$LUV
SOUTHWEST AIRLINES CO Stock $luv

$luv Overview Financials Valuation SEC Filings Company Website

2020 Q2 Form 10-Q Financial Statement

#000009238020000122 Filed on July 27, 2020

Income Statement

Concept	2020 Q2	2019 Q2	2019 Q1
Revenue	$1.008B	$5.909B	$5.149B
YoY Change	-82.94%	2.91%	4.15%
Cost Of Revenue	$532.0M	$1.493B	$1.348B
YoY Change	-64.37%	-5.86%	-2.88%
Gross Profit	$476.0M	$4.416B	$3.801B
YoY Change	-89.22%	6.26%	6.89%
Gross Profit Margin	47.22%	74.73%	73.82%
Selling, General & Admin	$1.854B	$2.423B	$2.270B
YoY Change	-23.48%	10.09%	9.24%
% of Gross Profit	389.5%	54.87%	59.72%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$313.0M	$301.0M	$297.0M
YoY Change	3.99%	3.08%	7.22%
% of Gross Profit	65.76%	6.82%	7.81%
Operating Expenses	$2.609B	$4.941B	$4.644B
YoY Change	-47.2%	3.58%	7.3%
Operating Profit	-$1.127B	$968.0M	$505.0M
YoY Change	-216.43%	-0.41%	-18.02%
Interest Expense	-$80.00M	$31.00M	$31.00M
YoY Change	-358.06%	-6.06%	-3.13%
% of Operating Profit		3.2%	6.14%
Other Income/Expense, Net	-$112.0M	$0.00	-$1.000M
YoY Change		-100.0%	-92.86%
Pretax Income	-$1.239B	$968.0M	$504.0M
YoY Change	-228.0%	0.83%	-16.28%
Income Tax	-$324.0M	$227.0M	$117.0M
% Of Pretax Income		23.45%	23.21%
Net Earnings	-$915.0M	$741.0M	$387.0M
YoY Change	-223.48%	1.09%	-16.41%
Net Earnings / Revenue	-90.77%	12.54%	7.52%
Basic Earnings Per Share	-$1.63	$1.37	$0.70
Diluted Earnings Per Share	-$1.63	$1.37	$0.70
COMMON SHARES
Basic Shares Outstanding	563.0M shares	542.0M shares	551.0M shares
Diluted Shares Outstanding	563.0M shares	542.0M shares	552.0M shares

Balance Sheet

Concept	2020 Q2	2019 Q2	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$14.46B	$3.986B	$3.861B
YoY Change	262.69%	8.14%	19.06%
Cash & Equivalents	$12.35B	$2.446B	$2.344B
Short-Term Investments	$2.106B	$1.540B	$1.517B
Other Short-Term Assets	$223.0M	$281.0M	$354.0M
YoY Change	-20.64%	-43.57%	-20.98%
Inventory	$422.0M	$510.0M	$484.0M
Prepaid Expenses
Receivables	$480.0M	$777.0M	$784.0M
Other Receivables	$21.00M	$0.00	$0.00
Total Short-Term Assets	$15.87B	$5.554B	$5.483B
YoY Change	185.78%	2.7%	14.21%
LONG-TERM ASSETS
Property, Plant & Equipment	$16.25B	$17.73B	$17.77B
YoY Change	-8.38%	-6.99%	-5.33%
Goodwill	$970.0M	$970.0M	$970.0M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$295.0M	$312.0M	$313.0M
YoY Change	-5.45%	-23.15%	-23.66%
Long-Term Investments
YoY Change
Other Assets	$662.0M	$693.0M	$725.0M
YoY Change	-4.47%	-32.13%	-24.4%
Total Long-Term Assets	$19.72B	$20.82B	$20.98B
YoY Change	-5.26%	-1.13%	1.32%
TOTAL ASSETS
Total Short-Term Assets	$15.87B	$5.554B	$5.483B
Total Long-Term Assets	$19.72B	$20.82B	$20.98B
Total Assets	$35.60B	$26.37B	$26.46B
YoY Change	34.97%	-0.34%	3.75%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$970.0M	$1.330B	$1.412B
YoY Change	-27.07%	-0.6%	13.6%
Accrued Expenses	$2.372B	$1.315B	$1.350B
YoY Change	80.38%	-3.38%	19.05%
Deferred Revenue	$4.988B
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$695.0M	$654.0M	$571.0M
YoY Change	6.27%	79.18%	56.44%
Total Short-Term Liabilities	$9.361B	$8.611B	$8.723B
YoY Change	8.71%	11.6%	21.8%
LONG-TERM LIABILITIES
Long-Term Debt	$8.905B	$2.449B	$2.602B
YoY Change	263.62%	-23.94%	-21.2%
Other Long-Term Liabilities	$722.0M	$639.0M	$608.0M
YoY Change	12.99%	-7.66%	-13.88%
Total Long-Term Liabilities	$722.0M	$639.0M	$608.0M
YoY Change	12.99%	-7.66%	-13.88%
TOTAL LIABILITIES
Total Short-Term Liabilities	$9.361B	$8.611B	$8.723B
Total Long-Term Liabilities	$722.0M	$639.0M	$608.0M
Total Liabilities	$10.08B	$9.250B	$9.331B
YoY Change	9.01%	10.01%	18.59%
SHAREHOLDERS EQUITY
Retained Earnings	$16.84B	$16.96B	$16.32B
YoY Change	-0.71%	14.01%	14.62%
Common Stock	$5.047B	$2.342B	$2.321B
YoY Change	115.5%	2.85%	2.7%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.88B	$9.394B	$8.946B
YoY Change	15.83%	25.99%	28.59%
Treasury Stock Shares
Shareholders Equity	$10.88B	$9.940B	$9.791B
YoY Change
Total Liabilities & Shareholders Equity	$35.60B	$26.37B	$26.46B
YoY Change	34.97%	-0.34%	3.75%

Cashflow Statement

Concept	2020 Q2	2019 Q2	2019 Q1
OPERATING ACTIVITIES
Net Income	-$915.0M	$741.0M	$387.0M
YoY Change	-223.48%	1.09%	-16.41%
Depreciation, Depletion And Amortization	$313.0M	$301.0M	$297.0M
YoY Change	3.99%	3.08%	7.22%
Cash From Operating Activities	$897.0M	$966.0M	$1.105B
YoY Change	-7.14%	-40.77%	10.28%
INVESTING ACTIVITIES
Capital Expenditures	-$112.0M	-$230.0M	-$160.0M
YoY Change	-51.3%	-57.17%	-63.05%
Acquisitions
YoY Change
Other Investing Activities	$444.0M	-$21.00M	$324.0M
YoY Change	-2214.29%	-86.54%	-10.0%
Cash From Investing Activities	$332.0M	-$252.0M	$164.0M
YoY Change	-231.75%	-63.69%	-324.66%
FINANCING ACTIVITIES
Cash Dividend Paid	$0.00	$98.00M	$178.0M
YoY Change	-100.0%	5.38%	20.27%
Common Stock Issuance & Retirement, Net	-$2.294B	$450.0M	$500.0M
YoY Change	-609.78%	-10.0%	0.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$7.182B	-$612.0M	-$779.0M
YoY Change	-1273.53%	-5.12%	29.4%
NET CHANGE
Cash From Operating Activities	$897.0M	$966.0M	$1.105B
Cash From Investing Activities	$332.0M	-$252.0M	$164.0M
Cash From Financing Activities	$7.182B	-$612.0M	-$779.0M
Net Change In Cash	$8.411B	$102.0M	$490.0M
YoY Change	8146.08%	-65.07%	49.85%
FREE CASH FLOW
Cash From Operating Activities	$897.0M	$966.0M	$1.105B
Capital Expenditures	-$112.0M	-$230.0M	-$160.0M
Free Cash Flow	$1.009B	$1.196B	$1.265B
YoY Change	-15.64%	-44.83%	-11.85%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
CY2020Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	589872108	shares
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.180
	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	Q2
CY2019Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.160
CY2019Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.180
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Received In June2020 ProceedsFromPayrollSupportProgramGrantReceivedInJune2020	652000000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	8000000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1000000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-1000000	USD
	dei	Entity Shell Company EntityShellCompany	false
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	4000000	USD
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-06-30
	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
CY2020Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	589872108	shares
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12351000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2548000000	USD
CY2020Q2	us-gaap	Short Term Investments ShortTermInvestments	2106000000	USD
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	1524000000	USD
CY2020Q2	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	770000000	USD
CY2020Q2	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	770000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2020Q2	us-gaap	Airline Related Inventory AirlineRelatedInventory	422000000	USD
CY2019Q4	us-gaap	Airline Related Inventory AirlineRelatedInventory	529000000	USD
CY2020Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	223000000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	287000000	USD
CY2020Q2	us-gaap	Assets Current AssetsCurrent	15872000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	5974000000	USD
CY2020Q2	us-gaap	Flight Equipment Gross FlightEquipmentGross	20943000000	USD
CY2019Q4	us-gaap	Flight Equipment Gross FlightEquipmentGross	21629000000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	5923000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	5672000000	USD
CY2020Q2	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	306000000	USD
CY2019Q4	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	248000000	USD
CY2020Q2	luv	Assets Constructed For Others AssetsConstructedForOthers	239000000	USD
CY2019Q4	luv	Assets Constructed For Others AssetsConstructedForOthers	164000000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	27411000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	27713000000	USD
CY2020Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	11164000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10688000000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	16247000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17025000000	USD
CY2020Q2	us-gaap	Goodwill Goodwill	970000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	970000000	USD
CY2020Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1845000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	353000000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4988000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4457000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	695000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	819000000	USD
CY2020Q2	us-gaap	Liabilities Current LiabilitiesCurrent	9361000000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	8952000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8905000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1846000000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1891000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1053000000	USD
CY2020Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2114000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2364000000	USD
CY2020Q2	luv	Construction Obligation Noncurrent ConstructionObligationNoncurrent	239000000	USD
CY2019Q4	luv	Construction Obligation Noncurrent ConstructionObligationNoncurrent	164000000	USD
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1486000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	978000000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	722000000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	722000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2020Q2	us-gaap	Common Stock Value CommonStockValue	888000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	808000000	USD
CY2020Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4159000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1581000000	USD
CY2020Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	16842000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	17945000000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-130000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-61000000	USD
CY2020Q2	us-gaap	Treasury Stock Value TreasuryStockValue	10881000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10441000000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	10878000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	9832000000	USD
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	35596000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	25895000000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1008000000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5909000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5242000000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11059000000	USD
CY2020Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1714000000	USD
CY2019Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2068000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	3568000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4043000000	USD
CY2020Q2	luv	Payroll Support Voluntary Separation Net PayrollSupportVoluntarySeparationNet	-784000000	USD
CY2020Q2	luv	Payroll Support Voluntary Separation Net PayrollSupportVoluntarySeparationNet	-784000000	USD
CY2019Q2	luv	Payroll Support Voluntary Separation Net PayrollSupportVoluntarySeparationNet	0	USD
	luv	Payroll Support Voluntary Separation Net PayrollSupportVoluntarySeparationNet	-784000000	USD
	luv	Payroll Support Voluntary Separation Net PayrollSupportVoluntarySeparationNet	0	USD
CY2020Q2	us-gaap	Fuel Costs FuelCosts	257000000	USD
CY2019Q2	us-gaap	Fuel Costs FuelCosts	1136000000	USD
	us-gaap	Fuel Costs FuelCosts	1128000000	USD
	us-gaap	Fuel Costs FuelCosts	2152000000	USD
CY2020Q2	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	140000000	USD
CY2019Q2	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	310000000	USD
	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	412000000	USD
	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	603000000	USD
CY2020Q2	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	275000000	USD
CY2019Q2	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	357000000	USD
	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	614000000	USD
	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	691000000	USD
CY2020Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	313000000	USD
CY2019Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	302000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	624000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1349000000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	662000000	USD
CY2020Q2	us-gaap	Other Assets OtherAssets	662000000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	577000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	577000000	USD
CY2020Q2	us-gaap	Assets Assets	35596000000	USD
CY2019Q4	us-gaap	Assets Assets	25895000000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	970000000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	970000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1574000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1574000000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2372000000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2372000000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1749000000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1749000000	USD
CY2020Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	336000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	598000000	USD
CY2020Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	220000000	USD
CY2019Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	768000000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	917000000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1499000000	USD
CY2020Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	2135000000	USD
CY2019Q2	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	4941000000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	6479000000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	9586000000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-1127000000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	968000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1237000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1473000000	USD
CY2020Q2	us-gaap	Interest Costs Incurred InterestCostsIncurred	96000000	USD
CY2019Q2	us-gaap	Interest Costs Incurred InterestCostsIncurred	31000000	USD
	us-gaap	Interest Costs Incurred InterestCostsIncurred	124000000	USD
CY2020Q2	luv	Percentageofactualconsumptionhedged Percentageofactualconsumptionhedged	0.95
	us-gaap	Interest Costs Incurred InterestCostsIncurred	61000000	USD
CY2020Q2	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	7000000	USD
CY2019Q2	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	9000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	12000000	USD
	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	17000000	USD
CY2020Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000000	USD
CY2019Q2	us-gaap	Investment Income Interest InvestmentIncomeInterest	24000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	26000000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	47000000	USD
CY2020Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-32000000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-60000000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4000000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-112000000	USD
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	0	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-146000000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1000000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1239000000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	968000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1383000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1472000000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-324000000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	227000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-374000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	344000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-915000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	741000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1009000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1128000000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.63
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.37
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.87
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	2.06
CY2020Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.63
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.37
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.87
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	2.06
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-859000000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	675000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1078000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1078000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1138000000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	563000000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	542000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	539000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	547000000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	563000000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	542000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	539000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	547000000	shares
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	9832000000	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	451000000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2000000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	9000000	USD
CY2020Q1	us-gaap	Dividends Cash DividendsCash	94000000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-219000000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	9075000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2224000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	13000000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2000000	USD
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
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	9853000000	USD
CY2018Q4	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	55000000	USD
	luv	Percentageofactualconsumptionhedged Percentageofactualconsumptionhedged	0.79
CY2019Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	500000000	USD
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
CY2019Q1	us-gaap	Dividends Cash DividendsCash	89000000	USD
CY2019Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	463000000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	9791000000	USD
CY2019Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	450000000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	10000000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13000000	USD
CY2019Q2	us-gaap	Dividends Cash DividendsCash	99000000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	675000000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	9940000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-915000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	741000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1009000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1128000000	USD
CY2020Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	313000000	USD
CY2019Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	302000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	624000000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	598000000	USD
CY2020Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-6000000	USD
CY2019Q2	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-8000000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0	USD
CY2020Q2	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	181000000	USD
CY2019Q2	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-36000000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	230000000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-50000000	USD
CY2020Q2	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-222000000	USD
CY2019Q2	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
CY2020Q2	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	119000000	USD
CY2019Q2	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-18000000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-64000000	USD
	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	204000000	USD
CY2020Q2	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-224000000	USD
CY2019Q2	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-86000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-282000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-115000000	USD
CY2020Q2	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1200000000	USD
CY2019Q2	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-89000000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-90000000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-346000000	USD
CY2020Q2	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	667000000	USD
CY2019Q2	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-30000000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1368000000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	914000000	USD
CY2020Q2	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-74000000	USD
CY2019Q2	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-54000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-206000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-123000000	USD
CY2020Q2	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	12000000	USD
CY2019Q2	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	-15000000	USD
	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	7000000	USD
	us-gaap	Increase Decrease Cash Collateral From Counterparties IncreaseDecreaseCashCollateralFromCounterparties	0	USD
CY2020Q2	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-14000000	USD
CY2019Q2	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-29000000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-76000000	USD
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-61000000	USD
CY2020Q2	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	897000000	USD
CY2019Q2	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	966000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	520000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2071000000	USD
CY2020Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	113000000	USD
CY2019Q2	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	230000000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	336000000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	390000000	USD
CY2020Q2	luv	Supplier Proceeds SupplierProceeds	-128000000	USD
CY2019Q2	luv	Supplier Proceeds SupplierProceeds	0	USD
	luv	Supplier Proceeds SupplierProceeds	-428000000	USD
	luv	Supplier Proceeds SupplierProceeds	0	USD
CY2020Q2	luv	Sale Leaseback Cash Proceeds Investing SaleLeasebackCashProceedsInvesting	815000000	USD
CY2019Q2	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
CY2020Q2	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	1316000000	USD
CY2019Q2	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	550000000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	2345000000	USD
	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	800000000	USD
CY2020Q2	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	818000000	USD
CY2019Q2	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	528000000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	1765000000	USD
	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	1103000000	USD
CY2020Q2	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	332000000	USD
CY2019Q2	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-252000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	327000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-87000000	USD
CY2020Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2294000000	USD
CY2019Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2294000000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2020Q2	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	3997000000	USD
CY2019Q2	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	4497000000	USD
	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2020Q2	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	2683000000	USD
CY2019Q2	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
CY2020Q2	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2019Q2	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
CY2020Q2	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	2300000000	USD
CY2019Q2	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	2300000000	USD
	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2020Q2	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	885000000	USD
CY2019Q2	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	0	USD
	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	885000000	USD
	luv	Proceeds From Payroll Support Program Loans And Warrants ProceedsFromPayrollSupportProgramLoansAndWarrants	0	USD
CY2020Q2	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13000000	USD
CY2019Q2	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	10000000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	24000000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	20000000	USD
CY2020Q2	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019Q2	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	450000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	451000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	950000000	USD
CY2020Q2	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	159000000	USD
CY2019Q2	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	75000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	237000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	175000000	USD
CY2020Q2	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2019Q2	us-gaap	Payments Of Dividends PaymentsOfDividends	98000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	188000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	276000000	USD
CY2020Q2	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	171000000	USD
CY2019Q2	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	0	USD
	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	176000000	USD
	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	0	USD
CY2020Q2	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	23000000	USD
CY2019Q2	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	8000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-11000000	USD
CY2020Q2	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	7182000000	USD
CY2019Q2	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-612000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	8956000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1392000000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	8411000000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	102000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9803000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	592000000	USD
CY2020Q2	luv	Percent Of Proceeds From Payroll Support Program Grant Received PercentOfProceedsFromPayrollSupportProgramGrantReceived	0.90
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3940000000	USD
CY2019Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2344000000	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
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
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
CY2020Q2	us-gaap	Interest Paid Net InterestPaidNet	40000000	USD
CY2019Q2	us-gaap	Interest Paid Net InterestPaidNet	33000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	54000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	48000000	USD
CY2020Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	5000000	USD
CY2019Q2	us-gaap	Income Taxes Paid IncomeTaxesPaid	314000000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	10000000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	318000000	USD
CY2020Q2	luv	Unsecured Term Loan Through Payroll Support Programof Cares Act UnsecuredTermLoanThroughPayrollSupportProgramofCARESAct	459000000	USD
CY2020Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	36.47
CY2020Q2	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	661000000	USD
CY2019Q2	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	686000000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2020Q2	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	41000000	USD
CY2019Q2	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	24000000	USD
	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	75000000	USD
	luv	Assets Constructedfor Others During Period AssetsConstructedforOthersDuringPeriod	45000000	USD
	us-gaap	Basis Of Accounting BasisOfAccounting	BASIS OF PRESENTATION<div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">Southwest 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.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">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 June 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</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">Note 4 for further information on fuel and the Company's hedging program. Operating results for the three and six months ended</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;">June 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. </span></div>Certain prior period amounts have been reclassified to conform to the current presentation. In the Consolidated Statement of Cash Flows for the six months ended June 30, 2020, the Company has reclassified debt issuance costs of $5 million from Other, net, within the financing activities section to Capitalized financing costs.
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5000000	USD
	luv	Cash Raised Net Of Fees CashRaisedNetOfFees	17300000000	USD
CY2020Q2	luv	Total Expected Receiptsof Relief Through Payroll Support Programof Cares Act TotalExpectedReceiptsofReliefThroughPayrollSupportProgramofCARESAct	3300000000	USD
CY2020Q2	luv	Proceedsfrom Payroll Support Program Grant ProceedsfromPayrollSupportProgramGrant	2900000000	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
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Allocated To Payroll Support Voluntary Separation Net ProceedsFromPayrollSupportProgramGrantAllocatedToPayrollSupportVoluntarySeparationNet	1100000000	USD
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Remaining To Be Allocated To Payroll Support Voluntary Separation Net ProceedsFromPayrollSupportProgramGrantRemainingToBeAllocatedToPayrollSupportVoluntarySeparationNet	957000000	USD
CY2020Q2	luv	Percent Of Proceeds From Payroll Support Program Grant Remaining To Be Allocated PercentOfProceedsFromPayrollSupportProgramGrantRemainingToBeAllocated	0.10
CY2020Q2	luv	Proceeds From Payroll Support Program Grant To Be Received In July2020 ProceedsFromPayrollSupportProgramGrantToBeReceivedInJuly2020	326000000	USD
CY2020Q2	luv	Unsecured Term Loan To Be Issued Through Payroll Support Program Of Cares Act UnsecuredTermLoanToBeIssuedThroughPayrollSupportProgramOfCARESAct	98000000	USD
CY2020Q2	luv	Expected Eligibility Amountfor Secured Loans Through Cares Act ExpectedEligibilityAmountforSecuredLoansThroughCARESAct	2800000000	USD
CY2020Q2	luv	Voluntary Separation Program2020 Participants VoluntarySeparationProgram2020Participants	4200	employees
CY2020Q2	luv	Voluntary Separation Program2020 Accrual For Employees Who Accepted Through June302020 VoluntarySeparationProgram2020AccrualForEmployeesWhoAcceptedThroughJune302020	307000000	USD
CY2020Q2	us-gaap	Goodwill Goodwill	970000000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.270
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.234
CY2020Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	109000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	112000000	USD
CY2020Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	74000000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	6000000	USD
CY2020Q2	us-gaap	Deferred Gain Loss On Discontinuation Of Interest Rate Fair Value Hedge DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge	18000000	USD
CY2019Q2	us-gaap	Deferred Gain Loss On Discontinuation Of Interest Rate Fair Value Hedge DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge	19000000	USD
CY2020Q2	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	63000000	USD
CY2020Q2	luv	Terminated Interest Rate Swap Liability TerminatedInterestRateSwapLiability	31000000	USD
CY2020Q2	luv	Maximum Sum Of Derivatives Of Counterparty To Be Included In Other MaximumSumOfDerivativesOfCounterpartyToBeIncludedInOther	8000000	USD
CY2020Q2	luv	Letterof Credit Percentof Collateral LetterofCreditPercentofCollateral	1
CY2020Q2	luv	Cash Collateral Percent Of Fair Value Fuel Derivatives Contracts CashCollateralPercentOfFairValueFuelDerivativesContracts	1
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-915000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	741000000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	25000000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	5000000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	56000000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-66000000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-859000000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	675000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1009000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1128000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	16000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-69000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1078000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1078000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1138000000	USD
CY2020Q2	luv	Air Traffic Liability Passenger Revenueand Ancillary Passenger Services AirTrafficLiabilityPassengerRevenueandAncillaryPassengerServices	3023000000	USD
CY2019Q4	luv	Air Traffic Liability Passenger Revenueand Ancillary Passenger Services AirTrafficLiabilityPassengerRevenueandAncillaryPassengerServices	2125000000	USD
CY2020Q2	luv	Air Traffic Liability Loyalty Program AirTrafficLiabilityLoyaltyProgram	3856000000	USD
CY2019Q4	luv	Air Traffic Liability Loyalty Program AirTrafficLiabilityLoyaltyProgram	3385000000	USD
CY2020Q2	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	6879000000	USD
CY2019Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5510000000	USD
CY2020Q1	us-gaap	Deferred Revenue DeferredRevenue	3561000000	USD
CY2019Q1	us-gaap	Deferred Revenue DeferredRevenue	3171000000	USD
CY2019Q4	us-gaap	Deferred Revenue DeferredRevenue	3385000000	USD
CY2018Q4	us-gaap	Deferred Revenue DeferredRevenue	3011000000	USD
CY2020Q2	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	385000000	USD
CY2019Q2	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	757000000	USD
	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	1041000000	USD
	luv	Revenue Amounts Deferred Associated With Points Awarded RevenueAmountsDeferredAssociatedWithPointsAwarded	1468000000	USD
CY2020Q2	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-81000000	USD
CY2019Q2	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-622000000	USD
	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-542000000	USD
	luv	Passenger Revenue Recognized From Points Redeemed PassengerRevenueRecognizedFromPointsRedeemed	-1158000000	USD
CY2020Q2	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-9000000	USD
CY2019Q2	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-17000000	USD
	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-28000000	USD
	luv	Other Revenue Recognized From Points Redeemed OtherRevenueRecognizedFromPointsRedeemed	-32000000	USD
CY2020Q2	us-gaap	Deferred Revenue DeferredRevenue	3856000000	USD
CY2019Q2	us-gaap	Deferred Revenue DeferredRevenue	3289000000	USD
CY2020Q2	us-gaap	Deferred Revenue DeferredRevenue	3856000000	USD
CY2019Q2	us-gaap	Deferred Revenue DeferredRevenue	3289000000	USD
CY2019Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5510000000	USD
	luv	Air Traffic Liability Current Period Sales AirTrafficLiabilityCurrentPeriodSales	5946000000	USD
	luv	Air Traffic Liability Revenueamountsinbeginningbalance AirTrafficLiabilityRevenueamountsinbeginningbalance	-1936000000	USD
	luv	Air Traffic Liability Revenuefrom Current Period Sales AirTrafficLiabilityRevenuefromCurrentPeriodSales	-2641000000	USD
CY2020Q2	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	6879000000	USD
CY2018Q4	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5070000000	USD
	luv	Air Traffic Liability Current Period Sales AirTrafficLiabilityCurrentPeriodSales	11178000000	USD
	luv	Air Traffic Liability Revenueamountsinbeginningbalance AirTrafficLiabilityRevenueamountsinbeginningbalance	-2855000000	USD
	luv	Air Traffic Liability Revenuefrom Current Period Sales AirTrafficLiabilityRevenuefromCurrentPeriodSales	-7409000000	USD
CY2019Q2	luv	Air Traffic Liability Total AirTrafficLiabilityTotal	5984000000	USD
CY2020Q2	luv	Residual Travel Funds ResidualTravelFunds	0.28
CY2019Q4	luv	Residual Travel Funds ResidualTravelFunds	0.01
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-915000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	741000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1009000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1128000000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	563000000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	542000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	539000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	547000000	shares
CY2020Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.63
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.37
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.87
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	2.06
CY2020Q2	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
CY2020Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2200000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	596000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	195000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	499000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	1400000000	USD
CY2020Q2	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	127000000	USD
CY2020Q2	luv	Longterm Debtand Capital Lease Obligations Maturities Repaymentsof Principalin Year Six LongtermDebtandCapitalLeaseObligationsMaturitiesRepaymentsofPrincipalinYearSix	3700000000	USD
CY2020Q2	luv	Longterm Debtand Capital Lease Obligations Maturities Repaymentsof Principal Thereafter LongtermDebtandCapitalLeaseObligationsMaturitiesRepaymentsofPrincipalThereafter	3700000000	USD
CY2020Q2	luv	Trade Receivables TradeReceivables	46000000	USD
CY2019Q4	luv	Trade Receivables TradeReceivables	53000000	USD
CY2020Q2	us-gaap	Credit Card Receivables CreditCardReceivables	38000000	USD
CY2019Q4	us-gaap	Credit Card Receivables CreditCardReceivables	112000000	USD
CY2020Q2	luv	Business Partners And Other Suppliers BusinessPartnersAndOtherSuppliers	434000000	USD
CY2019Q4	luv	Business Partners And Other Suppliers BusinessPartnersAndOtherSuppliers	779000000	USD
CY2020Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	231000000	USD
CY2019Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	87000000	USD
CY2020Q2	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	21000000	USD
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	55000000	USD
CY2020Q2	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	770000000	USD
CY2020Q2	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	770000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2019Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	1086000000	USD
CY2020Q2	luv	Derivative Asset Fair Value Amount Offset Against Collateral Total DerivativeAssetFairValueAmountOffsetAgainstCollateralTotal	68000000	USD
CY2019Q4	luv	Derivative Asset Fair Value Amount Offset Against Collateral Total DerivativeAssetFairValueAmountOffsetAgainstCollateralTotal	49000000	USD
CY2020Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	295000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	296000000	USD
CY2020Q2	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	299000000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	232000000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	662000000	USD
CY2020Q2	us-gaap	Other Assets OtherAssets	662000000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	577000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	577000000	USD
CY2020Q2	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	139000000	USD
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	304000000	USD
CY2020Q2	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	207000000	USD
CY2019Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	231000000	USD
CY2020Q2	us-gaap	Taxes Payable Current TaxesPayableCurrent	38000000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	227000000	USD
CY2020Q2	luv	Aircraft Maintenance Payable AircraftMaintenancePayable	129000000	USD
CY2019Q4	luv	Aircraft Maintenance Payable AircraftMaintenancePayable	162000000	USD
CY2020Q2	luv	Fuel Payable FuelPayable	68000000	USD
CY2019Q4	luv	Fuel Payable FuelPayable	129000000	USD
CY2020Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	0	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	93000000	USD
CY2020Q2	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	389000000	USD
CY2019Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	428000000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	970000000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	970000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1574000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1574000000	USD
CY2020Q2	luv	Proceeds From Payroll Support Program Grant Remaining To Be Allocated To Payroll Support Voluntary Separation Net ProceedsFromPayrollSupportProgramGrantRemainingToBeAllocatedToPayrollSupportVoluntarySeparationNet	957000000	USD
CY2019Q4	luv	Proceeds From Payroll Support Program Grant Remaining To Be Allocated To Payroll Support Voluntary Separation Net ProceedsFromPayrollSupportProgramGrantRemainingToBeAllocatedToPayrollSupportVoluntarySeparationNet	0	USD
CY2020Q2	luv	Voluntary Separation Program2020 Accrued Liability VoluntarySeparationProgram2020AccruedLiability	307000000	USD
CY2019Q4	luv	Voluntary Separation Program2020 Accrued Liability VoluntarySeparationProgram2020AccruedLiability	0	USD
CY2020Q2	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	26000000	USD
CY2019Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	695000000	USD
CY2020Q2	us-gaap	Accrued Vacation Current AccruedVacationCurrent	454000000	USD
CY2019Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	434000000	USD
CY2020Q2	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	104000000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	120000000	USD
CY2020Q2	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	159000000	USD
CY2019Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	166000000	USD
CY2020Q2	luv	Accrualfor Propertyand Income Taxes AccrualforPropertyandIncomeTaxes	72000000	USD
CY2019Q4	luv	Accrualfor Propertyand Income Taxes AccrualforPropertyandIncomeTaxes	79000000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	233000000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	250000000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2372000000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2372000000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1749000000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1749000000	USD
CY2020Q2	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	299000000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	288000000	USD
CY2020Q2	us-gaap	Other Deferred Compensation Arrangements Liability Classified Noncurrent OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent	315000000	USD
CY2019Q4	us-gaap	Other Deferred Compensation Arrangements Liability Classified Noncurrent OtherDeferredCompensationArrangementsLiabilityClassifiedNoncurrent	313000000	USD
CY2020Q2	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	108000000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	105000000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	722000000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	722000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	706000000	USD
CY2020Q2	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	-222000000	USD
CY2020Q2	luv	Assets Constructed For Others AssetsConstructedForOthers	239000000	USD
CY2019Q4	luv	Assets Constructed For Others AssetsConstructedForOthers	164000000	USD
CY2020Q2	luv	Numberof Aircraft Grounded Under Emergency Order NumberofAircraftGroundedUnderEmergencyOrder	34
CY2020Q2	luv	After Tax Potential Concessionsand Other Considerations Announced July2019 AfterTaxPotentialConcessionsandOtherConsiderationsAnnouncedJuly2019	4900000000	USD
CY2020Q2	luv	Pre Tax Potential Concessionsand Other Considerations Announced January2020 PreTaxPotentialConcessionsandOtherConsiderationsAnnouncedJanuary2020	2600000000	USD
CY2020Q2	luv	Numberof Aircraft Grounded Under Emergency Order NumberofAircraftGroundedUnderEmergencyOrder	34
CY2020Q2	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
0000092380-20-000122-index-headers.html	Edgar Link	pending
0000092380-20-000122-index.html	Edgar Link	pending
0000092380-20-000122.txt	Edgar Link	pending
0000092380-20-000122-xbrl.zip	Edgar Link	pending
exhibit101boeingapplic.htm	Edgar Link	pending
exhibit102boeingdelive.htm	Edgar Link	pending
exhibit103boeingcustom.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
image011.jpg	Edgar Link	pending
image012.jpg	Edgar Link	pending
image211.jpg	Edgar Link	pending
luv-20200630.htm	Edgar Link	pending
luv-20200630.xsd	Edgar Link	pending
luv-20200630_cal.xml	Edgar Link	unprocessable
luv-20200630_def.xml	Edgar Link	unprocessable
luv-20200630_g1.jpg	Edgar Link	pending
luv-20200630_htm.xml	Edgar Link	completed
luv-20200630_lab.xml	Edgar Link	unprocessable
luv-20200630_pre.xml	Edgar Link	unprocessable
luv-6302020xex311.htm	Edgar Link	pending
luv-6302020xex312.htm	Edgar Link	pending
luv-6302020xex321.htm	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
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.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

$LUV
SOUTHWEST AIRLINES CO Stock $luv

2020 Q2 Form 10-Q Financial Statement

#000009238020000122 Filed on July 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LUV SOUTHWEST AIRLINES CO Stock $luv

2020 Q2 Form 10-Q Financial Statement

#000009238020000122 Filed on July 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LUV
SOUTHWEST AIRLINES CO Stock $luv