10-Q Filing

ALCOA CORP CIK: 1675149 Q3 2021

Filing Information

Form Type	10-Q
Accession Number	`0001564590-21-052672`
Period End Date	20210930
Filing Date	20211028
Fiscal Year	2021
Fiscal Period	Q3
XBRL Instance	aa-10q_20210930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 85 Income Statement 64 Cash Flow Statement 80 Stockholders Equity 37 Comprehensive Income 70

Balance Sheet 85 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents (M)	`CashAndCashEquivalentsAtCarryingValue`	$1.45B	USD	Point-in-time
Cash and cash equivalents (M)	`CashAndCashEquivalentsAtCarryingValue`	$1.61B	USD	Point-in-time
Receivables from customers (I)	`AccountsReceivableNetCurrent`	$471.00M	USD	Point-in-time
Receivables from customers (I)	`AccountsReceivableNetCurrent`	$769.00M	USD	Point-in-time
Other receivables	`OtherReceivablesNetCurrent`	$85.00M	USD	Point-in-time
Other receivables	`OtherReceivablesNetCurrent`	$92.00M	USD	Point-in-time
Inventories (J)	`InventoryNet`	$1.40B	USD	Point-in-time
Inventories (J)	`InventoryNet`	$1.70B	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeAssetsCurrent`	$19.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeAssetsCurrent`	$21.00M	USD	Point-in-time
Assets held for sale (C)	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$648.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$290.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$251.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$4.52B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$4.29B	USD	Point-in-time
Properties, plants, and equipment	`PropertyPlantAndEquipmentGross`	$20.11B	USD	Point-in-time
Properties, plants, and equipment	`PropertyPlantAndEquipmentGross`	$20.52B	USD	Point-in-time
Less: accumulated depreciation, depletion, and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$13.43B	USD	Point-in-time
Less: accumulated depreciation, depletion, and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$13.33B	USD	Point-in-time
Properties, plants, and equipment, net	`PropertyPlantAndEquipmentNet`	$6.68B	USD	Point-in-time
Properties, plants, and equipment, net	`PropertyPlantAndEquipmentNet`	$7.19B	USD	Point-in-time
Investments (H)	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$1.05B	USD	Point-in-time
Investments (H)	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$1.15B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$655.00M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxAssetsNet`	$698.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeAssetsNoncurrent`	$2.00M	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$1.44B	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$1.39B	USD	Point-in-time
Total assets	`Assets`	$14.20B	USD	Point-in-time
Total assets	`Assets`	$14.86B	USD	Point-in-time
Accounts payable, trade	`AccountsPayableCurrent`	$1.48B	USD	Point-in-time
Accounts payable, trade	`AccountsPayableCurrent`	$1.40B	USD	Point-in-time
Accrued compensation and retirement costs	`EmployeeRelatedLiabilitiesCurrent`	$395.00M	USD	Point-in-time
Accrued compensation and retirement costs	`EmployeeRelatedLiabilitiesCurrent`	$378.00M	USD	Point-in-time
Taxes, including income taxes	`TaxesPayableCurrent`	$218.00M	USD	Point-in-time
Taxes, including income taxes	`TaxesPayableCurrent`	$91.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeLiabilitiesCurrent`	$299.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeLiabilitiesCurrent`	$103.00M	USD	Point-in-time
Liabilities held for sale (C)	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$242.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$525.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$551.00M	USD	Point-in-time
Long-term debt due within one year (K & M)	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$2.00M	USD	Point-in-time
Long-term debt due within one year (K & M)	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$1.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.76B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.93B	USD	Point-in-time
Long-term debt, less amount due within one year (K & M)	`LongTermDebtAndCapitalLeaseObligations`	$2.46B	USD	Point-in-time
Long-term debt, less amount due within one year (K & M)	`LongTermDebtAndCapitalLeaseObligations`	$1.72B	USD	Point-in-time
Accrued pension benefits (L)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$1.49B	USD	Point-in-time
Accrued pension benefits (L)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$633.00M	USD	Point-in-time
Accrued other postretirement benefits (L)	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$652.00M	USD	Point-in-time
Accrued other postretirement benefits (L)	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$744.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$554.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$625.00M	USD	Point-in-time
Environmental remediation (P)	`AccruedEnvironmentalLossContingenciesNoncurrent`	$260.00M	USD	Point-in-time
Environmental remediation (P)	`AccruedEnvironmentalLossContingenciesNoncurrent`	$293.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeLiabilitiesNoncurrent`	$742.00M	USD	Point-in-time
Fair value of derivative instruments (M)	`DerivativeLiabilitiesNoncurrent`	$1.28B	USD	Point-in-time
Noncurrent income taxes	`AccruedIncomeTaxesNoncurrent`	$182.00M	USD	Point-in-time
Noncurrent income taxes	`AccruedIncomeTaxesNoncurrent`	$209.00M	USD	Point-in-time
Other noncurrent liabilities and deferred credits	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$524.00M	USD	Point-in-time
Other noncurrent liabilities and deferred credits	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$515.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$9.84B	USD	Point-in-time
Total liabilities	`Liabilities`	$8.74B	USD	Point-in-time
CONTINGENCIES AND COMMITMENTS (P)	`CommitmentsAndContingencies`	-	USD	Point-in-time
CONTINGENCIES AND COMMITMENTS (P)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock	`CommonStockValue`	$2.00M	USD	Point-in-time
Common stock	`CommonStockValue`	$2.00M	USD	Point-in-time
Additional capital	`AdditionalPaidInCapitalCommonStock`	$9.66B	USD	Point-in-time
Additional capital	`AdditionalPaidInCapitalCommonStock`	$9.71B	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$-725.00M	USD	Point-in-time
Retained earnings (deficit)	`RetainedEarningsAccumulatedDeficit`	$96.00M	USD	Point-in-time
Accumulated other comprehensive loss (G)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.93B	USD	Point-in-time
Accumulated other comprehensive loss (G)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.63B	USD	Point-in-time
Total Alcoa Corporation shareholders equity	`StockholdersEquity`	$3.31B	USD	Point-in-time
Total Alcoa Corporation shareholders equity	`StockholdersEquity`	$3.88B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$1.71B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$1.58B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.42B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.46B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.89B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$14.20B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$14.86B	USD	Point-in-time

Income Statement 64 line items

Line Item	Tag	Value	Unit	Period
Sales (E)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.37B	USD	1 Quarter
Sales (E)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$3.11B	USD	1 Quarter
Sales (E)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$8.81B	USD	3 Qtrs
Sales (E)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$6.89B	USD	3 Qtrs
Cost of goods sold (exclusive of expenses below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$2.04B	USD	1 Quarter
Cost of goods sold (exclusive of expenses below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$6.77B	USD	3 Qtrs
Cost of goods sold (exclusive of expenses below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$2.32B	USD	1 Quarter
Cost of goods sold (exclusive of expenses below)	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$6.00B	USD	3 Qtrs
Selling, general administrative, and other expenses	`SellingGeneralAndAdministrativeExpense`	$159.00M	USD	3 Qtrs
Selling, general administrative, and other expenses	`SellingGeneralAndAdministrativeExpense`	$47.00M	USD	1 Quarter
Selling, general administrative, and other expenses	`SellingGeneralAndAdministrativeExpense`	$151.00M	USD	3 Qtrs
Selling, general administrative, and other expenses	`SellingGeneralAndAdministrativeExpense`	$53.00M	USD	1 Quarter
Research and development expenses	`ResearchAndDevelopmentExpense`	$18.00M	USD	3 Qtrs
Research and development expenses	`ResearchAndDevelopmentExpense`	$6.00M	USD	1 Quarter
Research and development expenses	`ResearchAndDevelopmentExpense`	$21.00M	USD	3 Qtrs
Research and development expenses	`ResearchAndDevelopmentExpense`	$8.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$161.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$156.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$499.00M	USD	3 Qtrs
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$483.00M	USD	3 Qtrs
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$33.00M	USD	1 Quarter
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$73.00M	USD	3 Qtrs
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$5.00M	USD	1 Quarter
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$44.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$103.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$167.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$41.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$58.00M	USD	1 Quarter
Other (income) expenses, net (Q)	`NonoperatingIncomeExpense`	$147.00M	USD	3 Qtrs
Other (income) expenses, net (Q)	`NonoperatingIncomeExpense`	$18.00M	USD	1 Quarter
Other (income) expenses, net (Q)	`NonoperatingIncomeExpense`	$-45.00M	USD	1 Quarter
Other (income) expenses, net (Q)	`NonoperatingIncomeExpense`	$36.00M	USD	3 Qtrs
Total costs and expenses	`CostsAndOperatingExpensesAndNonoperatingIncomeExpenses`	$2.61B	USD	1 Quarter
Total costs and expenses	`CostsAndOperatingExpensesAndNonoperatingIncomeExpenses`	$7.54B	USD	3 Qtrs
Total costs and expenses	`CostsAndOperatingExpensesAndNonoperatingIncomeExpenses`	$2.34B	USD	1 Quarter
Total costs and expenses	`CostsAndOperatingExpensesAndNonoperatingIncomeExpenses`	$6.76B	USD	3 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$22.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$136.00M	USD	3 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.27B	USD	3 Qtrs
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$497.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$127.00M	USD	1 Quarter
Provision for income taxes	`IncomeTaxExpenseBenefit`	$167.00M	USD	3 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$331.00M	USD	3 Qtrs
Provision for income taxes	`IncomeTaxExpenseBenefit`	$42.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$939.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-20.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-31.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$370.00M	USD	1 Quarter
Less: Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$29.00M	USD	1 Quarter
Less: Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$135.00M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$118.00M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$33.00M	USD	1 Quarter
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$-49.00M	USD	1 Quarter
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$821.00M	USD	3 Qtrs
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$-166.00M	USD	3 Qtrs
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$337.00M	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$1.80	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$-0.26	USD	1 Quarter
Basic	`EarningsPerShareBasic`	$4.40	USD	3 Qtrs
Basic	`EarningsPerShareBasic`	$-0.89	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$1.76	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$-0.26	USD	1 Quarter
Diluted	`EarningsPerShareDiluted`	$4.32	USD	3 Qtrs
Diluted	`EarningsPerShareDiluted`	$-0.89	USD	3 Qtrs

Cash Flow Statement 80 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$939.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-20.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-31.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$370.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$161.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$156.00M	USD	1 Quarter
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$499.00M	USD	3 Qtrs
Provision for depreciation, depletion, and amortization	`DepreciationDepletionAndAmortization`	$483.00M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$61.00M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-12.00M	USD	3 Qtrs
Equity earnings, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$84.00M	USD	3 Qtrs
Equity earnings, net of dividends	`IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions`	$-19.00M	USD	3 Qtrs
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$33.00M	USD	1 Quarter
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$73.00M	USD	3 Qtrs
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$5.00M	USD	1 Quarter
Restructuring and other charges, net (D)	`RestructuringAndOtherCharges`	$44.00M	USD	3 Qtrs
Net gain from investing activities asset sales (Q)	`GainLossOnDispositionOfAssets1`	$132.00M	USD	3 Qtrs
Net gain from investing activities asset sales (Q)	`GainLossOnDispositionOfAssets1`	$174.00M	USD	3 Qtrs
Net periodic pension benefit cost (L)	`DefinedBenefitPensionPlansNetPeriodicBenefitCost`	$36.00M	USD	3 Qtrs
Net periodic pension benefit cost (L)	`DefinedBenefitPensionPlansNetPeriodicBenefitCost`	$103.00M	USD	3 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$24.00M	USD	3 Qtrs
Stock-based compensation	`ShareBasedCompensation`	$26.00M	USD	3 Qtrs
Provision for bad debt expense	`ProvisionForDoubtfulAccounts`	$1.00M	USD	3 Qtrs
Provision for bad debt expense	`ProvisionForDoubtfulAccounts`	$2.00M	USD	3 Qtrs
Premium paid on early redemption of debt	`GainsLossesOnExtinguishmentOfDebt`	$-43.00M	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$-11.00M	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$-44.00M	USD	3 Qtrs
(Increase) Decrease in receivables	`IncreaseDecreaseInReceivables`	$408.00M	USD	3 Qtrs
(Increase) Decrease in receivables	`IncreaseDecreaseInReceivables`	$-26.00M	USD	3 Qtrs
(Increase) Decrease in inventories	`IncreaseDecreaseInInventories`	$-221.00M	USD	3 Qtrs
(Increase) Decrease in inventories	`IncreaseDecreaseInInventories`	$373.00M	USD	3 Qtrs
Decrease in prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-21.00M	USD	3 Qtrs
Decrease in prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-39.00M	USD	3 Qtrs
Increase (Decrease) in accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$153.00M	USD	3 Qtrs
Increase (Decrease) in accounts payable, trade	`IncreaseDecreaseInAccountsPayableTrade`	$-87.00M	USD	3 Qtrs
(Decrease) in accrued expenses	`IncreaseDecreaseInAccruedLiabilities`	$-166.00M	USD	3 Qtrs
Increase in taxes, including income taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$95.00M	USD	3 Qtrs
Increase in taxes, including income taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$143.00M	USD	3 Qtrs
Pension contributions (L)	`PensionContributions`	$575.00M	USD	3 Qtrs
Pension contributions (L)	`PensionContributions`	$83.00M	USD	3 Qtrs
(Increase) in noncurrent assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$64.00M	USD	3 Qtrs
(Increase) in noncurrent assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$47.00M	USD	3 Qtrs
(Decrease) in noncurrent liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-76.00M	USD	3 Qtrs
(Decrease) in noncurrent liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-83.00M	USD	3 Qtrs
CASH PROVIDED FROM OPERATIONS	`NetCashProvidedByUsedInOperatingActivities`	$355.00M	USD	3 Qtrs
CASH PROVIDED FROM OPERATIONS	`NetCashProvidedByUsedInOperatingActivities`	$356.00M	USD	3 Qtrs
Additions to debt (original maturities greater than three months)	`AdditionsToLongTermDebtIssuedLessIssuanceDiscount`	$739.00M	USD	3 Qtrs
Additions to debt (original maturities greater than three months)	`AdditionsToLongTermDebtIssuedLessIssuanceDiscount`	$495.00M	USD	3 Qtrs
Payments on debt (original maturities greater than three months)	`RepaymentsOfLongTermDebt`	$1.29B	USD	3 Qtrs
Proceeds from the exercise of employee stock options	`ProceedsFromStockOptionsExercised`	$19.00M	USD	3 Qtrs
Financial contributions for the divestiture of businesses (D)	`PaymentsForFinancialContributionsForTheDivestitureOfBusinesses`	$30.00M	USD	3 Qtrs
Financial contributions for the divestiture of businesses (D)	`PaymentsForFinancialContributionsForTheDivestitureOfBusinesses`	$14.00M	USD	3 Qtrs
Contributions from noncontrolling interest	`ProceedsFromMinorityShareholders`	$8.00M	USD	3 Qtrs
Contributions from noncontrolling interest	`ProceedsFromMinorityShareholders`	$24.00M	USD	3 Qtrs
Distributions to noncontrolling interest	`PaymentsOfDividendsMinorityInterest`	$152.00M	USD	3 Qtrs
Distributions to noncontrolling interest	`PaymentsOfDividendsMinorityInterest`	$177.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-4.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.00M	USD	3 Qtrs
CASH (USED FOR) PROVIDED FROM FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$-966.00M	USD	3 Qtrs
CASH (USED FOR) PROVIDED FROM FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$577.00M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$242.00M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$237.00M	USD	3 Qtrs
Proceeds from the sale of assets	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$715.00M	USD	3 Qtrs
Proceeds from the sale of assets	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$198.00M	USD	3 Qtrs
Additions to investments	`PaymentsToAcquireInvestments`	$7.00M	USD	3 Qtrs
Additions to investments	`PaymentsToAcquireInvestments`	$6.00M	USD	3 Qtrs
CASH PROVIDED FROM (USED FOR) INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$471.00M	USD	3 Qtrs
CASH PROVIDED FROM (USED FOR) INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-50.00M	USD	3 Qtrs
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-11.00M	USD	3 Qtrs
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS AND RESTRICTED CASH	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-27.00M	USD	3 Qtrs
Net change in cash and cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-151.00M	USD	3 Qtrs
Net change in cash and cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$856.00M	USD	3 Qtrs
Cash and cash equivalents and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$883.00M	USD	Point-in-time
Cash and cash equivalents and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.46B	USD	Point-in-time
Cash and cash equivalents and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.61B	USD	Point-in-time
Cash and cash equivalents and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.74B	USD	Point-in-time
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$883.00M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.46B	USD	Point-in-time
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.61B	USD	Point-in-time
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.74B	USD	Point-in-time

Stockholders Equity 37 line items

Line Item	Tag	Value	Unit	Period
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.42B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.46B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.32B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.89B	USD	Point-in-time
Net income (loss)	`ProfitLoss`	$939.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-20.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-31.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$370.00M	USD	1 Quarter
Other comprehensive (loss) income (G)	`OtherComprehensiveIncomeLossNetOfTax`	$-370.00M	USD	3 Qtrs
Other comprehensive (loss) income (G)	`OtherComprehensiveIncomeLossNetOfTax`	$-309.00M	USD	1 Quarter
Other comprehensive (loss) income (G)	`OtherComprehensiveIncomeLossNetOfTax`	$-729.00M	USD	3 Qtrs
Other comprehensive (loss) income (G)	`OtherComprehensiveIncomeLossNetOfTax`	$-253.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$7.00M	USD	1 Quarter
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$26.00M	USD	3 Qtrs
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$24.00M	USD	3 Qtrs
Common stock issued: compensation plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$19.00M	USD	3 Qtrs
Common stock issued: compensation plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$5.00M	USD	1 Quarter
Contributions	`MinorityInterestIncreaseDecreaseFromCapitalContributionFromNoncontrollingInterestHolders`	$8.00M	USD	1 Quarter
Contributions	`MinorityInterestIncreaseDecreaseFromCapitalContributionFromNoncontrollingInterestHolders`	$24.00M	USD	3 Qtrs
Contributions	`MinorityInterestIncreaseDecreaseFromCapitalContributionFromNoncontrollingInterestHolders`	$8.00M	USD	3 Qtrs
Contributions	`MinorityInterestIncreaseDecreaseFromCapitalContributionFromNoncontrollingInterestHolders`	$8.00M	USD	1 Quarter
Distributions	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$177.00M	USD	3 Qtrs
Distributions	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$46.00M	USD	1 Quarter
Distributions	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$40.00M	USD	1 Quarter
Distributions	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$152.00M	USD	3 Qtrs
Other	`StockholdersEquityOther`	$3.00M	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-1.00M	USD	1 Quarter
Other	`StockholdersEquityOther`	$1.00M	USD	1 Quarter
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.42B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.46B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.02B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.32B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.89B	USD	Point-in-time

Comprehensive Income 70 line items

Line Item	Tag	Value	Unit	Period
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$-49.00M	USD	1 Quarter
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$821.00M	USD	3 Qtrs
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$-166.00M	USD	3 Qtrs
NET INCOME (LOSS) ATTRIBUTABLE TO ALCOA CORPORATION	`NetIncomeLoss`	$337.00M	USD	1 Quarter
Net income (loss), Noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$29.00M	USD	1 Quarter
Net income (loss), Noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$135.00M	USD	3 Qtrs
Net income (loss), Noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$118.00M	USD	3 Qtrs
Net income (loss), Noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$33.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$939.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$-20.00M	USD	1 Quarter
Net income (loss)	`ProfitLoss`	$-31.00M	USD	3 Qtrs
Net income (loss)	`ProfitLoss`	$370.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Alcoa Corporation	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent`	$-121.00M	USD	3 Qtrs
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Alcoa Corporation	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent`	$72.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Alcoa Corporation	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent`	$456.00M	USD	3 Qtrs
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Alcoa Corporation	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent`	$-32.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Noncontrolling interest	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$16.00M	USD	3 Qtrs
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Noncontrolling interest	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-3.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Noncontrolling interest	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits, Noncontrolling interest	`OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-1.00M	USD	3 Qtrs
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-122.00M	USD	3 Qtrs
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$84.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-35.00M	USD	1 Quarter
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$472.00M	USD	3 Qtrs
Foreign currency translation adjustments, Alcoa Corporation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent`	$-202.00M	USD	1 Quarter
Foreign currency translation adjustments, Alcoa Corporation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent`	$5.00M	USD	1 Quarter
Foreign currency translation adjustments, Alcoa Corporation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent`	$-523.00M	USD	3 Qtrs
Foreign currency translation adjustments, Alcoa Corporation	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent`	$-174.00M	USD	3 Qtrs
Foreign currency translation adjustments, Noncontrolling interest	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-78.00M	USD	1 Quarter
Foreign currency translation adjustments, Noncontrolling interest	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$17.00M	USD	1 Quarter
Foreign currency translation adjustments, Noncontrolling interest	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-87.00M	USD	3 Qtrs
Foreign currency translation adjustments, Noncontrolling interest	`OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest`	$-134.00M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-657.00M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-261.00M	USD	3 Qtrs
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-280.00M	USD	1 Quarter
Foreign currency translation adjustments	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$22.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges, Alcoa Corporation	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$71.00M	USD	3 Qtrs
Net change in unrecognized gains/losses on cash flow hedges, Alcoa Corporation	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$-581.00M	USD	3 Qtrs
Net change in unrecognized gains/losses on cash flow hedges, Alcoa Corporation	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$-111.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges, Alcoa Corporation	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$-240.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges, Noncontrolling interest	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxNoncontrollingInterest`	$-2.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges, Noncontrolling interest	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxNoncontrollingInterest`	$-21.00M	USD	3 Qtrs
Net change in unrecognized gains/losses on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-581.00M	USD	3 Qtrs
Net change in unrecognized gains/losses on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-240.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-113.00M	USD	1 Quarter
Net change in unrecognized gains/losses on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$50.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax, Alcoa Corporation	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-573.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax, Alcoa Corporation	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-241.00M	USD	1 Quarter
Total Other comprehensive (loss) income, net of tax, Alcoa Corporation	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-299.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax, Alcoa Corporation	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-267.00M	USD	1 Quarter
Total Other comprehensive (loss) income, net of tax, Noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$-68.00M	USD	1 Quarter
Total Other comprehensive (loss) income, net of tax, Noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$14.00M	USD	1 Quarter
Total Other comprehensive (loss) income, net of tax, Noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$-71.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax, Noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$-156.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-370.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-309.00M	USD	1 Quarter
Total Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-729.00M	USD	3 Qtrs
Total Other comprehensive (loss) income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-253.00M	USD	1 Quarter
Comprehensive income (loss), Alcoa Corporation	`ComprehensiveIncomeNetOfTax`	$522.00M	USD	3 Qtrs
Comprehensive income (loss), Alcoa Corporation	`ComprehensiveIncomeNetOfTax`	$-739.00M	USD	3 Qtrs
Comprehensive income (loss), Alcoa Corporation	`ComprehensiveIncomeNetOfTax`	$-316.00M	USD	1 Quarter
Comprehensive income (loss), Alcoa Corporation	`ComprehensiveIncomeNetOfTax`	$96.00M	USD	1 Quarter
Comprehensive income (loss), Noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-35.00M	USD	1 Quarter
Comprehensive income (loss), Noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$47.00M	USD	3 Qtrs
Comprehensive income (loss), Noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-21.00M	USD	3 Qtrs
Comprehensive income (loss), Noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$43.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-273.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-760.00M	USD	3 Qtrs
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$61.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$569.00M	USD	3 Qtrs

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