$LUV
SOUTHWEST AIRLINES CO Stock $luv

$luv Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000009238020000145 Filed on October 27, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q4
Revenue	$2.013B	$1.793B	$5.729B
YoY Change	-64.86%	-68.2%	0.44%
Cost Of Revenue	$660.0M	$687.0M	$1.432B
YoY Change	-53.91%	-52.13%	-7.85%
Gross Profit	$1.353B	$1.106B	$4.298B
YoY Change	-68.52%	-73.69%	3.57%
Gross Profit Margin	67.21%	61.68%	75.02%
Selling, General & Admin	$1.719B	$1.863B	$2.605B
YoY Change	-34.01%	-21.06%	14.1%
% of Gross Profit	127.05%	168.44%	60.61%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$315.0M	$316.0M	$313.0M
YoY Change	0.64%	2.6%	-5.44%
% of Gross Profit	23.28%	28.57%	7.28%
Operating Expenses	$2.555B	$2.666B	$3.633B
YoY Change	-29.67%	-44.69%	9.1%
Operating Profit	-$1.169B	-$1.411B	$665.0M
YoY Change	-275.79%	-272.28%	-18.9%
Interest Expense	-$100.0M	-$96.00M	$1.000M
YoY Change	-10100.0%	-420.0%	-200.0%
% of Operating Profit			0.15%
Other Income/Expense, Net	-$63.00M	-$131.0M	$0.00
YoY Change			-100.0%
Pretax Income	-$1.331B	-$1.542B	$666.0M
YoY Change	-299.85%	-288.28%	-18.48%
Income Tax	-$423.0M	-$385.0M	$184.0M
% Of Pretax Income			27.63%
Net Earnings	-$908.0M	-$1.157B	$514.0M
YoY Change	-276.65%	-275.57%	-21.41%
Net Earnings / Revenue	-45.11%	-64.53%	8.97%
Basic Earnings Per Share	-$1.54	-$1.96	$0.98
Diluted Earnings Per Share	-$1.54	-$1.96	$0.98
COMMON SHARES
Basic Shares Outstanding	590.3M shares	590.0M shares	526.3M shares
Diluted Shares Outstanding		590.0M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$13.33B	$14.56B	$4.072B
YoY Change	227.46%	262.6%	10.38%
Cash & Equivalents	$11.06B	$12.11B	$2.548B
Short-Term Investments	$2.271B	$2.453B	$1.524B
Other Short-Term Assets	$295.0M	$248.0M	$287.0M
YoY Change	2.79%	3.77%	-7.42%
Inventory	$414.0M	$426.0M	$529.0M
Prepaid Expenses
Receivables	$46.00M	$514.0M	$1.086B
Other Receivables	$35.00M	$12.00M	$55.00M
Total Short-Term Assets	$15.17B	$16.13B	$5.974B
YoY Change	153.98%	185.54%	18.81%
LONG-TERM ASSETS
Property, Plant & Equipment	$15.83B	$16.06B	$17.03B
YoY Change	-7.01%	-10.01%	-12.8%
Goodwill	$970.0M	$970.0M	$970.0M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$295.0M	$295.0M	$296.0M
YoY Change	-0.34%	-5.14%	-26.0%
Long-Term Investments
YoY Change
Other Assets	$722.0M	$679.0M	$577.0M
YoY Change	25.13%	3.98%	-19.86%
Total Long-Term Assets	$19.42B	$19.47B	$19.92B
YoY Change	-2.54%	-6.46%	-6.1%
TOTAL ASSETS
Total Short-Term Assets	$15.17B	$16.13B	$5.974B
Total Long-Term Assets	$19.42B	$19.47B	$19.92B
Total Assets	$34.59B	$35.61B	$25.90B
YoY Change	33.57%	34.53%	-1.33%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$931.0M	$980.0M	$1.574B
YoY Change	-40.85%	-23.08%	11.16%
Accrued Expenses	$2.259B	$1.836B	$1.749B
YoY Change	29.16%	26.1%	0.0%
Deferred Revenue	$3.790B	$3.952B	$4.457B
YoY Change	-14.97%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$220.0M	$720.0M	$819.0M
YoY Change	-73.14%	13.03%	35.15%
Total Short-Term Liabilities	$7.506B	$7.804B	$8.952B
YoY Change	-16.15%	-9.56%	13.24%
LONG-TERM LIABILITIES
Long-Term Debt	$10.11B	$10.14B	$1.846B
YoY Change	447.72%	322.64%	-34.52%
Other Long-Term Liabilities	$1.247B	$1.233B	$706.0M
YoY Change	76.63%	91.46%	8.62%
Total Long-Term Liabilities	$1.247B	$1.233B	$706.0M
YoY Change	76.63%	91.46%	8.62%
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.506B	$7.804B	$8.952B
Total Long-Term Liabilities	$1.247B	$1.233B	$706.0M
Total Liabilities	$8.753B	$9.037B	$9.658B
YoY Change	-9.37%	-2.55%	12.89%
SHAREHOLDERS EQUITY
Retained Earnings	$14.78B	$15.69B	$17.95B
YoY Change	-17.65%	-10.5%	12.39%
Common Stock	$5.079B	$5.063B	$2.389B
YoY Change	112.6%	114.35%	3.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.88B	$10.88B	$10.44B
YoY Change	4.16%	9.95%	23.53%
Treasury Stock Shares	297.6M shares		288.5M shares
Shareholders Equity	$8.876B	$9.769B	$9.832B
YoY Change
Total Liabilities & Shareholders Equity	$34.59B	$35.61B	$25.90B
YoY Change	33.57%	34.53%	-1.33%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q4
OPERATING ACTIVITIES
Net Income	-$908.0M	-$1.157B	$514.0M
YoY Change	-276.65%	-275.57%	-21.41%
Depreciation, Depletion And Amortization	$315.0M	$316.0M	$313.0M
YoY Change	0.64%	2.6%	-5.44%
Cash From Operating Activities	-$596.0M	-$1.050B	$824.0M
YoY Change	-172.33%	-196.24%	-16.68%
INVESTING ACTIVITIES
Capital Expenditures	-$90.00M	-$89.00M	-$261.0M
YoY Change	-65.52%	-76.33%	-51.93%
Acquisitions
YoY Change
Other Investing Activities	$181.0M	-$345.0M	$405.0M
YoY Change	-55.31%		-424.0%
Cash From Investing Activities	$91.00M	-$434.0M	$144.0M
YoY Change	-36.81%	20.89%	-121.56%
FINANCING ACTIVITIES
Cash Dividend Paid		$0.00
YoY Change		-100.0%
Common Stock Issuance & Retirement, Net		$0.00
YoY Change		-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-541.0M	$1.242B	-908.0M
YoY Change	-40.42%	-280.0%	59.02%
NET CHANGE
Cash From Operating Activities	-596.0M	-$1.050B	824.0M
Cash From Investing Activities	91.00M	-$434.0M	144.0M
Cash From Financing Activities	-541.0M	$1.242B	-908.0M
Net Change In Cash	-1.046B	-$242.0M	60.00M
YoY Change	-1843.33%	-676.19%	-124.0%
FREE CASH FLOW
Cash From Operating Activities	-$596.0M	-$1.050B	$824.0M
Capital Expenditures	-$90.00M	-$89.00M	-$261.0M
Free Cash Flow	-$506.0M	-$961.0M	$1.085B
YoY Change	-146.64%	-165.51%	-29.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000092380
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	590273067	shares
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Received In June2020 ProceedsFromPayrollSupportProgramGrantReceivedInJune2020	652000000	USD
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-7259
	dei	Entity Registrant Name EntityRegistrantName	SOUTHWEST AIRLINES CO.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TX
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-1563240
	dei	Entity Address Address Line1 EntityAddressAddressLine1	P.O. Box 36611
	dei	Entity Address City Or Town EntityAddressCityOrTown	Dallas,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	75235-1611
	dei	City Area Code CityAreaCode	214
	dei	Local Phone Number LocalPhoneNumber	792-4000
	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
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	590273067	shares
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12109000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2548000000	USD
CY2020Q3	us-gaap	Short Term Investments ShortTermInvestments	2453000000	USD
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	1524000000	USD
CY2020Q3	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	897000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2020Q3	us-gaap	Airline Related Inventory AirlineRelatedInventory	426000000	USD
CY2019Q4	us-gaap	Airline Related Inventory AirlineRelatedInventory	529000000	USD
CY2020Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	248000000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	287000000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	16133000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	5974000000	USD
CY2020Q3	us-gaap	Flight Equipment Gross FlightEquipmentGross	20909000000	USD
CY2019Q4	us-gaap	Flight Equipment Gross FlightEquipmentGross	21629000000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	6005000000	USD
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CY2020Q3	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	311000000	USD
CY2019Q4	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	248000000	USD
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CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	10135000000	USD
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CY2020Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	3142000000	USD
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CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1824000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2364000000	USD
CY2020Q3	luv	Construction Obligation Noncurrent ConstructionObligationNoncurrent	274000000	USD
CY2019Q4	luv	Construction Obligation Noncurrent ConstructionObligationNoncurrent	164000000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1424000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	978000000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1233000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	888000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	808000000	USD
CY2020Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4175000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1581000000	USD
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CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	17945000000	USD
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CY2020Q3	us-gaap	Treasury Stock Value TreasuryStockValue	10877000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10441000000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	9769000000	USD
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CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	25895000000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1793000000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5639000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7035000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	16698000000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1678000000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2002000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5245000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	6046000000	USD
CY2020Q3	luv	Payroll Support And Voluntary Employee Programs Net PayrollSupportAndVoluntaryEmployeeProgramsNet	-149000000	USD
CY2019Q3	luv	Payroll Support And Voluntary Employee Programs Net PayrollSupportAndVoluntaryEmployeeProgramsNet	0	USD
	luv	Payroll Support And Voluntary Employee Programs Net PayrollSupportAndVoluntaryEmployeeProgramsNet	-933000000	USD
	luv	Payroll Support And Voluntary Employee Programs Net PayrollSupportAndVoluntaryEmployeeProgramsNet	0	USD
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	us-gaap	Fuel Costs FuelCosts	1507000000	USD
	us-gaap	Fuel Costs FuelCosts	3242000000	USD
CY2020Q3	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	185000000	USD
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	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	597000000	USD
	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	916000000	USD
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	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1036000000	USD
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CY2019Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	308000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	940000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	906000000	USD
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	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1405000000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2260000000	USD
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	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	9683000000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	14406000000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-1411000000	USD
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	us-gaap	Operating Income Loss OperatingIncomeLoss	-2648000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	2292000000	USD
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	us-gaap	Interest Costs Incurred InterestCostsIncurred	235000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	90000000	USD
CY2020Q3	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	11000000	USD
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	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	23000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	27000000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	4000000	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	30000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	70000000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-35000000	USD
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	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-95000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8000000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-131000000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	0	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-277000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1542000000	USD
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CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-385000000	USD
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	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	504000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-1157000000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	-2166000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1787000000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.96
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	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.89
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.30
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	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.89
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CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1129000000	USD
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	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-2207000000	USD
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CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	533000000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	556000000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	542000000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	590000000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	534000000	shares
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	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	543000000	shares
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CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	451000000	USD
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CY2020Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	13000000	USD
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CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	35000000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	392000000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-859000000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	10878000000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	13000000	USD
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CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1129000000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	9769000000	USD
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CY2019Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4000000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13000000	USD
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CY2019Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.180
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CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	675000000	USD
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CY2019Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	500000000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	9000000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	12000000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.180
CY2019Q3	us-gaap	Dividends Cash DividendsCash	96000000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	566000000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	9931000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-1157000000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2166000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1787000000	USD
CY2020Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	315000000	USD
CY2019Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	308000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	940000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	906000000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-17000000	USD
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	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-224000000	USD
CY2020Q3	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	298000000	USD
CY2019Q3	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-174000000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	528000000	USD
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CY2019Q3	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	0	USD
	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-222000000	USD
	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	0	USD
CY2020Q3	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	123000000	USD
CY2019Q3	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	88000000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	60000000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	292000000	USD
CY2020Q3	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-84000000	USD
CY2019Q3	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-79000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-366000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-195000000	USD
CY2020Q3	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	26000000	USD
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	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-65000000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-240000000	USD
CY2020Q3	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	216000000	USD
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	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1584000000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	897000000	USD
CY2020Q3	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-106000000	USD
CY2019Q3	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-87000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-312000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-210000000	USD
CY2020Q3	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	-5000000	USD
CY2019Q3	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	0	USD
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	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	0	USD
CY2020Q3	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-19000000	USD
CY2019Q3	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-43000000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-95000000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-104000000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1050000000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1091000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-531000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3163000000	USD
CY2020Q3	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	89000000	USD
CY2019Q3	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	375000000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	425000000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	766000000	USD
CY2020Q3	luv	Supplier Proceeds SupplierProceeds	0	USD
CY2019Q3	luv	Supplier Proceeds SupplierProceeds	0	USD
	luv	Supplier Proceeds SupplierProceeds	-428000000	USD
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CY2020Q3	luv	Sale Leaseback Cash Proceeds Investing SaleLeasebackCashProceedsInvesting	0	USD
CY2019Q3	luv	Sale Leaseback Cash Proceeds Investing SaleLeasebackCashProceedsInvesting	0	USD
	luv	Sale Leaseback Cash Proceeds Investing SaleLeasebackCashProceedsInvesting	815000000	USD
	luv	Sale Leaseback Cash Proceeds Investing SaleLeasebackCashProceedsInvesting	0	USD
CY2020Q3	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	1536000000	USD
CY2019Q3	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	529000000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	3881000000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	1329000000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	1191000000	USD
CY2019Q3	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	545000000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	2956000000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	1648000000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-434000000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-359000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-107000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-447000000	USD
CY2020Q3	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
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	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2294000000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2020Q3	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1125000000	USD
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	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	5622000000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2020Q3	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2019Q3	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	3683000000	USD
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2020Q3	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2019Q3	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1000000000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2020Q3	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
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	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	2300000000	USD
	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2020Q3	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	130000000	USD
CY2019Q3	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	0	USD
	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	1016000000	USD
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CY2020Q3	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13000000	USD
CY2019Q3	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	9000000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	36000000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	29000000	USD
CY2020Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019Q3	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	500000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	451000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1450000000	USD
CY2020Q3	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	59000000	USD
CY2019Q3	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	70000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	295000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	245000000	USD
CY2020Q3	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019Q3	us-gaap	Payments Of Dividends PaymentsOfDividends	96000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	188000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	372000000	USD
CY2020Q3	luv	Payments Of Terminated Interest Rate Derivative Instruments PaymentsOfTerminatedInterestRateDerivativeInstruments	31000000	USD
CY2019Q3	luv	Payments Of Terminated Interest Rate Derivative Instruments PaymentsOfTerminatedInterestRateDerivativeInstruments	0	USD
	luv	Payments Of Terminated Interest Rate Derivative Instruments PaymentsOfTerminatedInterestRateDerivativeInstruments	31000000	USD
	luv	Payments Of Terminated Interest Rate Derivative Instruments PaymentsOfTerminatedInterestRateDerivativeInstruments	0	USD
CY2020Q3	luv	Capitalized Financing Items CapitalizedFinancingItems	44000000	USD
CY2019Q3	luv	Capitalized Financing Items CapitalizedFinancingItems	0	USD
	luv	Capitalized Financing Items CapitalizedFinancingItems	-133000000	USD
	luv	Capitalized Financing Items CapitalizedFinancingItems	0	USD
CY2020Q3	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	20000000	USD
CY2019Q3	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-33000000	USD
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	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-44000000	USD
CY2020Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1242000000	USD
CY2019Q3	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-690000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10199000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2082000000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-242000000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	42000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9561000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	634000000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12351000000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2446000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2548000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1854000000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12109000000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2488000000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12109000000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2488000000	USD
CY2020Q3	us-gaap	Interest Paid Net InterestPaidNet	7000000	USD
CY2019Q3	us-gaap	Interest Paid Net InterestPaidNet	11000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	61000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	59000000	USD
CY2020Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	7000000	USD
CY2019Q3	us-gaap	Income Taxes Paid IncomeTaxesPaid	169000000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	17000000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	487000000	USD
CY2020Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6000000	USD
CY2019Q3	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	692000000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020Q3	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	35000000	USD
CY2019Q3	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	28000000	USD
	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	110000000	USD
	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	73000000	USD
	us-gaap	Basis Of Accounting BasisOfAccounting	BASIS OF PRESENTATIONSouthwest Airlines Co. (the "Company" or "Southwest") operates Southwest Airlines, a major passenger airline that provides scheduled air transportation in the United States and near-international markets. The unaudited Condensed Consolidated Financial Statements include accounts of the Company and its wholly owned subsidiaries.The accompanying unaudited Condensed Consolidated Financial Statements of the Company and its subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States ("GAAP") for complete financial statements. The unaudited Condensed Consolidated Financial Statements for the interim periods ended September 30, 2020 and 2019 include all adjustments which are, in the opinion of management, necessary for a fair presentation of the results for the interim periods. This includes all normal and recurring adjustments and elimination of significant intercompany transactions. Financial results for the Company and airlines in general can be seasonal in nature. In many years, the Company's revenues, as well as its Operating income and Net income, have been better in its second and third fiscal quarters than in its first and fourth fiscal quarters. However, in 2020, as a result of the COVID-19 pandemic, the Company's results were not in line with such historical trends. See Note 2 for further information. Air travel is also significantly impacted by general economic conditions, the amount of disposable income available to consumers, unemployment levels, corporate travel budgets, extreme or severe weather and natural disasters, fears of terrorism or war, and other factors beyond the Company's control. These and other factors, such as the price of jet fuel in some periods, the nature of the Company's fuel hedging program, and the periodic volatility of commodities used by the Company for hedging jet fuel, have created, and may continue to create, significant volatility in the Company's financial results. See Note 4 for further information on fuel and the Company's hedging program. Operating results for the three and nine months ended September 30, 2020, are not necessarily indicative of the results that may be expected for future quarters or for the year ended December 31, 2020. For further information, refer to the Consolidated Financial Statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.
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CY2020Q3	luv	Proceedsfrom Payroll Support Program Grant ProceedsfromPayrollSupportProgramGrant	3400000000	USD
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Received In April2020 ProceedsFromPayrollSupportProgramGrantReceivedInApril2020	1600000000	USD
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Received In May2020 ProceedsFromPayrollSupportProgramGrantReceivedInMay2020	652000000	USD
CY2020Q3	luv	Proceeds From Payroll Support Program Grant Received In July2020 ProceedsFromPayrollSupportProgramGrantReceivedInJuly2020	326000000	USD
CY2020Q3	luv	Proceeds From Payroll Support Program Grant Received In September2020 ProceedsFromPayrollSupportProgramGrantReceivedInSeptember2020	94000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 Participants VoluntarySeparationProgram2020Participants	4200	employees
CY2020Q3	luv	Costs Incurred For Voluntary Separation2020 And Extended Eto CostsIncurredForVoluntarySeparation2020AndExtendedETO	1100000000	USD
CY2020Q3	luv	Proceeds From Payroll Support Program Grant Allocated To Fund Salaries Wages And Benefits ProceedsFromPayrollSupportProgramGrantAllocatedToFundSalariesWagesAndBenefits	1200000000	USD
CY2020Q3	luv	Extended Emergency Time Off Accrual For Employees Who Accepted Through September302020 ExtendedEmergencyTimeOffAccrualForEmployeesWhoAcceptedThroughSeptember302020	613000000	USD
CY2020Q2	luv	Voluntary Separation Program2020 Accrual For Employees Who Accepted Through June302020 VoluntarySeparationProgram2020AccrualForEmployeesWhoAcceptedThroughJune302020	307000000	USD
CY2020Q2	luv	Extended Emergency Time Off Accrual For Employees Who Accepted Through June302020 ExtendedEmergencyTimeOffAccrualForEmployeesWhoAcceptedThroughJune302020	0	USD
CY2020Q2	luv	Voluntary Separation Program2020 And Extended Emergency Time Off Accrual For Employees Who Accepted Through June302020 VoluntarySeparationProgram2020AndExtendedEmergencyTimeOffAccrualForEmployeesWhoAcceptedThroughJune302020	307000000	USD
CY2020Q2	luv	Voluntary Separation Program2020 Total Accrued VoluntarySeparationProgram2020TotalAccrued	307000000	USD
CY2020Q2	luv	Emergency Extended Time Off Total Accrued EmergencyExtendedTimeOffTotalAccrued	0	USD
CY2020Q2	luv	Voluntary Separation Program2020 And Extended Emergency Time Off Total Accrued VoluntarySeparationProgram2020AndExtendedEmergencyTimeOffTotalAccrued	307000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 Accrual For Employees Who Accepted After June302020 VoluntarySeparationProgram2020AccrualForEmployeesWhoAcceptedAfterJune302020	485000000	USD
CY2020Q3	luv	Extended Emergency Time Off Accrual For Employees Who Accepted Through September302020 ExtendedEmergencyTimeOffAccrualForEmployeesWhoAcceptedThroughSeptember302020	613000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 Reduction For Employees Who Accepted After June302020 VoluntarySeparationProgram2020ReductionForEmployeesWhoAcceptedAfterJune302020	-173000000	USD
CY2020Q3	luv	Extended Emergency Time Off Reduction For Employees Who Accepted Through September302020 ExtendedEmergencyTimeOffReductionForEmployeesWhoAcceptedThroughSeptember302020	-25000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 Total Accrued VoluntarySeparationProgram2020TotalAccrued	619000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 And Extended Emergency Time Off Reduction For Employees Who Accepted Through September302020 VoluntarySeparationProgram2020AndExtendedEmergencyTimeOffReductionForEmployeesWhoAcceptedThroughSeptember302020	-198000000	USD
CY2020Q3	luv	Emergency Extended Time Off Total Accrued EmergencyExtendedTimeOffTotalAccrued	588000000	USD
CY2020Q3	luv	Voluntary Separation Program2020 And Extended Emergency Time Off Total Accrued VoluntarySeparationProgram2020AndExtendedEmergencyTimeOffTotalAccrued	1207000000	USD
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CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	109000000	USD
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CY2020Q3	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	53000000	USD
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CY2020Q3	luv	Terminated Interest Rate Swap Liability TerminatedInterestRateSwapLiability	28000000	USD
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CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11000000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2000000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1129000000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	566000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	28000000	USD
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CY2020Q3	luv	Air Traffic Liability Passenger Revenueand Ancillary Passenger Services AirTrafficLiabilityPassengerRevenueandAncillaryPassengerServices	2907000000	USD
CY2019Q4	luv	Air Traffic Liability Passenger Revenueand Ancillary Passenger Services AirTrafficLiabilityPassengerRevenueandAncillaryPassengerServices	2125000000	USD
CY2020Q3	luv	Air Traffic Liability Loyalty Program AirTrafficLiabilityLoyaltyProgram	4187000000	USD
CY2019Q4	luv	Air Traffic Liability Loyalty Program AirTrafficLiabilityLoyaltyProgram	3385000000	USD
CY2020Q3	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	7094000000	USD
CY2019Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5510000000	USD
CY2020Q2	us-gaap	Deferred Revenue DeferredRevenue	3856000000	USD
CY2019Q2	us-gaap	Deferred Revenue DeferredRevenue	3289000000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	3385000000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	3011000000	USD
CY2020Q3	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	447000000	USD
CY2019Q3	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	727000000	USD
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	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	2195000000	USD
CY2020Q3	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-205000000	USD
CY2019Q3	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-657000000	USD
	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-1814000000	USD
CY2020Q3	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-16000000	USD
CY2019Q3	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-20000000	USD
	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-44000000	USD
	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-53000000	USD
CY2020Q3	luv	Unused Funds Converted To Loyalty Points UnusedFundsConvertedToLoyaltyPoints	105000000	USD
CY2019Q3	luv	Unused Funds Converted To Loyalty Points UnusedFundsConvertedToLoyaltyPoints	0	USD
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	luv	Unused Funds Converted To Loyalty Points UnusedFundsConvertedToLoyaltyPoints	0	USD
CY2020Q3	us-gaap	Deferred Revenue DeferredRevenue	4187000000	USD
CY2019Q3	us-gaap	Deferred Revenue DeferredRevenue	3339000000	USD
CY2020Q3	us-gaap	Deferred Revenue DeferredRevenue	4187000000	USD
CY2019Q3	us-gaap	Deferred Revenue DeferredRevenue	3339000000	USD
CY2019Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5510000000	USD
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	luv	Air Traffic Liability Revenuefrom Current Period Sales AirTrafficLiabilityRevenuefromCurrentPeriodSales	-3921000000	USD
CY2020Q3	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	7094000000	USD
CY2018Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5070000000	USD
	luv	Air Traffic Liability Current Period Sales AirTrafficLiabilityCurrentPeriodSales	16410000000	USD
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CY2019Q3	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5966000000	USD
CY2020Q3	luv	Residual Travel Funds ResidualTravelFunds	0.27
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CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-1157000000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2166000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1787000000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	590000000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	533000000	shares
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	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	542000000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1000000	shares
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CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	590000000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	534000000	shares
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CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.96
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
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CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.96
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.89
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CY2020Q3	luv	Required Minimum Liquidity Levelat All Times After March312021 RequiredMinimumLiquidityLevelatAllTimesAfterMarch312021	2500000000	USD
CY2020Q2	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	2000000000.0	USD
CY2020Q2	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	1800000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	80500000	shares
CY2020Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2020Q2	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	28.50
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	543000000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	220000000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	524000000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	1400000000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	152000000	USD
CY2020Q3	luv	Longterm Debtand Capital Lease Obligations Maturities Repaymentsof Principalin Year Six LongtermDebtandCapitalLeaseObligationsMaturitiesRepaymentsofPrincipalinYearSix	4000000000.0	USD
CY2020Q3	luv	Longterm Debtand Capital Lease Obligations Maturities Repaymentsof Principal Thereafter LongtermDebtandCapitalLeaseObligationsMaturitiesRepaymentsofPrincipalThereafter	4500000000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	543000000	USD
CY2020Q3	luv	Debt Agreements Not Publicly Held DebtAgreementsNotPubliclyHeld	4	Loans
CY2020Q3	luv	Trade Receivables TradeReceivables	48000000	USD
CY2019Q4	luv	Trade Receivables TradeReceivables	53000000	USD
CY2020Q3	us-gaap	Credit Card Receivables CreditCardReceivables	46000000	USD
CY2019Q4	us-gaap	Credit Card Receivables CreditCardReceivables	112000000	USD
CY2020Q3	luv	Business Partners And Other Suppliers BusinessPartnersAndOtherSuppliers	466000000	USD
CY2019Q4	luv	Business Partners And Other Suppliers BusinessPartnersAndOtherSuppliers	779000000	USD
CY2020Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	325000000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	87000000	USD
CY2020Q3	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	12000000	USD
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	55000000	USD
CY2020Q3	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	897000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	231000000	USD
CY2020Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	41000000	USD
CY2020Q3	luv	Derivative Asset Fair Value Amount Offset Against Collateral Total DerivativeAssetFairValueAmountOffsetAgainstCollateralTotal	77000000	USD
CY2019Q4	luv	Derivative Asset Fair Value Amount Offset Against Collateral Total DerivativeAssetFairValueAmountOffsetAgainstCollateralTotal	49000000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	295000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	296000000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	307000000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	232000000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	679000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	577000000	USD
CY2020Q3	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	169000000	USD
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	304000000	USD
CY2020Q3	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	184000000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	227000000	USD
CY2020Q3	luv	Aircraft Maintenance Payable AircraftMaintenancePayable	97000000	USD
CY2019Q4	luv	Aircraft Maintenance Payable AircraftMaintenancePayable	162000000	USD
CY2020Q3	luv	Fuel Payable FuelPayable	49000000	USD
CY2019Q4	luv	Fuel Payable FuelPayable	129000000	USD
CY2020Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	0	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	93000000	USD
CY2020Q3	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	440000000	USD
CY2019Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	428000000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	980000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1574000000	USD
CY2020Q3	luv	Extended Emergency Time Off Accrued Liability ExtendedEmergencyTimeOffAccruedLiability	457000000	USD
CY2019Q4	luv	Extended Emergency Time Off Accrued Liability ExtendedEmergencyTimeOffAccruedLiability	0	USD
CY2020Q3	luv	Voluntary Separation Program2020 Accrued Liability VoluntarySeparationProgram2020AccruedLiability	242000000	USD
CY2019Q4	luv	Voluntary Separation Program2020 Accrued Liability VoluntarySeparationProgram2020AccruedLiability	0	USD
CY2020Q3	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	21000000	USD
CY2019Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	695000000	USD
CY2020Q3	us-gaap	Accrued Vacation Current AccruedVacationCurrent	418000000	USD
CY2019Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	434000000	USD
CY2020Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	110000000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	120000000	USD
CY2020Q3	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	158000000	USD
CY2019Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	166000000	USD
CY2020Q3	luv	Accrualfor Propertyand Income Taxes AccrualforPropertyandIncomeTaxes	75000000	USD
CY2019Q4	luv	Accrualfor Propertyand Income Taxes AccrualforPropertyandIncomeTaxes	79000000	USD
CY2020Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	327000000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	250000000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1836000000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1749000000	USD
CY2020Q3	luv	Extended Emergency Time Off Other Noncurrent Liability ExtendedEmergencyTimeOffOtherNoncurrentLiability	131000000	USD
CY2019Q4	luv	Extended Emergency Time Off Other Noncurrent Liability ExtendedEmergencyTimeOffOtherNoncurrentLiability	0	USD
CY2020Q3	luv	Voluntary Separation Program2020 Other Noncurrent Liability VoluntarySeparationProgram2020OtherNoncurrentLiability	377000000	USD
CY2019Q4	luv	Voluntary Separation Program2020 Other Noncurrent Liability VoluntarySeparationProgram2020OtherNoncurrentLiability	0	USD
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	339000000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	288000000	USD
CY2020Q3	us-gaap	Other Deferred Compensation Arrangements Liability Classified Noncurrent OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent	287000000	USD
CY2019Q4	us-gaap	Other Deferred Compensation Arrangements Liability Classified Noncurrent OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent	313000000	USD
CY2020Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	99000000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	105000000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1233000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2020Q3	luv	Assets Constructed For Others AssetsConstructedForOthers	274000000	USD
CY2019Q4	luv	Assets Constructed For Others AssetsConstructedForOthers	164000000	USD
CY2020Q3	luv	Numberof Aircraft Grounded Under Emergency Order NumberofAircraftGroundedUnderEmergencyOrder	34
CY2020Q3	luv	After Tax Potential Concessionsand Other Considerations Announced July2019 AfterTaxPotentialConcessionsandOtherConsiderationsAnnouncedJuly2019	4900000000	USD
CY2020Q3	luv	Pre Tax Potential Concessionsand Other Considerations Announced January2020 PreTaxPotentialConcessionsandOtherConsiderationsAnnouncedJanuary2020	2600000000	USD
CY2020Q3	luv	Numberof Aircraft Grounded Under Emergency Order NumberofAircraftGroundedUnderEmergencyOrder	34
CY2020Q3	luv	Numberof Aircraft Not Delivered Dueto Grounding Under Emergency Order NumberofAircraftNotDeliveredDuetoGroundingUnderEmergencyOrder	41	aircraft
	luv	Supplier Proceeds SupplierProceeds	-428000000	USD

Files In Submission

Name	View Source	Status
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$LUV
SOUTHWEST AIRLINES CO Stock $luv

2020 Q4 Form 10-Q Financial Statement

#000009238020000145 Filed on October 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LUV SOUTHWEST AIRLINES CO Stock $luv

2020 Q4 Form 10-Q Financial Statement

#000009238020000145 Filed on October 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LUV
SOUTHWEST AIRLINES CO Stock $luv