing

WESTLAKE CORP CIK: 1262823 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0001262823-24-000014`
Period End Date	20231231
Filing Date	20240222
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	wlk-20231231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 88 Income Statement 57 Cash Flow Statement 98 Stockholders Equity 39 Comprehensive Income 30

Balance Sheet 88 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
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.30B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$2.23B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$1.80B	USD	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$1.60B	USD	Point-in-time
Preferred stock, shares outstanding	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Inventories	`InventoryNet`	$1.62B	USD	Point-in-time
Common stock, par value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Inventories	`InventoryNet`	$1.87B	USD	Point-in-time
Common Stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$82.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$78.00M	USD	Point-in-time
Common Stock, shares authorized	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common Stock, Shares	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Common Stock, Shares	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Total current assets	`AssetsCurrent`	$6.61B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$5.97B	USD	Point-in-time
Treasury Stock, Shares	`TreasuryStockCommonShares`	7.28M	shares	Point-in-time
Treasury Stock, Shares	`TreasuryStockCommonShares`	6.44M	shares	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.52B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.48B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$615.00M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$697.00M	USD	Point-in-time
Goodwill	`Goodwill`	$2.02B	USD	Point-in-time
Goodwill	`Goodwill`	$2.16B	USD	Point-in-time
Goodwill	`Goodwill`	$2.04B	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$993.00M	USD	Point-in-time
Customer relationships, net	`FiniteLivedIntangibleAssetsNet`	$910.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$572.00M	USD	Point-in-time
Other intangible assets, net	`OtherIntangibleAssetsNet`	$493.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$1.14B	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$1.11B	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$617.00M	USD	Point-in-time
Other assets, net	`DeferredCostsAndOtherAssets`	$651.00M	USD	Point-in-time
Total assets	`Assets`	$21.04B	USD	Point-in-time
Total assets	`Assets`	$20.55B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$877.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$889.00M	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$1.41B	USD	Point-in-time
Accrued and other liabilities	`AccruedLiabilitiesCurrent`	$1.61B	USD	Point-in-time
Current portion of long-term debt, net	`LongTermDebtCurrent`	-	USD	Point-in-time
Current portion of long-term debt, net	`LongTermDebtCurrent`	$299.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.30B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.79B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$4.88B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$4.61B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.56B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.74B	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$355.00M	USD	Point-in-time
Pension and other post-retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$363.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$611.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$504.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$314.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$340.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$10.27B	USD	Point-in-time
Total liabilities	`Liabilities`	$10.09B	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies	`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 December 31, 2023 and 2022, 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 December 31, 2023 and 2022, respectively	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 6,439,289 and 7,278,651 shares at December 31, 2023 and 2022, respectively	`TreasuryStockValue`	$435.00M	USD	Point-in-time
Common stock, held in treasury, at cost; 6,439,289 and 7,278,651 shares at December 31, 2023 and 2022, respectively	`TreasuryStockValue`	$467.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$601.00M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$630.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$10.14B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$9.88B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-98.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-89.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-36.00M	USD	Point-in-time
Total Westlake Corporation stockholders' equity	`StockholdersEquity`	$9.93B	USD	Point-in-time
Total Westlake Corporation stockholders' equity	`StockholdersEquity`	$10.24B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$523.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$534.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.76B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.46B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.53B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$20.55B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$21.04B	USD	Point-in-time

Income Statement 57 line items

Line Item	Tag	Value	Unit	Period
Net sales	`Revenues`	$11.78B	USD	Annual
Net sales	`Revenues`	$12.55B	USD	Annual
Net sales	`Revenues`	$15.79B	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$8.28B	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$11.72B	USD	Annual
Cost of sales	`CostOfGoodsAndServicesSold`	$10.33B	USD	Annual
Gross profit	`GrossProfit`	$3.50B	USD	Annual
Gross profit	`GrossProfit`	$4.07B	USD	Annual
Gross profit	`GrossProfit`	$2.22B	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$835.00M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$865.00M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$551.00M	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	-	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	-	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	$475.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$155.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$122.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$123.00M	USD	Annual
Restructuring, transaction and integration-related costs	`RestructuringTransactionAndIntegrationCost`	$28.00M	USD	Annual
Restructuring, transaction and integration-related costs	`RestructuringTransactionAndIntegrationCost`	$21.00M	USD	Annual
Restructuring, transaction and integration-related costs	`RestructuringTransactionAndIntegrationCost`	$33.00M	USD	Annual
Income from operations	`OperatingIncomeLoss`	$2.80B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$3.05B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$729.00M	USD	Annual
Interest expense	`InterestExpense`	$165.00M	USD	Annual
Interest expense	`InterestExpense`	$177.00M	USD	Annual
Interest expense	`InterestExpense`	$176.00M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$73.00M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$53.00M	USD	Annual
Other income, net	`NonoperatingIncomeExpense`	$136.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$700.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.68B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.95B	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$649.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$178.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$607.00M	USD	Annual
Net income	`ProfitLoss`	$522.00M	USD	Annual
Net income	`ProfitLoss`	$2.07B	USD	Annual
Net income	`ProfitLoss`	$2.30B	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$55.00M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$43.00M	USD	Annual
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$50.00M	USD	Annual
Net income attributable to Westlake Corporation	`NetIncomeLoss`	$2.02B	USD	Annual
Net income attributable to Westlake Corporation	`NetIncomeLoss`	$479.00M	USD	Annual
Net income attributable to Westlake Corporation	`NetIncomeLoss`	$2.25B	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$3.73	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$15.66	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$17.46	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$17.34	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$15.58	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.70	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	127.81M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	127.97M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	128.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	128.85M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	128.70M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	128.60M	shares	Annual

Cash Flow Statement 98 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$522.00M	USD	Annual
Net income	`ProfitLoss`	$2.07B	USD	Annual
Net income	`ProfitLoss`	$2.30B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.10B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.06B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$840.00M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$36.00M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$43.00M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$31.00M	USD	Annual
Loss from disposition and write-off of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-46.00M	USD	Annual
Loss from disposition and write-off of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-28.00M	USD	Annual
Loss from disposition and write-off of property, plant and equipment	`GainLossOnDispositionOfAssets`	$-45.00M	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	-	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	-	USD	Annual
Impairment of goodwill and long-lived assets	`AssetImpairmentCharges`	$475.00M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$23.00M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-175.00M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-21.00M	USD	Annual
Other (gains) losses, net	`OtherOperatingActivitiesCashFlowStatement`	$5.00M	USD	Annual
Other (gains) losses, net	`OtherOperatingActivitiesCashFlowStatement`	$16.00M	USD	Annual
Other (gains) losses, net	`OtherOperatingActivitiesCashFlowStatement`	$-3.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$528.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-325.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-225.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$140.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$309.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-250.00M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets`	$19.00M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets`	$27.00M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets`	$-5.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-153.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-26.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$242.00M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$137.00M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$170.00M	USD	Annual
Accrued and other liabilities	`IncreaseDecreaseInAccruedLiabilities`	$239.00M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$268.00M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$231.00M	USD	Annual
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$198.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.34B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.40B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.39B	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$2.55B	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.20B	USD	Annual
Acquisition of businesses, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Additions to investments in unconsolidated subsidiaries	`AdditionsToInvestmentsInUnconsolidatedSubsidiaries`	$180.00M	USD	Annual
Additions to investments in unconsolidated subsidiaries	`AdditionsToInvestmentsInUnconsolidatedSubsidiaries`	$24.00M	USD	Annual
Additions to investments in unconsolidated subsidiaries	`AdditionsToInvestmentsInUnconsolidatedSubsidiaries`	$25.00M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.03B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.11B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$658.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-22.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-23.00M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-12.00M	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.04B	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.48B	USD	Annual
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.21B	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$18.00M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$48.00M	USD	Annual
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$54.00M	USD	Annual
Distributions to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$60.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$145.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$221.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$169.00M	USD	Annual
Proceeds from debt issuance and drawdown of revolver, net	`ProceedsFromIssuanceOfDebt`	-	USD	Annual
Proceeds from debt issuance and drawdown of revolver, net	`ProceedsFromIssuanceOfDebt`	-	USD	Annual
Proceeds from debt issuance and drawdown of revolver, net	`ProceedsFromIssuanceOfDebt`	$1.67B	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$18.00M	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$44.00M	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$13.00M	USD	Annual
Repayment of revolver and senior notes	`RepaymentsOfLongTermDebt`	$250.00M	USD	Annual
Repayment of revolver and senior notes	`RepaymentsOfLongTermDebt`	-	USD	Annual
Repayment of revolver and senior notes	`RepaymentsOfLongTermDebt`	-	USD	Annual
Repurchase of common stock for treasury	`PaymentsForRepurchaseOfCommonStock`	$30.00M	USD	Annual
Repurchase of common stock for treasury	`PaymentsForRepurchaseOfCommonStock`	$101.00M	USD	Annual
Repurchase of common stock for treasury	`PaymentsForRepurchaseOfCommonStock`	$23.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-6.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$9.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-25.00M	USD	Annual
Net cash provided by (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-245.00M	USD	Annual
Net cash provided by (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.44B	USD	Annual
Net cash provided by (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-587.00M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-24.00M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$19.00M	USD	Annual
Effect of exchange rate changes on cash, cash equivalents and restricted cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-14.00M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$305.00M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$604.00M	USD	Annual
Net increase in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$1.07B	USD	Annual
Cash, cash equivalents and restricted cash at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.25B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.32B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.34B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.94B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.25B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.32B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.34B	USD	Point-in-time
Cash, cash equivalents and restricted cash at end of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.94B	USD	Point-in-time

Stockholders Equity 39 line items

Line Item	Tag	Value	Unit	Period
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.76B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.46B	USD	Point-in-time
Beginning balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.53B	USD	Point-in-time
Beginning balance, shares issued	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Beginning balance, shares issued	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Beginning balance, Treasury Stock, Shares	`TreasuryStockCommonShares`	7.28M	shares	Point-in-time
Beginning balance, Treasury Stock, Shares	`TreasuryStockCommonShares`	6.44M	shares	Point-in-time
Net income	`ProfitLoss`	$522.00M	USD	Annual
Net income	`ProfitLoss`	$2.07B	USD	Annual
Net income	`ProfitLoss`	$2.30B	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$29.00M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-58.00M	USD	Annual
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-9.00M	USD	Annual
Common stock repurchased	`TreasuryStockValueAcquiredCostMethod`	$30.00M	USD	Annual
Common stock repurchased	`TreasuryStockValueAcquiredCostMethod`	$102.00M	USD	Annual
Common stock repurchased	`TreasuryStockValueAcquiredCostMethod`	$23.00M	USD	Annual
Shares issuedstock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$44.00M	USD	Annual
Shares issuedstock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$18.00M	USD	Annual
Shares issuedstock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$13.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$35.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$31.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$40.00M	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$221.00M	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$169.00M	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$145.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$48.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$54.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$60.00M	USD	Annual
Noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$24.00M	USD	Annual
Noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$30.00M	USD	Annual
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.58B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.76B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.46B	USD	Point-in-time
Ending balances	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.53B	USD	Point-in-time
Ending balance, shares issued	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Ending balance, shares issued	`CommonStockSharesIssued`	134.65M	shares	Point-in-time
Ending balance, Treasury Stock, Shares	`TreasuryStockCommonShares`	7.28M	shares	Point-in-time
Ending balance, Treasury Stock, Shares	`TreasuryStockCommonShares`	6.44M	shares	Point-in-time

Comprehensive Income 30 line items

Line Item	Tag	Value	Unit	Period
Comprehensive income (loss), tax portion attributable to noncontrolling interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$3.00M	USD	Annual
Net income	`ProfitLoss`	$522.00M	USD	Annual
Net income	`ProfitLoss`	$2.07B	USD	Annual
Comprehensive income (loss), tax portion attributable to noncontrolling interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$3.00M	USD	Annual
Comprehensive income (loss), tax portion attributable to noncontrolling interest	`OtherComprehensiveIncomeLossTaxPortionAttributableToNoncontrollingInterest`	$2.00M	USD	Annual
Net income	`ProfitLoss`	$2.30B	USD	Annual
Pension and other post-retirement benefits reserves adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$-29.00M	USD	Annual
Pension and other post-retirement benefits reserves adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$-60.00M	USD	Annual
Pension and other post-retirement benefits reserves adjustment	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax`	$40.00M	USD	Annual
Income tax benefit (provision) on pension and other post-retirement benefits	`OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent`	$-8.00M	USD	Annual
Income tax benefit (provision) on pension and other post-retirement benefits	`OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent`	$3.00M	USD	Annual
Income tax benefit (provision) on pension and other post-retirement benefits	`OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent`	$-16.00M	USD	Annual
Foreign currency translation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax`	$-78.00M	USD	Annual
Foreign currency translation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax`	$32.00M	USD	Annual
Foreign currency translation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax`	$2.00M	USD	Annual
Income tax benefit (provision) on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$17.00M	USD	Annual
Income tax benefit (provision) on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$-7.00M	USD	Annual
Income tax benefit (provision) on foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$12.00M	USD	Annual
Other comprehensive income (loss), net of income taxes	`OtherComprehensiveIncomeLossNetOfTax`	$29.00M	USD	Annual
Other comprehensive income (loss), net of income taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-58.00M	USD	Annual
Other comprehensive income (loss), net of income taxes	`OtherComprehensiveIncomeLossNetOfTax`	$-9.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$513.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.10B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.24B	USD	Annual
Comprehensive income attributable to noncontrolling interests, net of tax of $3, $3 and $2 for 2023, 2022 and 2021, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$45.00M	USD	Annual
Comprehensive income attributable to noncontrolling interests, net of tax of $3, $3 and $2 for 2023, 2022 and 2021, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$56.00M	USD	Annual
Comprehensive income attributable to noncontrolling interests, net of tax of $3, $3 and $2 for 2023, 2022 and 2021, respectively	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$43.00M	USD	Annual
Comprehensive income attributable to Westlake Corporation	`ComprehensiveIncomeNetOfTax`	$470.00M	USD	Annual
Comprehensive income attributable to Westlake Corporation	`ComprehensiveIncomeNetOfTax`	$2.19B	USD	Annual
Comprehensive income attributable to Westlake Corporation	`ComprehensiveIncomeNetOfTax`	$2.04B	USD	Annual

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