$ALK
ALASKA AIR GROUP, INC. Stock $alk

$alk Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000076642121000100 Filed on November 04, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q4
Revenue	$1.899B	$1.953B	$808.0M
YoY Change	135.02%	178.6%	-63.73%
Cost Of Revenue	$876.0M	$810.0M	$495.0M
YoY Change	76.97%	71.97%	-48.92%
Gross Profit	$1.023B	$1.143B	$313.0M
YoY Change	226.84%	396.96%	-75.14%
Gross Profit Margin	53.87%	58.53%	38.74%
Selling, General & Admin	$729.0M	$669.0M	$557.0M
YoY Change	30.88%	19.25%	-26.03%
% of Gross Profit	71.26%	58.53%	177.96%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$100.0M	$99.00M	$100.0M
YoY Change	0.0%	-5.71%	-5.66%
% of Gross Profit	9.78%	8.66%	31.95%
Operating Expenses	$988.0M	$1.695B	$754.0M
YoY Change	31.03%	33.25%	-25.12%
Operating Profit	$35.00M	$258.0M	-$441.0M
YoY Change	-107.94%	-145.18%	-275.0%
Interest Expense	-$19.00M	-$21.00M	-$23.00M
YoY Change	-17.39%	-8.7%	-1250.0%
% of Operating Profit	-54.29%	-8.14%
Other Income/Expense, Net	$9.000M	-$13.00M	$1.000M
YoY Change	800.0%	-27.78%	-116.67%
Pretax Income	$29.00M	$245.0M	-$643.0M
YoY Change	-104.51%	-141.6%	-364.61%
Income Tax	$25.00M	$51.00M	-$196.0M
% Of Pretax Income	86.21%	20.82%
Net Earnings	$18.00M	$194.0M	-$447.0M
YoY Change	-104.03%	-145.01%	-346.96%
Net Earnings / Revenue	0.95%	9.93%	-55.32%
Basic Earnings Per Share		$1.55
Diluted Earnings Per Share	$140.5K	$1.53	-$3.605M
COMMON SHARES
Basic Shares Outstanding	125.3M shares	125.3M shares	123.7M shares
Diluted Shares Outstanding		127.2M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.070B	$3.195B	$3.346B
YoY Change	-8.25%	-15.0%	119.99%
Cash & Equivalents	$470.0M	$495.0M	$1.370B
Short-Term Investments	$2.600B	$2.700B	$1.976B
Other Short-Term Assets	$196.0M	$208.0M	$123.0M
YoY Change	59.35%	-36.59%	1.65%
Inventory	$62.00M	$62.00M	$57.00M
Prepaid Expenses
Receivables	$546.0M	$536.0M	$480.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.920B	$4.001B	$4.006B
YoY Change	-2.15%	-10.39%	96.66%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.138B	$6.120B	$6.211B
YoY Change	-1.18%	-4.09%	-10.01%
Goodwill	$2.044B	$1.943B	$2.050B
YoY Change	-0.29%	0.0%	5.51%
Intangibles		$102.0M	$107.0M
YoY Change		-4.67%	-12.3%
Long-Term Investments
YoY Change
Other Assets	$396.0M	$346.0M	$379.0M
YoY Change	4.49%	2.67%	36.33%
Total Long-Term Assets	$10.03B	$9.881B	$10.04B
YoY Change	-0.09%	-3.92%	-8.36%
TOTAL ASSETS
Total Short-Term Assets	$3.920B	$4.001B	$4.006B
Total Long-Term Assets	$10.03B	$9.881B	$10.04B
Total Assets	$13.95B	$13.88B	$14.05B
YoY Change	-0.68%	-5.88%	8.1%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$200.0M	$181.0M	$108.0M
YoY Change	85.19%	94.62%	-26.03%
Accrued Expenses	$625.0M	$603.0M	$424.0M
YoY Change	47.41%	48.52%	-1.62%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$366.0M	$425.0M	$1.138B
YoY Change	-67.84%	-63.04%	384.26%
Total Short-Term Liabilities	$3.991B	$4.024B	$4.293B
YoY Change	-7.03%	-4.35%	34.11%
LONG-TERM LIABILITIES
Long-Term Debt	$2.173B	$2.225B	$2.357B
YoY Change	-7.81%	-16.73%	86.47%
Other Long-Term Liabilities	$378.0M	$391.0M	$524.0M
YoY Change	-27.86%	-17.86%	125.86%
Total Long-Term Liabilities	$2.551B	$2.616B	$2.881B
YoY Change	-11.45%	-40.76%	-31.36%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.991B	$4.024B	$4.293B
Total Long-Term Liabilities	$2.551B	$2.616B	$2.881B
Total Liabilities	$6.542B	$6.640B	$7.174B
YoY Change	-8.81%	-23.0%	-3.03%
SHAREHOLDERS EQUITY
Retained Earnings	$4.242B	$4.224B	$3.764B
YoY Change	12.7%	0.31%	-26.67%
Common Stock	$495.0M	$463.0M	$392.0M
YoY Change	26.28%	26.16%	28.1%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$674.0M	$674.0M	$674.0M
YoY Change	0.0%	0.0%	4.82%
Treasury Stock Shares	9.350M shares	9.350M shares	9.350M shares
Shareholders Equity	$3.801B	$3.531B	$2.988B
YoY Change
Total Liabilities & Shareholders Equity	$13.95B	$13.88B	$14.05B
YoY Change	-0.68%	-5.88%	8.1%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q4
OPERATING ACTIVITIES
Net Income	$18.00M	$194.0M	-$447.0M
YoY Change	-104.03%	-145.01%	-346.96%
Depreciation, Depletion And Amortization	$100.0M	$99.00M	$100.0M
YoY Change	0.0%	-5.71%	-5.66%
Cash From Operating Activities	$129.0M	-$106.0M	-$350.0M
YoY Change	-136.86%	-48.29%	-202.64%
INVESTING ACTIVITIES
Capital Expenditures	-$105.0M	-$92.00M	-$24.00M
YoY Change	337.5%	155.56%	-85.8%
Acquisitions
YoY Change
Other Investing Activities	$40.00M	$219.0M	$198.0M
YoY Change	-79.8%	-136.08%	130.23%
Cash From Investing Activities	-$65.00M	$127.0M	$174.0M
YoY Change	-137.36%	-119.75%	-309.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-89.00M	-544.0M	-305.0M
YoY Change	-70.82%	-145.52%	10.91%
NET CHANGE
Cash From Operating Activities	129.0M	-106.0M	-350.0M
Cash From Investing Activities	-65.00M	127.0M	174.0M
Cash From Financing Activities	-89.00M	-544.0M	-305.0M
Net Change In Cash	-25.00M	-523.0M	-481.0M
YoY Change	-94.8%	-250.72%	2729.41%
FREE CASH FLOW
Cash From Operating Activities	$129.0M	-$106.0M	-$350.0M
Capital Expenditures	-$105.0M	-$92.00M	-$24.00M
Free Cash Flow	$234.0M	-$14.00M	-$326.0M
YoY Change	-171.78%	-91.72%	-163.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000766421
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-8957
	dei	Entity Registrant Name EntityRegistrantName	ALASKA AIR GROUP, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	91-1292054
	dei	Entity Address Address Line1 EntityAddressAddressLine1	19300 International Boulevard,
	dei	Entity Address City Or Town EntityAddressCityOrTown	Seattle,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	WA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	98188
	dei	City Area Code CityAreaCode	(206)
	dei	Local Phone Number LocalPhoneNumber	392-5040
	dei	Security12b Title Security12bTitle	Common stock, $0.01 par value
	dei	Trading Symbol TradingSymbol	ALK
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	125310668	shares
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	495000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1370000000	USD
CY2021Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	2700000000	USD
CY2020Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1976000000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	3195000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	3346000000	USD
CY2021Q3	us-gaap	Receivables Net Current ReceivablesNetCurrent	536000000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	480000000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	62000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	57000000	USD
CY2021Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	208000000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	123000000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	4001000000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	4006000000	USD
CY2021Q3	us-gaap	Flight Equipment Gross FlightEquipmentGross	8076000000	USD
CY2020Q4	us-gaap	Flight Equipment Gross FlightEquipmentGross	7761000000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	1446000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	1398000000	USD
CY2021Q3	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	378000000	USD
CY2020Q4	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	583000000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9900000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9742000000	USD
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3780000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3531000000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	6120000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	6211000000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1370000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1400000000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	1943000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	1943000000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	102000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	107000000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	346000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	379000000	USD
CY2021Q3	us-gaap	Other Assets OtherAssets	3761000000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	3829000000	USD
CY2021Q3	us-gaap	Assets Assets	13882000000	USD
CY2020Q4	us-gaap	Assets Assets	14046000000	USD
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	181000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	108000000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	426000000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	527000000	USD
CY2021Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	603000000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	424000000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	260000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	290000000	USD
CY2021Q3	us-gaap	Debt Current DebtCurrent	425000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	1138000000	USD
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	4024000000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4293000000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2225000000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2357000000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1206000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1268000000	USD
CY2021Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	501000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	407000000	USD
CY2021Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	1446000000	USD
CY2020Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	1544000000	USD
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	558000000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	665000000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	391000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	524000000	USD
CY2021Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	4102000000	USD
CY2020Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	4408000000	USD
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	134655235	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	133567534	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	125305291	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	124217590	shares
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	1000000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1000000	USD
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	462000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	391000000	USD
CY2021Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	9349944	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	9349944	shares
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	674000000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	674000000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-482000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-494000000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4224000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3764000000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	3531000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2988000000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13882000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14046000000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1953000000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	701000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4277000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2758000000	USD
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	578000000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	495000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1581000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1579000000	USD
CY2021Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	42000000	USD
CY2020Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	42000000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	109000000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	65000000	USD
CY2021Q3	alk	Psp Grant Recognized PSPGrantRecognized	0	USD
CY2020Q3	alk	Psp Grant Recognized PSPGrantRecognized	398000000	USD
	alk	Psp Grant Recognized PSPGrantRecognized	914000000	USD
	alk	Psp Grant Recognized PSPGrantRecognized	760000000	USD
CY2021Q3	us-gaap	Fuel Costs FuelCosts	376000000	USD
CY2020Q3	us-gaap	Fuel Costs FuelCosts	125000000	USD
	us-gaap	Fuel Costs FuelCosts	853000000	USD
	us-gaap	Fuel Costs FuelCosts	568000000	USD
CY2021Q3	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	89000000	USD
CY2020Q3	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	84000000	USD
	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	272000000	USD
	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	244000000	USD
CY2021Q3	us-gaap	Aircraft Rental AircraftRental	64000000	USD
CY2020Q3	us-gaap	Aircraft Rental AircraftRental	74000000	USD
	us-gaap	Aircraft Rental AircraftRental	188000000	USD
	us-gaap	Aircraft Rental AircraftRental	229000000	USD
CY2021Q3	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	141000000	USD
CY2020Q3	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	109000000	USD
	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	414000000	USD
	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	323000000	USD
CY2021Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	62000000	USD
CY2020Q3	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	36000000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	167000000	USD
	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	138000000	USD
CY2021Q3	us-gaap	Selling Expense SellingExpense	49000000	USD
CY2020Q3	us-gaap	Selling Expense SellingExpense	24000000	USD
	us-gaap	Selling Expense SellingExpense	123000000	USD
	us-gaap	Selling Expense SellingExpense	83000000	USD
CY2021Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	99000000	USD
CY2020Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	105000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	294000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	320000000	USD
CY2021Q3	us-gaap	Cost Of Services Catering CostOfServicesCatering	39000000	USD
CY2020Q3	us-gaap	Cost Of Services Catering CostOfServicesCatering	14000000	USD
	us-gaap	Cost Of Services Catering CostOfServicesCatering	97000000	USD
	us-gaap	Cost Of Services Catering CostOfServicesCatering	70000000	USD
CY2021Q3	alk	Regional Carrier Expense RegionalCarrierExpense	39000000	USD
CY2020Q3	alk	Regional Carrier Expense RegionalCarrierExpense	29000000	USD
	alk	Regional Carrier Expense RegionalCarrierExpense	106000000	USD
	alk	Regional Carrier Expense RegionalCarrierExpense	92000000	USD
CY2021Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	126000000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	89000000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	348000000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	310000000	USD
CY2021Q3	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	-9000000	USD
CY2020Q3	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	121000000	USD
	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	5000000	USD
	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	350000000	USD
CY2021Q3	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2020Q3	us-gaap	Restructuring Charges RestructuringCharges	322000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-12000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	322000000	USD
CY2021Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1000000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	5000000	USD
CY2021Q3	us-gaap	Costs And Expenses CostsAndExpenses	1695000000	USD
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	1272000000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	3631000000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	3938000000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	258000000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-571000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	646000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1180000000	USD
CY2021Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	6000000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	7000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	19000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
CY2021Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	30000000	USD
CY2020Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	34000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	101000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	64000000	USD
CY2021Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3000000	USD
CY2020Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	4000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	9000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	8000000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8000000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	27000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	16000000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-13000000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-18000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-46000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-17000000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	245000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-589000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	600000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1197000000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51000000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-158000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	140000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-320000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	194000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-431000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	460000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-877000000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.69
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-7.12
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.49
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.64
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-7.12
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	125250000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	123647000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	124846000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	123255000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	127188000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	123647000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	126325000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	123255000	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	194000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-431000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	460000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-877000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2000000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-15000000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	32000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	6000000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	11000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-5000000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	5000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-16000000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	16000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-8000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-7000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-25000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-22000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1000000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	6000000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	5000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-6000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-6000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-19000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-17000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	11000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-25000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-2000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-1000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-2000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	5000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	2000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	2000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	9000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-18000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	15000000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	199000000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-423000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	472000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-862000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2988000000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	-131000000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12000000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	8000000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2000000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	2875000000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	397000000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	7000000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13000000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	8000000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	23000000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1000000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	3324000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	194000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5000000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10000000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2000000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	3531000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	4331000000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-232000000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17000000	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	31000000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9000000	USD
CY2020Q1	us-gaap	Dividends Cash DividendsCash	45000000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	4015000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-214000000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	24000000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2000000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	7000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	27000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	3861000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-431000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8000000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	9000000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7000000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	3454000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	460000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-877000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	294000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	320000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	35000000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	14000000	USD
	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	5000000	USD
	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	350000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-12000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	322000000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-95000000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	220000000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	152000000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	171000000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	73000000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	193000000	USD
	us-gaap	Pension Contributions PensionContributions	100000000	USD
	us-gaap	Pension Contributions PensionContributions	0	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-101000000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-157000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	901000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	116000000	USD
	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	52000000	USD
	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	61000000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	78000000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	49000000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	60000000	USD
	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	94000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	190000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	204000000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	3413000000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	2092000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	2669000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1520000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-9000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-943000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-767000000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	363000000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2581000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	31000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	45000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1222000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	238000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	34000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	19000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-825000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2286000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-867000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1635000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1386000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	232000000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	519000000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1867000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	100000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	38000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	126000000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	54000000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	495000000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1855000000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	24000000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	12000000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	519000000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1867000000	USD
CY2020	alk	Leased Aircraft Return Costs LeasedAircraftReturnCosts	209000000	USD
CY2021Q2	alk	Leased Aircraft Return Costs LeasedAircraftReturnCosts	18000000	USD
CY2021Q2	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	4000000	USD
CY2021Q3	alk	Special Items Impairment Charges And Other SpecialItemsImpairmentChargesAndOther	-9000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	220000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-12000000	USD
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	127000000	USD
	us-gaap	Payments For Restructuring PaymentsForRestructuring	99000000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-12000000	USD
CY2021Q3	us-gaap	Restructuring Reserve RestructuringReserve	16000000	USD
	alk	Psp Grant Recognized PSPGrantRecognized	914000000	USD
	alk	Psp Grant Recognized PSPGrantRecognized	914000000	USD
	alk	Cares Act Payroll Tax Relief CARESActPayrollTaxRelief	21000000	USD
	alk	Proceeds From Payroll Support Program Grant ProceedsFromPayrollSupportProgramGrant	1645000000	USD
	alk	Total Unsecured Term Loan Through Psp Of Cares Act TotalUnsecuredTermLoanThroughPSPOfCARESAct	600000000	USD
	alk	Cares Act Psp Warrants Issued Value CARESActPSPWarrantsIssuedValue	25000000	USD
	alk	Total Expected Relief From Psp Of Cares Act TotalExpectedReliefFromPSPOfCARESAct	2270000000	USD
CY2021Q3	alk	Covid19 Credits Issued Balance COVID19CreditsIssuedBalance	324000000	USD
CY2020Q4	alk	Covid19 Credits Issued Balance COVID19CreditsIssuedBalance	569000000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2700000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	1193000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	1194000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	1409000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	1418000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	81000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	81000000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2683000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2693000000	USD
CY2021Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	20000000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	33000000	USD
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	2650000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	3495000000	USD
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	425000000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1138000000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2225000000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2357000000	USD
CY2021Q3	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.036
CY2020Q4	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.043
CY2021Q3	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.012
CY2020Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.019
CY2021Q3	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.033
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	363000000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1200000000	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	363000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	112000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	371000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	334000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	240000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	261000000	USD
CY2021Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1352000000	USD
CY2021Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2670000000	USD
CY2021Q3	alk	Line Of Credit Facility Number Of Credit Facilities LineOfCreditFacilityNumberOfCreditFacilities	3	airline
CY2021Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	486000000	USD
CY2021Q3	alk	Line Of Credit Facility Asset Restrictions Unrestricted Cash And Marketable Securities LineOfCreditFacilityAssetRestrictionsUnrestrictedCashAndMarketableSecurities	500000000	USD
	us-gaap	Pension Contributions PensionContributions	100000000	USD
CY2021Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	22000000	USD
CY2021Q3	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight	539508	shares
CY2021Q3	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	1882518	shares
CY2021Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	6000000	USD
CY2021Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	30000000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	7000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	23000000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	479000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	498000000	USD
CY2021Q3	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-10000000	USD
CY2020Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-19000000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-482000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-494000000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1953000000	USD
CY2021Q3	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	1319000000	USD
CY2021Q3	us-gaap	Fuel Costs FuelCosts	376000000	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	1695000000	USD
CY2021Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3000000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	8000000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-13000000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	245000000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	701000000	USD
CY2020Q3	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	1147000000	USD
CY2020Q3	us-gaap	Fuel Costs FuelCosts	125000000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	1272000000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	7000000	USD
CY2020Q3	us-gaap	Interest Costs Incurred InterestCostsIncurred	34000000	USD
CY2020Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	4000000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5000000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-18000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-589000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4277000000	USD
	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	2778000000	USD
	us-gaap	Fuel Costs FuelCosts	853000000	USD
	us-gaap	Operating Expenses OperatingExpenses	3631000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	19000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	101000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	9000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	27000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-46000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	600000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2758000000	USD
	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	3370000000	USD
	us-gaap	Fuel Costs FuelCosts	568000000	USD
	us-gaap	Operating Expenses OperatingExpenses	3938000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	64000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	8000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	16000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-17000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1197000000	USD
CY2021Q3	us-gaap	Assets Assets	13882000000	USD
CY2020Q4	us-gaap	Assets Assets	14046000000	USD

Files In Submission

Name	View Source	Status
0000766421-21-000100-index-headers.html	Edgar Link	pending
0000766421-21-000100-index.html	Edgar Link	pending
0000766421-21-000100.txt	Edgar Link	pending
0000766421-21-000100-xbrl.zip	Edgar Link	pending
alk-20210930.htm	Edgar Link	pending
alk-20210930.xsd	Edgar Link	pending
alk-20210930_cal.xml	Edgar Link	unprocessable
alk-20210930_def.xml	Edgar Link	unprocessable
alk-20210930_htm.xml	Edgar Link	completed
alk-20210930_lab.xml	Edgar Link	unprocessable
alk-20210930_pre.xml	Edgar Link	unprocessable
alk10-q32021ex311.htm	Edgar Link	pending
alk10-q32021ex312.htm	Edgar Link	pending
alk10-q32021ex321.htm	Edgar Link	pending
alk10-q32021ex322.htm	Edgar Link	pending
ex101-aagincchangeofcontro.htm	Edgar Link	pending
ex102-amendmentno16topurch.htm	Edgar Link	pending
ex103-supplementalagreemen.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$ALK
ALASKA AIR GROUP, INC. Stock $alk

2021 Q4 Form 10-Q Financial Statement

#000076642121000100 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALK ALASKA AIR GROUP, INC. Stock $alk

2021 Q4 Form 10-Q Financial Statement

#000076642121000100 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALK
ALASKA AIR GROUP, INC. Stock $alk