10-Q Filing

ALASKA AIR GROUP, INC. CIK: 766421 Q3 2019

Filing Information

Form Type	10-Q
Accession Number	`0000766421-19-000054`
Period End Date	20190930
Filing Date	20191107
Fiscal Year	2019
Fiscal Period	Q3
XBRL Instance	alk10-q32019_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 111 Income Statement 120 Cash Flow Statement 82 Stockholders Equity 65 Comprehensive Income 64

Balance Sheet 111 line items

Line Item	Tag	Value	Unit	Period
Preferred Stock, par value (usd per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred Stock, par value (usd per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$105.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$237.00M	USD	Point-in-time
Preferred stock, shares authorized (shares)	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$174.00M	USD	Point-in-time
Preferred stock, shares authorized (shares)	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Preferred stock, shares issued (shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued (shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Marketable securities	`MarketableSecuritiesCurrent`	$1.38B	USD	Point-in-time
Marketable securities	`MarketableSecuritiesCurrent`	$1.13B	USD	Point-in-time
Total cash and marketable securities	`CashCashEquivalentsAndShortTermInvestments`	$1.62B	USD	Point-in-time
Preferred stock, shares outstanding (shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Total cash and marketable securities	`CashCashEquivalentsAndShortTermInvestments`	$1.24B	USD	Point-in-time
Preferred stock, shares outstanding (shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Receivables - net	`ReceivablesNetCurrent`	$377.00M	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (usd per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Receivables - net	`ReceivablesNetCurrent`	$366.00M	USD	Point-in-time
Common stock, shares authorized (shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Inventories and supplies - net	`InventoryNet`	$60.00M	USD	Point-in-time
Inventories and supplies - net	`InventoryNet`	$63.00M	USD	Point-in-time
Common stock, shares authorized (shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, shares issued (shares)	`CommonStockSharesIssued`	130.81M	shares	Point-in-time
Common stock, shares issued (shares)	`CommonStockSharesIssued`	131.77M	shares	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$143.00M	USD	Point-in-time
Prepaid expenses and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$125.00M	USD	Point-in-time
Common stock, shares outstanding (shares)	`CommonStockSharesOutstanding`	123.19M	shares	Point-in-time
Total Current Assets	`AssetsCurrent`	$2.20B	USD	Point-in-time
Common stock, shares outstanding (shares)	`CommonStockSharesOutstanding`	123.28M	shares	Point-in-time
Total Current Assets	`AssetsCurrent`	$1.79B	USD	Point-in-time
Treasury Stock, Shares (shares)	`TreasuryStockShares`	8.49M	shares	Point-in-time
Treasury Stock, Shares (shares)	`TreasuryStockShares`	7.62M	shares	Point-in-time
Aircraft and other flight equipment	`FlightEquipmentGross`	$8.49B	USD	Point-in-time
Aircraft and other flight equipment	`FlightEquipmentGross`	$8.22B	USD	Point-in-time
Other property and equipment	`PropertyPlantAndEquipmentOther`	$1.36B	USD	Point-in-time
Other property and equipment	`PropertyPlantAndEquipmentOther`	$1.27B	USD	Point-in-time
Deposits for future flight equipment	`DepositsOnFlightEquipment`	$439.00M	USD	Point-in-time
Deposits for future flight equipment	`DepositsOnFlightEquipment`	$463.00M	USD	Point-in-time
Property and Equipment Total	`PropertyPlantAndEquipmentGross`	$10.02B	USD	Point-in-time
Property and Equipment Total	`PropertyPlantAndEquipmentGross`	$10.23B	USD	Point-in-time
Less accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$3.39B	USD	Point-in-time
Less accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$3.24B	USD	Point-in-time
Total Property and Equipment - Net	`PropertyPlantAndEquipmentNet`	$6.83B	USD	Point-in-time
Total Property and Equipment - Net	`PropertyPlantAndEquipmentNet`	$6.78B	USD	Point-in-time
Operating Lease, Right-of-Use Asset	`OperatingLeaseRightOfUseAsset`	$1.65B	USD	Point-in-time
Operating Lease, Right-of-Use Asset	`OperatingLeaseRightOfUseAsset`	-	USD	Point-in-time
Goodwill	`Goodwill`	$1.94B	USD	Point-in-time
Goodwill	`Goodwill`	$1.94B	USD	Point-in-time
Intangible assets - net	`IntangibleAssetsNetExcludingGoodwill`	$123.00M	USD	Point-in-time
Intangible assets - net	`IntangibleAssetsNetExcludingGoodwill`	$127.00M	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$274.00M	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$234.00M	USD	Point-in-time
Other Assets	`OtherAssets`	$2.34B	USD	Point-in-time
Other Assets	`OtherAssets`	$3.95B	USD	Point-in-time
Total Assets	`Assets`	$10.91B	USD	Point-in-time
Total Assets	`Assets`	$12.98B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$120.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$132.00M	USD	Point-in-time
Accrued wages, vacation and payroll taxes	`EmployeeRelatedLiabilitiesCurrent`	$415.00M	USD	Point-in-time
Accrued wages, vacation and payroll taxes	`EmployeeRelatedLiabilitiesCurrent`	$391.00M	USD	Point-in-time
Air traffic liability	`DeferredAirTrafficRevenue`	$788.00M	USD	Point-in-time
Air traffic liability	`DeferredAirTrafficRevenue`	$1.03B	USD	Point-in-time
Other accrued liabilities	`AccruedLiabilitiesCurrent`	$476.00M	USD	Point-in-time
Other accrued liabilities	`AccruedLiabilitiesCurrent`	$416.00M	USD	Point-in-time
Deferred revenue, current	`DeferredRevenueCurrent`	$794.00M	USD	Point-in-time
Deferred revenue, current	`DeferredRevenueCurrent`	$705.00M	USD	Point-in-time
Operating Lease, Liability, Current	`OperatingLeaseLiabilityCurrent`	$268.00M	USD	Point-in-time
Operating Lease, Liability, Current	`OperatingLeaseLiabilityCurrent`	-	USD	Point-in-time
Current portion of long-term debt	`DebtCurrent`	$486.00M	USD	Point-in-time
Current portion of long-term debt	`DebtCurrent`	$265.00M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$2.94B	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$3.35B	USD	Point-in-time
Long-Term Debt, Net of Current Portion	`LongTermDebtNoncurrent`	$1.44B	USD	Point-in-time
Long-Term Debt, Net of Current Portion	`LongTermDebtNoncurrent`	$1.62B	USD	Point-in-time
Operating Lease, Liability, Noncurrent	`OperatingLeaseLiabilityNoncurrent`	$1.38B	USD	Point-in-time
Operating Lease, Liability, Noncurrent	`OperatingLeaseLiabilityNoncurrent`	-	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$708.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$512.00M	USD	Point-in-time
Deferred revenue, noncurrent	`DeferredRevenueNoncurrent`	$1.17B	USD	Point-in-time
Deferred revenue, noncurrent	`DeferredRevenueNoncurrent`	$1.18B	USD	Point-in-time
Obligation for pension and postretirement medical benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$467.00M	USD	Point-in-time
Obligation for pension and postretirement medical benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$503.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$418.00M	USD	Point-in-time
Other liabilities	`OtherLiabilitiesNoncurrent`	$213.00M	USD	Point-in-time
Other Liabilities and Credits Totals	`LiabilitiesNoncurrent`	$2.60B	USD	Point-in-time
Other Liabilities and Credits Totals	`LiabilitiesNoncurrent`	$3.94B	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, Authorized: 5,000,000 shares, none issued or outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $0.01 par value, Authorized: 5,000,000 shares, none issued or outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $0.01 par value, Authorized: 400,000,000 shares, Issued: 2019 - 131,770,976 shares; 2018 - 130,813,476 shares, Outstanding: 2019 - 123,277,911 shares; 2018 - 123,194,430 shares	`CommonStockValue`	$1.00M	USD	Point-in-time
Common stock, $0.01 par value, Authorized: 400,000,000 shares, Issued: 2019 - 131,770,976 shares; 2018 - 130,813,476 shares, Outstanding: 2019 - 123,277,911 shares; 2018 - 123,194,430 shares	`CommonStockValue`	$1.00M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$297.00M	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$232.00M	USD	Point-in-time
Treasury stock (common), at cost: 2019 - 8,493,065 shares; 2018 - 7,619,046 shares	`TreasuryStockValue`	$568.00M	USD	Point-in-time
Treasury stock (common), at cost: 2019 - 8,493,065 shares; 2018 - 7,619,046 shares	`TreasuryStockValue`	$621.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-448.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-421.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$5.00B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.53B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.44B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.79B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.75B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.59B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.97B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$4.25B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.46B	USD	Point-in-time
Total Shareholders' Equity	`StockholdersEquity`	$3.75B	USD	Point-in-time
Total Liabilities and Shareholders' Equity	`LiabilitiesAndStockholdersEquity`	$10.91B	USD	Point-in-time
Total Liabilities and Shareholders' Equity	`LiabilitiesAndStockholdersEquity`	$12.98B	USD	Point-in-time

Income Statement 120 line items

Line Item	Tag	Value	Unit	Period
Total Operating Revenues	`Revenues`	$6.55B	USD	3 Qtrs
Total Operating Revenues	`Revenues`	$2.21B	USD	1 Quarter
Total Operating Revenues	`Revenues`	$2.39B	USD	1 Quarter
Total Operating Revenues	`Revenues`	$6.20B	USD	3 Qtrs
Wages and benefits	`LaborAndRelatedExpense`	$608.00M	USD	1 Quarter
Wages and benefits	`LaborAndRelatedExpense`	$549.00M	USD	1 Quarter
Wages and benefits	`LaborAndRelatedExpense`	$1.73B	USD	3 Qtrs
Wages and benefits	`LaborAndRelatedExpense`	$1.63B	USD	3 Qtrs
Variable incentive pay	`OtherLaborRelatedExpenses`	$104.00M	USD	3 Qtrs
Variable incentive pay	`OtherLaborRelatedExpenses`	$125.00M	USD	3 Qtrs
Variable incentive pay	`OtherLaborRelatedExpenses`	$46.00M	USD	1 Quarter
Variable incentive pay	`OtherLaborRelatedExpenses`	$27.00M	USD	1 Quarter
Aircraft fuel, including hedging gains and losses	`FuelCosts`	$1.40B	USD	3 Qtrs
Aircraft fuel, including hedging gains and losses	`FuelCosts`	$513.00M	USD	1 Quarter
Aircraft fuel, including hedging gains and losses	`FuelCosts`	$486.00M	USD	1 Quarter
Aircraft fuel, including hedging gains and losses	`FuelCosts`	$1.41B	USD	3 Qtrs
Aircraft maintenance	`AircraftMaintenanceMaterialsAndRepairs`	$107.00M	USD	1 Quarter
Aircraft maintenance	`AircraftMaintenanceMaterialsAndRepairs`	$341.00M	USD	3 Qtrs
Aircraft maintenance	`AircraftMaintenanceMaterialsAndRepairs`	$320.00M	USD	3 Qtrs
Aircraft maintenance	`AircraftMaintenanceMaterialsAndRepairs`	$106.00M	USD	1 Quarter
Aircraft rent	`AircraftRental`	$82.00M	USD	1 Quarter
Aircraft rent	`AircraftRental`	$82.00M	USD	1 Quarter
Aircraft rent	`AircraftRental`	$247.00M	USD	3 Qtrs
Aircraft rent	`AircraftRental`	$233.00M	USD	3 Qtrs
Landing fees and other rentals	`LandingFeesAndOtherRentals`	$135.00M	USD	1 Quarter
Landing fees and other rentals	`LandingFeesAndOtherRentals`	$371.00M	USD	3 Qtrs
Landing fees and other rentals	`LandingFeesAndOtherRentals`	$388.00M	USD	3 Qtrs
Landing fees and other rentals	`LandingFeesAndOtherRentals`	$143.00M	USD	1 Quarter
Contracted services	`ProfessionalAndContractServicesExpense`	$70.00M	USD	1 Quarter
Contracted services	`ProfessionalAndContractServicesExpense`	$227.00M	USD	3 Qtrs
Contracted services	`ProfessionalAndContractServicesExpense`	$214.00M	USD	3 Qtrs
Contracted services	`ProfessionalAndContractServicesExpense`	$72.00M	USD	1 Quarter
Selling expenses	`SellingExpense`	$245.00M	USD	3 Qtrs
Selling expenses	`SellingExpense`	$79.00M	USD	1 Quarter
Selling expenses	`SellingExpense`	$236.00M	USD	3 Qtrs
Selling expenses	`SellingExpense`	$77.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$99.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$317.00M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$106.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$290.00M	USD	3 Qtrs
Food and beverage service	`CostOfServicesCatering`	$57.00M	USD	1 Quarter
Food and beverage service	`CostOfServicesCatering`	$158.00M	USD	3 Qtrs
Food and beverage service	`CostOfServicesCatering`	$53.00M	USD	1 Quarter
Food and beverage service	`CostOfServicesCatering`	$159.00M	USD	3 Qtrs
Third-party regional carrier expense	`RegionalCarrierExpense`	$125.00M	USD	3 Qtrs
Third-party regional carrier expense	`RegionalCarrierExpense`	$114.00M	USD	3 Qtrs
Third-party regional carrier expense	`RegionalCarrierExpense`	$42.00M	USD	1 Quarter
Third-party regional carrier expense	`RegionalCarrierExpense`	$38.00M	USD	1 Quarter
Other	`OtherCostAndExpenseOperating`	$411.00M	USD	3 Qtrs
Other	`OtherCostAndExpenseOperating`	$423.00M	USD	3 Qtrs
Other	`OtherCostAndExpenseOperating`	$141.00M	USD	1 Quarter
Other	`OtherCostAndExpenseOperating`	$137.00M	USD	1 Quarter
Special items - merger-related costs	`BusinessCombinationAcquisitionRelatedCosts`	$5.00M	USD	1 Quarter
Special items - merger-related costs	`BusinessCombinationAcquisitionRelatedCosts`	$39.00M	USD	3 Qtrs
Special items - merger-related costs	`BusinessCombinationAcquisitionRelatedCosts`	$22.00M	USD	1 Quarter
Special items - merger-related costs	`BusinessCombinationAcquisitionRelatedCosts`	$67.00M	USD	3 Qtrs
Special itemsother	`Specialitemsother`	-	USD	1 Quarter
Special itemsother	`Specialitemsother`	-	USD	3 Qtrs
Special itemsother	`Specialitemsother`	-	USD	1 Quarter
Special itemsother	`Specialitemsother`	$25.00M	USD	3 Qtrs
Total Operating Expenses	`OperatingExpenses`	$5.60B	USD	3 Qtrs
Total Operating Expenses	`OperatingExpenses`	$5.74B	USD	3 Qtrs
Total Operating Expenses	`OperatingExpenses`	$1.92B	USD	1 Quarter
Total Operating Expenses	`OperatingExpenses`	$1.97B	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$422.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$297.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$811.00M	USD	3 Qtrs
Operating Income	`OperatingIncomeLoss`	$597.00M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$31.00M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$11.00M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$29.00M	USD	3 Qtrs
Interest income	`InvestmentIncomeInterest`	$11.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$22.00M	USD	1 Quarter
Interest expense	`InterestExpense`	$60.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$71.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$18.00M	USD	1 Quarter
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$14.00M	USD	3 Qtrs
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$4.00M	USD	1 Quarter
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$5.00M	USD	1 Quarter
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$11.00M	USD	3 Qtrs
Othernet	`OtherNonoperatingIncomeExpense`	$-7.00M	USD	1 Quarter
Othernet	`OtherNonoperatingIncomeExpense`	$-20.00M	USD	3 Qtrs
Othernet	`OtherNonoperatingIncomeExpense`	$-3.00M	USD	1 Quarter
Othernet	`OtherNonoperatingIncomeExpense`	$-20.00M	USD	3 Qtrs
Nonoperating Income (Expense) Total	`NonoperatingIncomeExpense`	$-13.00M	USD	1 Quarter
Nonoperating Income (Expense) Total	`NonoperatingIncomeExpense`	$-48.00M	USD	3 Qtrs
Nonoperating Income (Expense) Total	`NonoperatingIncomeExpense`	$-6.00M	USD	1 Quarter
Nonoperating Income (Expense) Total	`NonoperatingIncomeExpense`	$-38.00M	USD	3 Qtrs
Income Before Income Tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$284.00M	USD	1 Quarter
Income Before Income Tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$773.00M	USD	3 Qtrs
Income Before Income Tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$549.00M	USD	3 Qtrs
Income Before Income Tax	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$416.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$67.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$94.00M	USD	1 Quarter
Income tax expense	`IncomeTaxExpenseBenefit`	$135.00M	USD	3 Qtrs
Income tax expense	`IncomeTaxExpenseBenefit`	$185.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$414.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$217.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$262.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$193.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$588.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$322.00M	USD	1 Quarter
Basic Earnings Per Share (usd per share)	`EarningsPerShareBasic`	$1.76	USD	1 Quarter
Basic Earnings Per Share (usd per share)	`EarningsPerShareBasic`	$3.36	USD	3 Qtrs
Basic Earnings Per Share (usd per share)	`EarningsPerShareBasic`	$4.76	USD	3 Qtrs
Basic Earnings Per Share (usd per share)	`EarningsPerShareBasic`	$2.61	USD	1 Quarter
Diluted Earnings Per Share (usd per share)	`EarningsPerShareDiluted`	$1.75	USD	1 Quarter
Diluted Earnings Per Share (usd per share)	`EarningsPerShareDiluted`	$2.60	USD	1 Quarter
Diluted Earnings Per Share (usd per share)	`EarningsPerShareDiluted`	$4.74	USD	3 Qtrs
Diluted Earnings Per Share (usd per share)	`EarningsPerShareDiluted`	$3.34	USD	3 Qtrs
Basic shares (shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	123.33M	shares	3 Qtrs
Basic shares (shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	123.22M	shares	3 Qtrs
Basic shares (shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	123.28M	shares	1 Quarter
Basic shares (shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	123.22M	shares	1 Quarter
Diluted shares (shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	124.05M	shares	3 Qtrs
Diluted shares (shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	124.07M	shares	1 Quarter
Diluted shares (shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	123.80M	shares	3 Qtrs
Diluted shares (shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	123.86M	shares	1 Quarter

Cash Flow Statement 82 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$105.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$237.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$174.00M	USD	Point-in-time
Restricted cash included in Prepaid expenses and other current assets	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$12.00M	USD	Point-in-time
Restricted cash included in Prepaid expenses and other current assets	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$10.00M	USD	Point-in-time
Total cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$114.00M	USD	Point-in-time
Total cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$184.00M	USD	Point-in-time
Total cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$197.00M	USD	Point-in-time
Total cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$249.00M	USD	Point-in-time
Net Income	`NetIncomeLoss`	$414.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$217.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$262.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$193.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$588.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$322.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$99.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$317.00M	USD	3 Qtrs
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$106.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$290.00M	USD	3 Qtrs
Stock-based compensation and other	`ShareBasedCompensation`	$34.00M	USD	3 Qtrs
Stock-based compensation and other	`ShareBasedCompensation`	$20.00M	USD	3 Qtrs
Changes in deferred tax provision	`IncreaseDecreaseInDeferredIncomeTaxes`	$-187.00M	USD	3 Qtrs
Changes in deferred tax provision	`IncreaseDecreaseInDeferredIncomeTaxes`	$-122.00M	USD	3 Qtrs
Increase in air traffic liability	`IncreaseDecreaseInAirTrafficLiability1`	$144.00M	USD	3 Qtrs
Increase in air traffic liability	`IncreaseDecreaseInAirTrafficLiability1`	$244.00M	USD	3 Qtrs
Increase in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$97.00M	USD	3 Qtrs
Increase in deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$106.00M	USD	3 Qtrs
Pension contribution	`IncreaseDecreaseInPensionPlanObligations`	$-65.00M	USD	3 Qtrs
Pension contribution	`IncreaseDecreaseInPensionPlanObligations`	-	USD	3 Qtrs
Othernet	`OtherOperatingActivitiesCashFlowStatement`	$-124.00M	USD	3 Qtrs
Othernet	`OtherOperatingActivitiesCashFlowStatement`	$-7.00M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$986.00M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.38B	USD	3 Qtrs
Aircraft and aircraft purchase deposits	`PaymentsForFlightEquipment`	$349.00M	USD	3 Qtrs
Aircraft and aircraft purchase deposits	`PaymentsForFlightEquipment`	$286.00M	USD	3 Qtrs
Other flight equipment	`PaymentsToAcquireOtherProductiveAssets`	$125.00M	USD	3 Qtrs
Other flight equipment	`PaymentsToAcquireOtherProductiveAssets`	$76.00M	USD	3 Qtrs
Other property and equipment	`PaymentsToAcquireOtherPropertyPlantAndEquipment`	$116.00M	USD	3 Qtrs
Other property and equipment	`PaymentsToAcquireOtherPropertyPlantAndEquipment`	$129.00M	USD	3 Qtrs
Total property and equipment additions, including capitalized interest	`PaymentsToAcquirePropertyPlantAndEquipment`	$527.00M	USD	3 Qtrs
Total property and equipment additions, including capitalized interest	`PaymentsToAcquirePropertyPlantAndEquipment`	$554.00M	USD	3 Qtrs
Purchases of marketable securities	`PaymentsToAcquireMarketableSecurities`	$672.00M	USD	3 Qtrs
Purchases of marketable securities	`PaymentsToAcquireMarketableSecurities`	$1.45B	USD	3 Qtrs
Sales and maturities of marketable securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$857.00M	USD	3 Qtrs
Sales and maturities of marketable securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$1.23B	USD	3 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-37.00M	USD	3 Qtrs
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-36.00M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-333.00M	USD	3 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-708.00M	USD	3 Qtrs
Proceeds from issuance of debt	`ProceedsFromIssuanceOfSecuredDebt`	-	USD	3 Qtrs
Proceeds from issuance of debt	`ProceedsFromIssuanceOfSecuredDebt`	$356.00M	USD	3 Qtrs
Long-term debt payments	`RepaymentsOfLongTermDebt`	$544.00M	USD	3 Qtrs
Long-term debt payments	`RepaymentsOfLongTermDebt`	$752.00M	USD	3 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$53.00M	USD	3 Qtrs
Common stock repurchases	`PaymentsForRepurchaseOfCommonStock`	$37.00M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$129.00M	USD	3 Qtrs
Dividends paid	`PaymentsOfDividends`	$118.00M	USD	3 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$33.00M	USD	3 Qtrs
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$40.00M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-538.00M	USD	3 Qtrs
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-666.00M	USD	3 Qtrs
Net increase (decrease) in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$135.00M	USD	3 Qtrs
Net increase (decrease) in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-13.00M	USD	3 Qtrs
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$114.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$184.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$197.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$249.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$114.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$184.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$197.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of the period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$249.00M	USD	Point-in-time
Interest (net of amount capitalized)	`InterestPaidNet`	$60.00M	USD	3 Qtrs
Interest (net of amount capitalized)	`InterestPaidNet`	$48.00M	USD	3 Qtrs
Income taxes, net of refunds received	`IncomeTaxesPaidNet`	-	USD	3 Qtrs
Income taxes, net of refunds received	`IncomeTaxesPaidNet`	$2.00M	USD	3 Qtrs
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$105.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$237.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$174.00M	USD	Point-in-time
Restricted cash included in Prepaid expenses and other current assets	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$12.00M	USD	Point-in-time
Restricted cash included in Prepaid expenses and other current assets	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$10.00M	USD	Point-in-time

Stockholders Equity 65 line items

Line Item	Tag	Value	Unit	Period
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.44B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.79B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.75B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.59B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.97B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$4.25B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.46B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.75B	USD	Point-in-time
Cumulative Effect of New Accounting Principle in Period of Adoption	`CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption`	$3.00M	USD	Point-in-time
Common stock, shares outstanding (shares)	`CommonStockSharesOutstanding`	123.19M	shares	Point-in-time
Common stock, shares outstanding (shares)	`CommonStockSharesOutstanding`	123.28M	shares	Point-in-time
Net Income	`NetIncomeLoss`	$414.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$217.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$262.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$193.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$588.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$322.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$11.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$7.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$5.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$14.00M	USD	3 Qtrs
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$27.00M	USD	3 Qtrs
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$15.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$13.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$12.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$28.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$13.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$13.00M	USD	1 Quarter
Stock Repurchased During Period, Value	`StockRepurchasedDuringPeriodValue`	$12.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$9.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$9.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$7.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$12.00M	USD	1 Quarter
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$12.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$40.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$43.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$39.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$43.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$40.00M	USD	1 Quarter
Dividends, Cash	`DividendsCash`	$43.00M	USD	1 Quarter
Cash dividend declared per share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.35	USD	1 Quarter
Cash dividend declared per share (usd per share)	`CommonStockDividendsPerShareDeclared`	$0.32	USD	1 Quarter
Stock Issued During Period, Value, Employee Stock Purchase Plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$18.00M	USD	1 Quarter
Stock Issued During Period, Value, Employee Stock Purchase Plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$17.00M	USD	1 Quarter
Stock Issued During Period, Value, Employee Stock Purchase Plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$20.00M	USD	1 Quarter
Stock Issued During Period, Value, Employee Stock Purchase Plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$20.00M	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	-	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	$-3.00M	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	-	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	-	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	$-3.00M	USD	1 Quarter
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	`StockIssuedDuringPeriodValueShareBasedCompensation`	$-1.00M	USD	1 Quarter
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.44B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.79B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.75B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.59B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.97B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$4.25B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.46B	USD	Point-in-time
Stockholders' Equity Attributable to Parent	`StockholdersEquity`	$3.75B	USD	Point-in-time

Comprehensive Income 64 line items

Line Item	Tag	Value	Unit	Period
Net Income	`NetIncomeLoss`	$414.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$217.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$262.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$193.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$588.00M	USD	3 Qtrs
Net Income	`NetIncomeLoss`	$4.00M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$322.00M	USD	1 Quarter
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$4.00M	USD	1 Quarter
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-19.00M	USD	3 Qtrs
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$-2.00M	USD	1 Quarter
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax`	$31.00M	USD	3 Qtrs
Reclassification of (gain) loss into Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-2.00M	USD	1 Quarter
Reclassification of (gain) loss into Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$5.00M	USD	1 Quarter
Reclassification of (gain) loss into Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$-5.00M	USD	3 Qtrs
Reclassification of (gain) loss into Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax`	$3.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	$7.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	-	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	$-1.00M	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax`	$-4.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$21.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-1.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$1.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-10.00M	USD	3 Qtrs
Reclassification of net pension expense into Wages and benefits and Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-7.00M	USD	1 Quarter
Reclassification of net pension expense into Wages and benefits and Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-21.00M	USD	3 Qtrs
Reclassification of net pension expense into Wages and benefits and Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-24.00M	USD	3 Qtrs
Reclassification of net pension expense into Wages and benefits and Other - net nonoperating income (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$-8.00M	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossTax`	$6.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossTax`	$2.00M	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossTax`	$5.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossTax`	$2.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-5.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-6.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-16.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-18.00M	USD	3 Qtrs
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-5.00M	USD	1 Quarter
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	-	USD	1 Quarter
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$8.00M	USD	3 Qtrs
Unrealized holding gain (loss) arising during the period	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	$-17.00M	USD	3 Qtrs
Reclassification of loss into Aircraft rent	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$-2.00M	USD	3 Qtrs
Reclassification of loss into Aircraft rent	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$-2.00M	USD	1 Quarter
Reclassification of loss into Aircraft rent	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$-1.00M	USD	1 Quarter
Reclassification of loss into Aircraft rent	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax`	$-3.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax`	-	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax`	$3.00M	USD	3 Qtrs
Income tax effect	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax`	$1.00M	USD	1 Quarter
Income tax effect	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax`	$-3.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$8.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-12.00M	USD	3 Qtrs
Total	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-4.00M	USD	1 Quarter
Total	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$1.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$2.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$11.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$7.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$5.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$14.00M	USD	3 Qtrs
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$27.00M	USD	3 Qtrs
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$15.00M	USD	1 Quarter
Other Comprehensive Income	`OtherComprehensiveIncomeLossNetOfTax`	$1.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$428.00M	USD	3 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$224.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$323.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$615.00M	USD	3 Qtrs

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