Commitments and Contingencies Disclosure [Abstract]
Unrecorded Unconditional Purchase Obligation [Table]
Unrecorded Unconditional Purchase Obligation [Table]
Aircraft Type [Axis]
Aircraft Type [Axis]
Aircraft [Domain]
Aircraft [Domain]
B-737-8 MAX
B-737-8MAX [Member]
B737-8MAX
B-737-7 MAX
B-737-Max [Member]
B-737-800
B-737-800 [Member]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation [Line Items]
Aircraft Purchase Commitments, Minimum Quantity Required
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required
Aircraft Purchase Commitments - Options
Long Term Purchase Commitments Options 737 Mx
The amount the company has an option to purchase within the contractual purchase commitment.
Earnings Per Share [Abstract]
NET INCOME (LOSS) PER SHARE
Earnings Per Share [Text Block]
Revenue Recognition and Deferred Revenue [Abstract]
Air Traffic Liability Roll Forward
AirTrafficLiabilityRollForward [Roll Forward]
Air Traffic Liability Roll Forward
ATL, beginning balance
AirTrafficLiabilityTotal
Air Traffic Liability Total
Current Period Sales
Air Traffic Liability - Current Period Sales
Current Period Sales
Revenue amounts in beginning balance
Air Traffic Liability - Revenue amounts in beginning balance
Air Traffic Liability - Revenue amounts in beginning balance
Revenue from Current Period Sales
Air Traffic Liability - Revenue from Current Period Sales
Air Traffic Liability - Revenue from Current Period Sales
ATL, ending balance
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Short-term investments
Short-term Investments
Accounts and other receivables
Accounts and Other Receivables, Net, Current
Inventories of parts and supplies, at cost
Airline Related Inventory, Gross
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property and equipment, at cost:
Property, Plant and Equipment, Net [Abstract]
Flight equipment
Flight Equipment, Gross
Ground property and equipment
Property, Plant and Equipment, Other, Gross
Deposits on flight equipment purchase contracts
Deposits on Flight Equipment
Assets constructed for others
AssetsConstructedForOthers
The aggregate costs related to airport construction projects recorded as an asset.
Property and equipment, at cost
Property, Plant and Equipment, Gross
Less allowance for depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property and equipment, net
Property, Plant and Equipment, Net
Goodwill
Goodwill
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Accrued liabilities
Accrued Liabilities, Current
Current operating lease liabilities
Operating Lease, Liability, Current
Air traffic liability
Contract with Customer, Liability, Current
Current maturities of long-term debt
Long-term Debt and Lease Obligation, Current
Total current liabilities
Liabilities, Current
Long-term debt less current maturities
Long-term Debt and Lease Obligation
Air traffic liability - noncurrent
Contract with Customer, Liability, Noncurrent
Deferred income taxes
Deferred Income Tax Liabilities, Net
Construction obligation
Construction Obligation, Noncurrent
Construction Obligation, Noncurrent
Noncurrent operating lease liabilities
Operating Lease, Liability, Noncurrent
Other noncurrent liabilities
Other Liabilities, Noncurrent
Stockholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Common stock
Common Stock, Value, Issued
Capital in excess of par value
Additional Paid in Capital, Common Stock
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Treasury stock, at cost
Treasury Stock, Value
Total stockholders' equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders' equity
Liabilities and Equity
Subsequent Events [Abstract]
Subsequent Event [Table]
Subsequent Event [Table]
Scenario [Axis]
Scenario [Axis]
Scenario [Domain]
Scenario [Domain]
Forecast
Forecast [Member]
Debt Description [Axis]
Debt Description [Axis]
Debt Description [Axis]
Debt Description [Domain]
Debt Description [Domain]
[Domain] for Debt Description [Axis]
Accordian Feature to Amended 364-Day Term Loan Credit Facility [Member]
Accordian Feature to Amended 364-Day Term Loan Credit Facility [Member]
Accordian Feature to Amended 364-Day Term Loan Credit Facility [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Long-term Debt
Long-term Debt [Member]
Equity
Equity [Member]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Unsecured Debt
Unsecured Debt [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
CARES Act Unsecured Loan
CARES Act Unsecured Loan [Member]
CARES Act Unsecured Loan [Member]
Amended 364-Day Term Loan Credit Facility
Amended 364-Day Term Loan Credit Facility [Member]
Amended 364-Day Term Loan Credit Facility [Member]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Domain]
Class of Warrant or Right [Domain]
LUV Common Stock Warrants
LUV Common Stock Warrants [Member]
LUV Common Stock Warrants [Member]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Total Expected Receipts of Relief Through Payroll Support Program of CARES Act
Total Expected Receipts of Relief Through Payroll Support Program of CARES Act
Total Expected Receipts of Relief Through Payroll Support Program of CARES Act
Expected Receipts Granted Through Payroll Support Program of CARES Act for Direct Payroll Support
Expected Receipts Granted Through Payroll Support Program of CARES Act for Direct Payroll Support
Expected Receipts Granted Through Payroll Support Program of CARES Act for Direct Payroll Support
Class of Warrant or Right, Outstanding
Class of Warrant or Right, Outstanding
Expected Unsecured Term Loan Through Payroll Support Program of CARES Act
Expected Unsecured Term Loan Through Payroll Support Program of CARES Act
Expected Unsecured Term Loan Through Payroll Support Program of CARES Act
Class of Warrant or Right, Number of Securities Called by Warrants or Rights
Class of Warrant or Right, Number of Securities Called by Warrants or Rights
Proceeds from Payroll Support Program Grant
Proceeds from Payroll Support Program Grant
Proceeds from Payroll Support Program Grant
Percent of Total Expected Proceeds Received from Payroll Support Program Grant
Percent of Total Expected Proceeds Received from Payroll Support Program Grant
Percent of Total Expected Proceeds Received from Payroll Support Program Grant
Proceeds from Payroll Support Program Grant for Direct Payroll Support
Proceeds from Payroll Support Program Grant for Direct Payroll Support
Proceeds from Payroll Support Program Grant for Direct Payroll Support
Unsecured Term Loan Through Payroll Support Program of CARES Act
Unsecured Term Loan Through Payroll Support Program of CARES Act
Unsecured Term Loan Through Payroll Support Program of CARES Act
Principal Amount Increase on Unsecured Term Loan Through Payroll Support Program of CARES Act
Principal Amount Increase on Unsecured Term Loan Through Payroll Support Program of CARES Act
Principal Amount Increase on Unsecured Term Loan Through Payroll Support Program of CARES Act
Principal Amount Increase on Warrants Issued to Treasury Through Payroll Support Program of CARES Act
Principal Amount Increase on Warrants Issued to Treasury Through Payroll Support Program of CARES Act
Principal Amount Increase on Warrants Issued to Treasury Through Payroll Support Program of CARES Act
Class of Warrant or Right, Exercise Price of Warrants or Rights
Class of Warrant or Right, Exercise Price of Warrants or Rights
Percent of Total Expected Proceeds Received in 2Q20 from Payroll Support Program of CARES Act
Percent of Total Expected Proceeds Received in 2Q20 from Payroll Support Program of CARES Act
Percent of Total Expected Proceeds Received in 2Q20 from Payroll Support Program of CARES Act
Stated interest rate
Debt Instrument, Interest Rate, Stated Percentage
Basis spread on variable rate (percent) April 21, 2025 and beyond
Debt Instrument, Basis Spread on Variable Rate
Expected Eligibility Amount for Secured Loans Through CARES Act
Expected Eligibility Amount for Secured Loans Through CARES Act
Expected Eligibility Amount for Secured Loans Through CARES Act
Expected Interest Rate for Secured Loans Through CARES Act
Expected Interest Rate for Secured Loans Through CARES Act
Expected Interest Rate for Secured Loans Through CARES Act
Expected Warrant Issuance to Treasury for Secured Loans Through CARES Act
Expected Warrant Issuance to Treasury for Secured Loans Through CARES Act
Expected Warrant Issuance to Treasury for Secured Loans Through CARES Act
Entity Number of Employees
Entity Number of Employees
Unencumbered Assets
Unencumbered Assets
Unencumbered Assets
Unencumbered Aircraft
Unencumbered Aircraft
Unencumbered Aircraft
364-Day Term Loan Credit Facility
Short-term Debt
Accordian Feature on Short-term Debt
Accordian Feature on Short-term Debt
Accordian Feature on Short-term Debt
Total Funds Available Amended 364-Day Term Loan Credit Facility
Total Funds Available Amended 364-Day Term Loan Credit Facility
Total Funds Available Amended 364-Day Term Loan Credit Facility
Fair Value Hedges, Net, Total [Abstract]
Derivative [Table]
Derivative [Table]
Hedge Adjustment [Axis]
Hedge Adjustment [Axis]
Hedge Adjustment [Axis]
Hedge Adjustment [Domain]
Hedge Adjustment [Domain]
[Domain] for Hedge Adjustment [Axis]
Cumulative fair value adjustment [Member]
cumulative fair value adjustment [Member]
cumulative fair value adjustment
Short-term Debt
Short-term Debt [Member]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Designated as Hedging Instrument
Designated as Hedging Instrument [Member]
Derivative Instrument Risk
Derivative Instrument [Axis]
Derivative Contract Type [Domain]
Derivative Contract [Domain]
Derivative [Line Items]
Derivative [Line Items]
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge
Derivative, Amount of Hedged Item
Derivative, Amount of Hedged Item
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Aircraft rentals
Aircraft Rental
Equity [Abstract]
COMPREHENSIVE INCOME (LOSS)
Comprehensive Income (Loss) Note [Text Block]
NEW ACCOUNTING PRONOUNCEMENTS
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Reclassification out of Accumulated Other Comprehensive Income (Loss) [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Accumulated Other Comprehensive Income Loss Net of Tax [Axis]
Accumulated Other Comprehensive Income Loss Net of Tax [Axis]
The accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at fiscal year-end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.
Accumulated Other Comprehensive Income Loss Net of Tax [Domain]
Accumulated Other Comprehensive Income Loss Net of Tax [Domain]
The accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at fiscal year-end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.
Fuel derivatives
Commodity Contract [Member]
Reclassification out of Accumulated Other Comprehensive Income (Loss) [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income (Loss) [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income (Loss)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Interest rate derivatives
Interest Rate Swap [Member]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Fuel derivatives
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Interest rate derivatives
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges Interest Rate Derivative [Member]
Accumulated other comprehensive income (loss) resulting from gain (loss) from interest rate derivative instruments designated and qualifying as the effective portion of cash flow hedges.
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification to earnings
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Fuel and oil
Fuel Costs
Other (gains) losses, net
Other Nonoperating Income (Expense)
Interest Expense
Interest Expense
Less: Tax Expense
Income Tax Expense (Benefit)
Net of Tax
Net Income (Loss) Available to Common Stockholders, Basic
Construction costs recorded in ACFO
Long-term Purchase Commitment [Table Text Block]
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Passenger
Passenger [Member]
Freight
Cargo and Freight [Member]
Other
Product and Service, Other [Member]
Statement [Line Items]
Statement [Line Items]
OPERATING REVENUE:
Revenues [Abstract]
Operating Revenue
Revenue from Contract with Customer, Excluding Assessed Tax
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification
OPERATING EXPENSES:
Costs and Expenses [Abstract]
Salaries, wages, and benefits
Labor and Related Expense
Landing fees and airport rentals
Landing Fees and Other Rentals
Maintenance materials and repairs
Aircraft Maintenance, Materials, and Repairs
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Other operating expenses
Other Cost and Expense, Operating
Operating Costs and Expenses
Operating Costs and Expenses
Total operating expenses
Operating Expenses
OPERATING INCOME (LOSS)
Operating Income (Loss)
OTHER EXPENSES (INCOME):
Nonoperating Income (Expense) [Abstract]
Interest expense
Interest Costs Incurred
Capitalized interest
Interest Costs Capitalized Adjustment
Interest income
Investment Income, Interest
Other (gains) losses, net
Total other expenses (income)
Nonoperating Income (Expense)
INCOME (LOSS) BEFORE INCOME TAXES
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
PROVISION FOR INCOME TAXES
NET INCOME (LOSS)
Net Income (Loss) Attributable to Parent
NET INCOME (LOSS) PER SHARE, BASIC
Earnings Per Share, Basic
NET INCOME (LOSS) PER SHARE, DILUTED
Earnings Per Share, Diluted
COMPREHENSIVE INCOME (LOSS)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
BASIC WEIGHTED AVERAGE SHARES OUTSTANDING
Earnings Per Share, Basic, Other Disclosures [Abstract]
Basic
Weighted Average Number of Shares Outstanding, Basic
DILUTED WEIGHTED AVERAGE SHARES OUTSTANDING
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Diluted
Weighted Average Number of Shares Outstanding, Diluted
Cash dividends declared per common share
Common Stock, Dividends, Per Share, Declared
Fair Value Disclosures [Abstract]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Axis]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Axis]
This element represents a number of concepts which are required or determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets and liabilities using significant unobservable inputs (Level 3).
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Domain]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Domain]
This element provides general categories of investment for which the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period.
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Estimate of Fair Value Measurement
Estimate of Fair Value Measurement [Member]
Asset Class [Axis]
Asset Class [Axis]
Asset Class [Domain]
Asset Class [Domain]
Cash Equivalents
Cash Equivalents [Member]
Commercial Paper
Commercial Paper [Member]
Certificates of Deposit
Certificates of Deposit [Member]
EuroDollar Certificates of Deposit [Member]
EuroDollar Certificates of Deposit [Member]
Time Deposits
Bank Time Deposits [Member]
Auction rate securities
Auction Rate Securities [Member]
Swap
Swap [Member]
Options Held
Options Held [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Fair Value, Measurements, Recurring
Fair Value, Recurring [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Quoted prices in active markets for identical assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Significant other observable inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Significant unobservable inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
Cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Treasury bills
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value
Investments
Investments, Fair Value Disclosure
Interest rate derivatives (see Note 4)
Interest Rate Derivative Assets, at Fair Value
Fuel derivatives:
Fuel derivative assets [Abstract]
-- None. No documentation exists for this element. --
Derivative Asset, Fair Value, Gross Asset
Derivative Asset, Fair Value, Gross Asset
Derivative Liability, Fair Value, Gross Asset
Derivative Liability, Fair Value, Gross Asset
Other available for sale securities
Other Assets, Fair Value Disclosure
Total assets
Assets, Fair Value Disclosure
Liabilities
Liabilities [Abstract]
Interest rate derivatives (see Note 4)
Interest Rate Derivative Liabilities, at Fair Value
Deferred Compensation
Other Liabilities, Fair Value Disclosure
Total Liabilities
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Fuel derivatives:
Fuel derivative liability [Abstract]
-- None. No documentation exists for this element. --
Derivative Asset, Fair Value, Gross Liability
Derivative Asset, Fair Value, Gross Liability
Derivative Liability, Fair Value, Gross Liability
Derivative Liability, Fair Value, Gross Liability
Unusual or Infrequent Items, or Both [Abstract]
Boeing 737 Max Aircraft Grounding
Unusual or Infrequent Items, or Both, Disclosure [Text Block]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Minimum
Minimum [Member]
Weighted Average
Weighted Average [Member]
Maximum
Maximum [Member]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Measurement Input, Option Volatility
Measurement Input, Option Volatility [Member]
Period [Axis]
Period [Axis]
Period [Axis]
Period [Domain]
Period [Domain]
[Domain] for Period [Axis]
Second quarter 2020
SecondQuarterCY [Member]
Second Quarter Current Year
Third quarter 2020
Third Quarter - CY [Member]
Third Quarter - CY [Member]
Fourth quarter 2020
Fourth Quarter - CY [Member]
Fourth Quarter - CY [Member]
2021
Next Year [Member]
Volume of fuel hedging for the next year, following current year end
2022
Year Two [Member]
Year Two [Member]
Beyond 2022
YearThree [Member]
YearThree [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative Asset, Measurement Input
Derivative Asset, Measurement Input
Supplemental Financial Information [Abstract]
Supplemental Financial Information [Abstract]
Supplemental Financial Data [Table]
Supplemental Financial Data [Table]
Supplemental Financial Data [Table]
Accrued Liabilities
Accrued Liabilities Balance Sheet Location [Member]
Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included.
Other Assets
Other Assets [Member]
Supplemental Financial Data [Line Items]
Supplemental Financial Data [Line Items]
[Line Items] for Supplemental Financial Data [Table]
Other Assets [Abstract]
Other Assets [Abstract]
Derivative contracts
Derivative Asset, Fair Value, Amount Offset Against Collateral, Total
Net fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected to be offset against an obligation to return collateral.
Intangible assets
Intangible Assets, Net (Excluding Goodwill)
Finance lease receivable
Capital Leases, Future Minimum Payments Receivable
Non-current prepaid maintenance
Prepaid Expense Other, Noncurrent
Other
Other Assets, Miscellaneous
Other assets
Other Assets
Available-for-sale Securities, Fair Value Disclosure
Available-for-sale Securities
Disaggregation of Revenue [Abstract]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Passenger Revenue Non Loyalty
PassengerRevenueNonLoyalty [Member]
Passenger Revenue Non Loyalty [Member]
Passenger Loyalty Air Transportation
PassengerLoyaltyAirTransportation [Member]
Passenger Loyalty Air Transportation [Member]
Passenger Ancillary Sold Separately
PassengerAncillarySoldSeparately [Member]
Passenger Ancillary Sold Separately
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Operating Revenue
NUMERATOR:
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Net income (loss)
DENOMINATOR:
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average shares outstanding, basic
Dilutive effect of restricted stock units
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Adjusted weighted-average shares outstanding, diluted
NET INCOME (LOSS) PER SHARE:
Earnings Per Share, Basic and Diluted [Abstract]
Basic
Diluted
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive amounts excluded from calculations
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Schedule Of Earnings Per Share Basic And Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Accounting Policies [Abstract]
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Derivatives
Derivatives, Policy [Policy Text Block]
Fair Value of Financial Instruments
Fair Value of Financial Instruments, Policy [Policy Text Block]
New Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Revenue Recognition
Revenue [Policy Text Block]
Lessee, Leases
Lessee, Leases [Policy Text Block]
Subsequent Events [Text Block]
Subsequent Events [Text Block]
FAIR VALUE MEASUREMENTS
Fair Value Disclosures [Text Block]
Document And Entity Information [Abstract]
-- None. No documentation exists for this element. --
Entities [Table]
Entities [Table]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Common Stock [Member]
Common Class A [Member]
Entity Listings, Exchange [Axis]
Entity Listings, Exchange [Axis]
Exchange [Domain]
Exchange [Domain]
NEW YORK STOCK EXCHANGE, INC. [Member]
NEW YORK STOCK EXCHANGE, INC. [Member]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Entity Information [Line Items]
Entity Information [Line Items]
Document Transition Report
Document Transition Report
Title of 12(b) Security
Title of 12(b) Security
Trading Symbol
Trading Symbol
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Document Quarterly Report
Document Quarterly Report
Entity Registrant Name
Entity Registrant Name
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Entity Shell Company
Entity Shell Company
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Entity File Number
Entity File Number
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Tax Identification Number
Entity Tax Identification Number
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, City or Town
Entity Address, City or Town
Entity Address, State or Province
Entity Address, State or Province
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Security Exchange Name
Security Exchange Name
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Existing Revolving Credit Facility [Axis]
Existing Revolving Credit Facility [Axis]
Existing Revolving Credit Facility [Axis]
Existing Revolving Credit Facility [Domain]
Existing Revolving Credit Facility [Domain]
[Domain] for Existing Revolving Credit Facility [Axis]
Existing Revolving Credit Facility [Member]
Existing Revolving Credit Facility [Member]
Existing Revolving Credit Facility [Member]
364-Day Term Loan Credit Facility
364-Day Term Loan Credit Facility [Member]
364-Day Term Loan Credit Facility [Member]
2.625% Notes due 2030
Unsecured Senior Notes Due 2030 [Member]
Unsecured Senior Notes Due 2030 [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
London Interbank Offered Rate (LIBOR) [Member]
London Interbank Offered Rate (LIBOR) [Member]
New York Fed Bank Rate [Member]
New York Fed Bank Rate [Member]
New York Fed Bank Rate [Member]
Base Rate [Member]
Base Rate [Member]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period [Domain]
Floor
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate During Period
Line of Credit Facility, Interest Rate During Period
Line of Credit Facility, Current Borrowing Capacity
Line of Credit Facility, Current Borrowing Capacity
Revolving Credit Facility, Maximum Amount Outstanding at Period End
Line of Credit Facility, Maximum Amount Outstanding at Period End
Line of Credit Facility, Maximum Amount Outstanding at Period End
Revolving Credit Facility
Long-term Line of Credit
Required Minimum Liquidity Level at All Times After March 31, 2021
Required Minimum Liquidity Level at All Times After March 31, 2021
Required Minimum Liquidity Level at All Times After March 31, 2021
Unsecured Debt Due 2030
Unsecured Debt
Remainder of 2020
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Remainder of Fiscal Year
2021
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two
2022
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three
2023
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four
2024
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five
2025
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Six
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Six
Beyond 2025
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Thereafter
Line of Credit Facility, Fair Value
Line of Credit Facility, Fair Value of Amount Outstanding
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Maximum Borrowing Capacity
Offsetting [Abstract]
Offsetting Liabilities [Table]
Offsetting Liabilities [Table]
Prepaid expenses and other current assets
Other Assets Current [Member]
Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included.
Accrued Liabilities [Member]
Accrued Liabilities [Member]
Other Noncurrent Liabilities
Other Noncurrent Liabilities [Member]
Offsetting Liabilities [Line Items]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities
Derivative Liability, Not Subject to Master Netting Arrangement
Gross asset amounts offset in the Balance Sheet
Derivative Liability, Fair Value, Gross Asset Offset
Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected to be offset against collateral.
Derivative contracts
Derivative Liability, Fair Value, Amount Offset Against Collateral, Total
Net fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected to be offset against a right to receive collateral.
Liability derivative contracts, net
Derivative Liability, Fair Value, Amount Offset Against Collateral
ATL - PAX Revenue and Ancillary PAX Services
AirTrafficLiabilityPassengerRevenueandAncillaryPassengerServices
Air Traffic Liability Passenger Revenue and Ancillary Passenger Services
AirTrafficLiabilityLoyaltyProgram
AirTrafficLiabilityLoyaltyProgram
Air Traffic Liability Loyalty Program
AirTrafficLiabilityTotal
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract]
Capital Addition Purchase Commitments
Capital Addition Purchase Commitments [Member]
Remainder of 2018
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year
2019
Unrecorded Unconditional Purchase Obligation, Due within Two Years
2020
Unrecorded Unconditional Purchase Obligation, Due within Three Years
2021
Unrecorded Unconditional Purchase Obligation, Due within Four Years
2022
Unrecorded Unconditional Purchase Obligation, Due within Five Years
After 2022
Unrecorded Unconditional Purchase Obligation, Due after Five Years
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Condensed Statement of Comprehensive Income (Loss) [Table]
Condensed Statement of Comprehensive Income [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2018-02
Accounting Standards Update 2018-02 [Domain]
Accounting Standards Update 2018-02
Equity Components [Axis]
Defined Benefit Plan Items
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other comprehensive income (loss) other changes net of tax
Other comprehensive income other changes net of tax [Member]
Adjustments to other comprehensive income which do not result from the effective portion of cash flow hedges.
Deferred Tax
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Adjustments for New Accounting Principle, ASU 2017-12
Adjustments for New Accounting Principle, Early Adoption [Member]
Adjustments for New Accounting Pronouncement, 2017-07
Adjustments for New Accounting Pronouncement [Member]
Condensed Statement of Income Captions [Line Items]
Condensed Statement of Income Captions [Line Items]
Net income (loss)
Unrealized gain (loss) on derivative instruments, net of deferred taxes
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Other, net of deferred taxes
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income (loss)
Other deferred taxes
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Derivative deferred taxes
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax
Deferred Revenue [Abstract]
Movement in Deferred Revenue
Movement in Deferred Revenue [Roll Forward]
Air traffic liability - loyalty program - beginning balance
Deferred Revenue
Amounts deferred associated with points awarded
RevenueAmountsDeferredAssociatedWithPointsAwarded
Revenue Amounts Deferred Associated With Points Awarded
Revenue recognized from points redeemed - Passenger
Passenger Revenue Recognized From Points Redeemed
Passenger Revenue Recognized From Points Redeemed
Revenue recognized from points redeemed - Other
Other Revenue Recognized From Points Redeemed
Other Revenue Recognized From Points Redeemed
Air traffic liability - loyalty program - ending balance
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Changes in fair value
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Reclassification to earnings
Ending Balance
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Interest rate derivatives
Other Nonoperating Income (Expense) [Member]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Not Designated as Hedging Instrument
Not Designated as Hedging Instrument [Member]
Cash Flow Hedging
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) loss recognized in AOCI on derivatives
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax
(Gain) Loss reclassified from AOCI into income
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
(Gain) Loss recognized in income on derivatives (ineffective portion)
Derivative, Net Hedge Ineffectiveness Gain (Loss)
(Gain) Loss recognized in income on derivatives
Derivative, Gain (Loss) on Derivative, Net
BASIS OF PRESENTATION
Basis of Accounting [Text Block]
Statement of Stockholders' Equity [Abstract]
Restatement [Axis]
Restatement [Axis]
Restatement [Domain]
Restatement [Domain]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Domain]
Adjustments for Change in Accounting Principle [Domain]
Adjustments for Error Corrections [Axis]
Adjustments for Error Corrections [Axis]
Adjustments for Error Correction [Domain]
Adjustments for Error Correction [Domain]
Cash dividends, per share (in dollars per share)
Common Stock, Dividends, Per Share, Cash Paid
Worldwide Pandemic [Abstract]
Worldwide Pandemic [Abstract]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Axis]
Short-term Debt, Type [Domain]
Short-term Debt, Type [Domain]
Notes Payable to Banks
Notes Payable to Banks [Member]
Total Funds Outstanding Amended 364-Day Term Loan Credit Facility [Member]
Total Funds Outstanding Amended 364-Day Term Loan Credit Facility [Member]
Total Funds Outstanding Amended 364-Day Term Loan Credit Facility [Member]
Term Loan Agreement Due 2021
Term Loan Agreement Due 2021 [Member]
Term Loan Agreement Due 2021 [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Use Rights [Member]
Use Rights [Member]
Proceeds from term loan credit facility
Proceeds from Notes Payable
Indefinite-Lived Domestic Slots and Routes
Indefinite-Lived Domestic Slots and Routes
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Line Of Credit Facility Carrying Value
Line Of Credit Facility Carrying Value Of Amount Outstanding
LineOfCreditFacilityCarryingValueOfAmountOutstanding
Other Commitments [Table]
Other Commitments [Table]
Other Commitments [Axis]
Other Commitments [Axis]
Other Commitments [Domain]
Other Commitments [Domain]
FLL Terminal
Fort Lauderdale-Hollywood International Airport [Member]
Fort Lauderdale-Hollywood International Airport [Member]
LAX Terminal 1
Los Angeles World Airport [Member]
Los Angeles World Airport [Member]
LAX Terminal 1.5
LosAngelesWorldAirportTerminal1.5 [Member]
Los Angeles World Airport Terminal 1.5 [Member]
LFMP Terminal
DAL [Member]
Love Field Modernization Project at DAL.
LFMP Parking Garage
DALGarage [Member]
DALGarage [Member]
HOU International Terminal
HOU [Member]
Houston Hobby Airport International Terminal Expansion Project
Other Commitments [Line Items]
Other Commitments [Line Items]
Total Expected Cost Of Airport Project
Total Expected Cost Of Airport Project
The total expected cost of the airport modernization project for the city.
Outstanding remaining guaranteed obligation
Outstanding remaining guaranteed obligation
Outstanding remaining guaranteed obligation
Airport Cost
AirportCost
Airport Cost
Total Cost of Airport Project
TotalCostofAirportProject
Tota lCos tof Airport Project
Total Expected Cost Of Airport Project Nonproprietary
TotalExpectedCostOfAirportProjectNonproprietary
Total Expected Cost Of Airport Project Nonproprietary
Reimbursement for Airport Project
Proprietary Construction Reimbursement
Proprietary construction reimbursement received after an airport modernization project for the city.
ACFO
Construction in Progress, Gross
Assets constructed for others, net
AssetsConstructedForOthersNet
Assets Constructed For Others Net
Construction Obligation
Contractual Obligation
Municipal bonds issued
Municipal Bonds Issued
Long-term debt securities issued by state, city or local governments or the agencies operated by state, city or local governments.
Municipal bonds principal remaining
Principal Remaining
Principal Remaining
Net present value of principal remaining
Net Present Value of Principal Remaining
Net Present Value of Principal Remaining
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Commodity Contract Type [Axis]
Commodity Contract Type [Axis]
Commodity Contract Type [Axis]
Commodity Contract Type [Domain]
Commodity Contract Type [Domain]
[Domain] for Commodity Contract Type [Axis]
Commodity Option
Commodity Option [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss), Total
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss), Total
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss), Total
Losses for the period included in earnings
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings
Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset (Liability), Gain (Loss), OCI
Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset (Liability), Gain (Loss), OCI
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Ending Balance
The amount of total losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at March 31, 2020
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Components of Comprehensive Income (Loss)
Comprehensive Income (Loss) [Table Text Block]
Rollforward of the Amounts Included in AOCI, Net of Taxes
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Reclassification out of Accumulated Other Comprehensive Income (Loss)
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Revenue from Contract with Customer [Abstract]
Disaggregation of Passenger Revenue
Disaggregation of Revenue [Table Text Block]
Components of Air Traffic Liability
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
Rollforward of Air Traffic Liability
Contract with Customer, Asset and Liability [Table Text Block]
Accounts and Other Receivables [Abstract]
Accounts and Other Receivables [Abstract]
Trade receivables
Trade Receivables
Trade Receivables
Credit card receivables
Credit Card Receivables
Business partners and other suppliers
BusinessPartnersAndOtherSuppliers
BusinessPartnersAndOtherSuppliers
Income tax receivable
Income Taxes Receivable, Current
Other
Other Receivables, Net, Current
Accounts and other receivables
Accrued Liabilities, Current [Abstract]
Accrued Liabilities, Current [Abstract]
Profitsharing and savings plans
Deferred Compensation Cash-based Arrangements, Liability, Current
Aircraft and other lease related obligations
Accrued Rent, Current
Permanently grounded aircraft liability current
Permanentlygroundedaircraftliabilitycurrent
Permanently grounded aircraft liability current
Vacation pay
Accrued Vacation, Current
Union Bonuses
Accrued Bonuses, Current
Health
Accrued Employee Benefits, Current
Workers compensation
Workers' Compensation Liability, Current
Property and income taxes
Accrual for Property and Income Taxes
Accrual for Property and Income Taxes
Derivative contracts
Other
Other Accrued Liabilities, Current
Accrued liabilities
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Accounts Payable
Accounts Payable Balance Sheet Location [Member] [Domain]
Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included.
Accounts And Other Receivables
Accounts And Other Receivables [Member]
Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included.
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Liability
Derivative Liability, Fair Value, Gross Liability
Assets and liabilities measured at fair value on a recurring basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Fair Value Valuation Techniques
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Fair value, by Balance Sheet Grouping
Fair Value, by Balance Sheet Grouping [Table Text Block]
Transaction Type [Axis]
Transaction Type [Axis]
Transaction [Domain]
Transaction [Domain]
No Longer Probable Within Scheduled Delivery Range
No Longer Probable Within Scheduled Delivery Range [Member]
No Longer Probable Within Scheduled Delivery Range [Member]
Probable Within Scheduled Delivery Range
Probable Within Scheduled Delivery Range [Member]
Probable Within Scheduled Delivery Range [Member]
Counterparty Name
Counterparty Name [Axis]
Counterparty Name
Counterparty Name [Domain]
Percent of Estimated Fuel Consumption Covered By Fuel Derivative Instruments [Axis]
Percent of Estimated Fuel Consumption Covered By Fuel Derivative Instruments [Axis]
Schedule of the percent of estimated fuel consumption covered by fuel derivative instruments, by price range per barrel.
Percent Of Estimated Fuel Consumption Covered By Fuel Derivative Instruments [Domain]
Percent Of Estimated Fuel Consumption Covered By Fuel Derivative Instruments [Domain]
Schedule of the percent of estimated fuel consumption covered by fuel derivative instruments, by price range per barrel.
Remainder of Current Year
Remainder of Current Year [Member]
Remainder of Current Year
Volume of Fuel Hedging [Axis]
Volume of Fuel Hedging [Axis]
Schedule of the volume of fuel hedging for the current year (including current and prior period actuals), as well as for future periods.
Volume of Fuel Hedging [Domain]
Volume of Fuel Hedging [Domain]
Schedule of the volume of fuel hedging for the current year (including current and prior period actuals), as well as for future periods.
Remainder of Current Year
Current Year [Member]
Volume of fuel hedging for the remainder of the current year
Interest rate swap
Interest Rate Swaption [Member]
Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring
Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring
Cash collateral held (from) by CP
Collateral Already Posted, Aggregate Fair Value
Interest Rate Derivative
Interest Rate Swap Derivative, Aircraft Leases
Interest Rate Swap Derivative, Aircraft Leases
Discontinuation of Interest Rate Cash Flow Hedge Balance in AOCI
Discontinuation of Interest Rate Cash Flow Hedge Balance in AOCI
Discontinuation of Interest Rate Cash Flow Hedge Balance in AOCI
Interest Rate Swap Contract Length
Interest Rate Swap Contract Length
Interest Rate Swap Contract Length
Premiums paid for fuel derivative contracts
Derivative, Cost of Hedge
Percentage of actual consumption hedged
Percentage of actual consumption hedged
Percentage of actual consumption hedged
Debt Instrument, Face Amount
Debt Instrument, Face Amount
Hedge settlement losses recognized in Fuel and oil expense
Hedge settlement losses recognized in Fuel and oil expense
Hedge settlement losses recognized in Fuel and oil expense
Current Unrealized Net Losses in OCI
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months
Maximum sum of derivatives of counterparty to be included in other (less than $8 million)
Maximum Sum Of Derivatives Of Counterparty To Be Included In Other
Maximum sum of derivatives of a counterparty to be included in Other and no risk of the Company posting collateral.
Cash Collateral Percent Of Fair Value Fuel Derivatives Contracts
Cash Collateral Percent Of Fair Value Fuel Derivatives Contracts
Represents percentage of cash collateral provided on the fair value of fuel derivative contracts when credit rating is non-investment grade.
Letter of Credit Percent of Collateral
Letter of Credit Percent of Collateral
Represents the percentage of cash collateral that can be provided with a letter of credit.
Percent of fuel consumption hedged
Derivative, Nonmonetary Notional Amount, Percent of Required Need, Coverage
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net
Option to substitute LC for cash Threshold 1
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Cash Threshold 1
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Cash Threshold 1
Airport Project [Axis]
Airport Project [Axis]
Airport Project [Axis]
Airport Project [Domain]
Airport Project [Domain]
[Domain] for Airport Project [Axis]
Dallas Love Field Terminal
Other Liabilities, Noncurrent [Abstract]
Other Liabilities, Noncurrent [Abstract]
Postretirement obligation
Liability, Defined Benefit Plan, Noncurrent
Non-current lease-related obligations
Noncurrent Lease Related Obligations
This element represents a liability associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition and for incentives for sublease transaction of aircraft.
Permanently grounded aircraft liability noncurrent
Permanentlygroundedaircraftliabilitynoncurrent
Permanently grounded aircraft liability noncurrent
Other deferred compensation
Other Deferred Compensation Arrangements, Liability, Classified, Noncurrent
Other
Other Sundry Liabilities, Noncurrent
Other noncurrent liabilities
Boeing 737 Max Aircraft Grounding [Abstract]
Boeing 737 Max Aircraft Grounding [Abstract]
B-737-Max
Asset Disposition [Axis]
Asset Disposition [Axis]
Asset Disposition [Axis]
Asset Disposition [Domain]
Asset Disposition [Domain]
[Domain] for Asset Disposition [Axis]
Contract to Own Aircraft
Contract to Own Aircraft [Member]
Contract to Own Aircraft [Member]
Contract to Lease Aircraft
Contract to Lease Aircraft [Member]
Contract to Lease Aircraft [Member]
Number of Aircraft Grounded Under Emergency Order
Number of Aircraft Grounded Under Emergency Order
Number of Aircraft Grounded Under Emergency Order
Potential Concessions to All Airlines Related to MAX Grounding
Potential Concessions and Other Considerations
Potential Concessions and Other Considerations
Number of MAX Aircraft Expected To Be Delivered in Fourth Quarter 2019
Number of MAX Aircraft Expected To Be Delivered in Fourth Quarter 2019
Number of MAX Aircraft Expected To Be Delivered in Fourth Quarter 2019
Number of MAX Aircraft Expected To Be Delivered in 2020
Number of MAX Aircraft Expected To Be Delivered in 2020
Number of MAX Aircraft Expected To Be Delivered in 2020
After-Tax Potential Concessions and Other Considerations Announced July 2019
After-Tax Potential Concessions and Other Considerations Announced July 2019
After-Tax Potential Concessions and Other Considerations Announced July 2019
Pre-Tax Potential Concessions and Other Considerations Announced January 2020
Pre-Tax Potential Concessions and Other Considerations Announced January 2020
Pre-Tax Potential Concessions and Other Considerations Announced January 2020
Number of Aircraft Not Delivered Due to Grounding Under Emergency Order
Number of Aircraft Not Delivered Due to Grounding Under Emergency Order
Number of Aircraft Not Delivered Due to Grounding Under Emergency Order
Owned Assets, Number of Units
Owned Assets, Number of Units
The number of units (items of property) owned.
Supplier Proceeds
Supplier Proceeds
Supplier Proceeds
Volume Of Fuel Hedging [Table]
Volume Of Fuel Hedging [Table]
Schedule of the volume of fuel hedging for the current year (including current and prior period actuals), as well as for future periods.
Volume of Fuel Hedging
Volume of Fuel Hedging [Line Items]
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
Fuel Hedged (in gallons)
Derivative, Nonmonetary Notional Amount
Cash collateral deposits held from CP for fuel contracts - current
Derivative Asset, Collateral, Obligation to Return Cash, Offset
Cash collateral deposits held from CP for fuel contracts - non-current
DerivativeAssetNoncurrentCollateralObligationToReturnCashOffset
Derivative Asset Noncurrent Collateral Obligation To Return Cash Offset
Collateral Already Posted Aggregate Fair Value Noncurrent
Collateral Already Posted Aggregate Fair Value Noncurrent
Total cash that is already posted, at the end of the reporting period, as noncurrent collateral for derivative instruments with credit-risk-related contingent features.
Due to third parties for fuel contracts
Due To Third Parties For Settled Fuel Contracts
Amount due to third parties for settled fuel contracts as of the end of the period reported, recorded in Accrued liabilities on the balance sheet.
Receivable from third parties for settled fuel contracts - current
Receivable from third parties for settled fuel contracts - current
Amount receivable from third parties for settled fuel contracts as of the end of the period reported, recorded in Accounts and other receivables on the balance sheet.
Disclosure Text Block [Abstract]
SUPPLEMENTAL FINANCIAL INFORMATION
Additional Financial Information Disclosure [Text Block]
Worldwide Pandemic
Accounting Effects of Worldwide Pandemic [Text Block]
Accounting Effects of Worldwide Pandemic
Statement of Cash Flows [Abstract]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Loss on asset impairment
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)
Aircraft grounding charge
Aircraftgroundingcharge
Aircraft grounding charge
Unrealized/realized (gain) loss on fuel derivative instruments
Unrealized Gain (Loss) on Derivatives
Deferred income taxes
Increase (Decrease) in Deferred Income Taxes
Changes in certain assets and liabilities:
Increase (Decrease) in Operating Capital [Abstract]
Accounts and other receivables
Increase (Decrease) in Accounts and Other Receivables
Other assets
Increase (Decrease) in Other Operating Assets
Accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Air traffic liability
Increase (Decrease) in Contract with Customer, Liability
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Cash collateral received from (provided to) derivative counterparties
Increase (Decrease) Cash Collateral from Counterparties
Other, net
Other Operating Activities, Cash Flow Statement
Net cash provided by (used in) operating activities
Net Cash Provided by (Used in) Operating Activities
Fair value of fuel derivatives
Derivative Liability, Fair Value, Amount Not Offset Against Collateral
CASH FLOWS FROM INVESTING ACTIVITIES:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures
Payments to Acquire Productive Assets
Supplier Proceeds
Assets constructed for others
Payments for Construction in Process
Purchases of short-term investments
Payments to Acquire Short-term Investments
Proceeds from sales of short-term and other investments
Proceeds from Sale of Short-term Investments
Other, net
Payments for (Proceeds from) Other Investing Activities
Net cash provided by (used in) investing activities
Net Cash Provided by (Used in) Investing Activities
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of long-term debt
Proceeds from Issuance of Debt
Proceeds from revolving credit facility
Proceeds from Lines of Credit
Proceeds from term loan credit facility
Proceeds from Employee stock plans
Proceeds from Stock Plans
Reimbursement for assets constructed for others
Reimbursement for airport construction
Cash inflow related to the reimbursement for airport construction.
Payments of long-term debt and finance lease obligations
Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security
Payments of cash dividends
Payments of Dividends
Repayment of construction obligation
Repayments Of Construction Obligation
Repayments of construction obligation.
Repurchase of common stock
Payments for Repurchase of Common Stock
Other, net
Proceeds from (Payments for) Other Financing Activities
Net cash provided by (used in) financing activities
Net Cash Provided by (Used in) Financing Activities
NET CHANGE IN CASH AND CASH EQUIVALENTS
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD
CASH AND CASH EQUIVALENTS AT END OF PERIOD
CASH PAYMENTS FOR:
Supplemental Cash Flow Information [Abstract]
Interest, net of amount capitalized
Interest Paid, Excluding Capitalized Interest, Operating Activities
Income taxes
Income Taxes Paid
SUPPLEMENTAL DISCLOSURE OF NONCASH TRANSACTIONS
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Flight equipment acquired through the assumption of debt
Noncash or Part Noncash Acquisition, Debt Assumed
Right-of-use assets acquired under operating leases
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Right-of-use assets acquired under finance leases
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Flight equipment under finance leases
Lease Obligation Incurred
Assets constructed for others
Assets Constructed for Others During Period
Assets Constructed for Others During Period
Table Text Block [Abstract]
Accounts and Other Receivables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Other Assets
Schedule of Other Assets [Table Text Block]
Schedule of Accounts Payable
Schedule Of Accounts Payable [Table Text Block]
Tabular disclosure of the components of accounts payable.
Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Other Noncurrent Liabilities
Other Noncurrent Liabilities [Table Text Block]
Fair Value Hedging
Fair Value Hedging [Member]
Fuel
Fuel [Member]
Other (gains)/losses, net
Gain (Loss) on Derivative Instruments [Member]
Interest Expense
Interest Expense [Member]
Energy [Axis]
Energy [Axis]
Energy [Domain]
Energy [Domain]
Position [Axis]
Position [Axis]
Position [Domain]
Position [Domain]
(Gain) Loss on Derivative Instruments, Net, Pretax
Gain (Loss) on Derivative Instruments, Net, Pretax
Derivative Instruments, (Gain) Loss Reclassified from Accumulated OCI into Income, Effective Portion, Net
Interest Expense, Debt
Interest Expense, Debt
Deferred Revenue Disclosure [Abstract]
Deferred Revenue Arrangement, by Type [Table]
Deferred Revenue Arrangement, by Type [Table]
Deferred Revenue Arrangement Type [Axis]
Deferred Revenue Arrangement Type [Axis]
Deferred Revenue
Deferred Revenue [Domain]
Chase And Other Partner Agreements
ChaseAndOtherPartnerAgreements [Member]
Chase And Other Partner Agreements
Deferred Revenue Arrangement [Line Items]
Deferred Revenue Arrangement [Line Items]
Residual Travel Funds
Residual Travel Funds
Residual Travel Funds
REVENUE
Revenue from Contract with Customer [Text Block]
FINANCIAL DERIVATIVE INSTRUMENTS
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Offsetting Assets [Table]
Offsetting Assets [Table]
Offsetting Assets [Line Items]
Offsetting Assets [Line Items]
Gross amounts of recognized assets
Derivative Asset, Not Subject to Master Netting Arrangement
Gross liability amounts offset in the Balance Sheet
Derivative Asset, Fair Value, Gross Liability Offset
Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected to be offset against collateral.
Asset derivative contracts, net
Derivative, Fair Value, Amount Offset Against Collateral, Net
Asset derivative contracts, net
Debt Disclosure [Text Block]
Debt Disclosure [Text Block]
COMMITMENTS AND CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
Schedule Of Fair Values Of Fuel Derivatives Amounts Posted As Collateral And Collateral Posting Thresholds [Table]
Schedule Of Fair Values Of Fuel Derivatives Amounts Posted As Collateral And Collateral Posting Thresholds [Table]
Schedule of the agreements the Company had with counterparties in which cash deposits and/or pledged aircraft are required to be posted whenever the net fair value of derivatives associated with those counterparties exceeds specific thresholds. Includes the fair values of fuel derivatives, amounts posted as collateral, and applicable collateral posting threshold amounts at which such postings are triggered.
Counterparty A
Counterparty Alpha [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty B
Counterparty B [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty C
Counterparty C [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty D
Counterparty D [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty E
Counterparty E [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty F
Counterparty F [Member]
Identification of counterparty with which the Company had an agreement to post collateral whenever the net fair value of derivatives associated with the counterparty exceeds specific thresholds.
Counterparty Other
Counterparty Other [Member]
The sum of remaining counterparties not separately identified, with which the Company has unsettled derivative instruments. These counterparties are considered individually immaterial in the consideration of derivatives outstanding and do not contain provisions in which the Company would have to post cash or other collateral based on potential changes in credit ratings or changes in the market value of outstanding derivative instruments.
Schedule Of Fair Values Of Fuel Derivatives Amounts Posted As Collateral And Collateral Posting Thresholds [Line Items]
Schedule Of Fair Values Of Fuel Derivatives Amounts Posted As Collateral And Collateral Posting Thresholds [Line Items]
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
Derivative Liability, Fair Value, Amount Not Offset Against Collateral
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Cash collateral held (from) by CP
Aircraft collateral pledged to CP
Aircraft Collateral Pledged Aggregate Fair Value
The aggregate fair value of assets (aircraft) pledged, at the end of the reporting period, as collateral for outstanding derivative instruments with credit-risk-related contingent features.
Letters of credit (LC)
Letters of Credit Collateral Pledged Aggregate Fair Value
Letters of Credit Collateral Pledged Aggregate Fair Value
Option to substitute LC for aircraft
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Aircraft
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Aircraft
Option to substitute LC for cash Threshold 1
Option to substitute LC for cash Threshold 2
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Cash Threshold 2
Fair Value Of Fuel Derivative Levels In Which Letters Of Credit May Be Substituted For Cash Threshold 2
If credit rating is investment grade, fair value of fuel derivative level at which:
Investment Grade Credit Rating [Abstract]
-- None. No documentation exists for this element. --
Fair value of fuel derivative levels at which cash is provided to CP Threshold 1
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Cash Is Provided Threshold 1
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Cash Is Provided Threshold 1
Fair value of fuel derivative levels at which cash is provided to CP Threshold 2
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Cash Is Provided Threshold 2
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Cash Is Provided Threshold 2
Fair value of fuel derivative level at which cash is received from CP
Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Received
Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Received
Fair value of fuel derivative levels at which cash collateral is pledged to CP
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Aircraft Or Cash Collateral Is Pledged
Investment Grade Rating Fair Value Of Fuel Derivative Levels In Which Aircraft Or Cash Collateral Is Pledged
If credit rating is non-investment grade, fair value of fuel derivative level at which:
Non-Investment Grade Credit Rating [Abstract]
-- None. No documentation exists for this element. --
Fair value of fuel derivative levels at which cash is provided to CP Threshold 1
Non Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Provided Threshold 1
Non Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Provided Threshold 1
Fair value of fuel derivative levels at which cash is provided to CP Threshold 2
Non Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Provided Threshold 2
Non Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Provided Threshold 2
Fair value of fuel derivative level at which cash is received from CP
Non-Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Received
Non-Investment Grade Rating Fair Value Of Fuel Derivative Level In Which Cash Is Received
Fair value of fuel derivative levels at which cash collateral is pledged to CP
Non Investment Grade Rating Fair Value Of Fuel Derivative Levels at Which Cash collateral Is Pledged
Non Investment Grade Rating Fair Value Of Fuel Derivative Levels at Which Cash collateral Is Pledged
Fair Value Valuation Technique [Axis]
Fair Value Valuation Technique [Axis]
Valuation techniques for Level 3 fair value measurements
Valuation Techniques For Fair Value Measurements [Domain]
Valuation Techniques For Fair Value Measurements [Domain]
Valuation technique for Level 3 fair value measurements
Discounted Cash Flow
Discounted Cash Flow [Member]
Valuation technique for Level 3 fair value measurements
Unobservable Input [Axis]
Unobservable Input [Axis]
Unobservableinputs for Level 3 fair value measurements
Unobservable Input [Domain]
Unobservable Input [Domain]
Unobservable input for Level 3 fair value measurements
Level 2
Level 3
2.75% Notes Due November 2019
Unsecured Senior Notes Due 2019 [Member] [Member]
Unsecured, Senior debt obligation due in 2019. Unsecured debt is not collateralized by pledge, mortgage, or other lien in the entity's assets. Senior notes have the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle is longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.
2.65% Notes due 2020
Unsecured Senior Notes Due 2020 [Member]
Unsecured Senior Notes Due 2020 [Member]
Term Loan Agreement payable through 2020 - 5.223%
Term Loan Agreement Due 2020 [Member]
A collateralized debt obligation (backed by pledge, mortgage or other lien on the entity's assets) with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion. Such obligations are due in 2020.
737 Aircraft Notes payable through 2020
Notes Payable Aircraft Floating Rate Through 2020 [Member]
A written promise to pay a note to a third party. Such obligations are due through 2020.
2.75% Notes due 2022
Unsecured Senior Notes Due 2022 [Domain]
Unsecured Senior Notes Due 2022 [Domain]
Pass Through Certificates due 2022 - 6.24%
Total Pass Through Certificates [Member]
Total of Pass Through Certificates Series A and Series B.
Term Loan Agreement due 2026 - 3.71%
Term Loan Agreement Due 2026 [Member]
Term Loan Agreement Due 2026
3.00% Notes due 2026
Unsecured Senior Notes Due 2026 [Member]
Unsecured Senior Notes Due 2026
3.45% Notes due 2027
Unsecured Senior Notes Due 2027 [Member]
Unsecured, Senior debt obligation due in 2027. Unsecured debt is not collateralized by pledge, mortgage or other lien in the entity's assets. Senior notes have the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.
7.375% Debentures due 2027
Debentures due 2027 [Domain]
Debentures due 2027 [Domain]
Enhanced Equipment Trust Certificate
Enhanced Equipment Trust Certificate [Member]
Loans Payable, Fair Value
Loans Payable, Fair Value Disclosure
Carrying amount of debt
Long-term Debt, Gross
Notes Payable, Fair Value
Notes Payable, Fair Value Disclosure
Short-term Debt
Revolving Credit Facility Carrying Value
Volume of Fuel Hedging
Schedule Of Volume Of Fuel Hedging [Table Text Block]
Disclosure of the volume of fuel hedging for the current year (including current and prior period actuals), as well as for future periods.
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Schedule of Derivative Instruments Statements of Financial Performance and Financial Position, Location
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Cash Collateral Deposits Due To or From Third Parties
Cash Collateral Deposits Due To or From Third Parties [Table Text Block]
Cash Collateral Deposits Due To or From Third Parties
Cash Collateral Deposits Due To Or From Third Parties
Cash Collateral Deposits Due To Or From Third Parties and Net Unrealized Losses [Table Text Block]
Disclosure of cash collateral deposits provided to or from a counterparty, due to or from third parties for settled fuel contracts, and net unrealized gains/losses from fuel hedges, net of tax, for fuel derivative instruments and hedging activities.
Offsetting Assets
Offsetting Assets [Table Text Block]
Offsetting Liabilities
Offsetting Liabilities [Table Text Block]
Schedule Of Derivative Instruments In Hedging Relationships Gain Loss In Statement Of Financial Performance
Schedule Of Derivative Instruments In Hedging Relationships Gain Loss In Statement Of Financial Performance [Table Text Block]
Schedule Of Derivative Instruments In Hedging Relationships Gain Loss In Statement Of Financial Performance
Derivatives in Cash Flow Hedging Relationships
Schedule Of Derivative Instruments In Cash Flow Hedging Relationships Gain (Loss) In Statement Of Financial Performance [Table Text Block]
Schedule of the location and amount of gains and losses reported in the statement of financial performance (or when applicable, the statement of financial position, for example, gains and losses initially recognized in other comprehensive income) on derivative instruments designated and qualifying as hedging instruments in cash flow hedges.
Derivatives Not in Cash Flow Hedging Relationships
Schedule Of Derivative Instruments Not In Cash Flow Hedging Relationships Gain Loss In Statement Of Financial Performance [Table Text Block]
Schedule of the location and amount of gains and losses reported in the statement of financial performance (or when applicable, the statement of financial position, for example, gains and losses initially recognized in other comprehensive income) on derivative instruments not designated and qualifying as hedging instruments in cash flow hedges.
Fair Values of Fuel Derivatives, Amounts Posted as Collateral, and Collateral Posting Threshold Amounts
Schedule Of Fair Values Of Fuel Derivatives Amounts Posted As Collateral And Collateral Posting Thresholds [Table Text Block]
Disclosure of the agreements the Company had with counterparties in which cash deposits/receipts and/or pledged aircraft are required to be posted whenever the net fair value of derivatives associated with those counterparties exceeds specific thresholds. Includes the fair values of fuel derivatives, amounts posted as collateral, and applicable collateral posting threshold amounts at which such postings are triggered.
Supplemental Financial Information - Accounts Payable [Abstract]
Supplemental Financial Information - Accounts Payable [Abstract]
Accounts payable trade
Accounts Payable, Trade, Current
Salaries payable
Accrued Salaries, Current
Taxes payable
Taxes Payable, Current
Aircraft maintenance payable
Aircraft Maintenance Payable
Carrying value as of the balance sheet date of obligations incurred and payable for aircraft maintenance. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
Fuel payable
Fuel Payable
Carrying value as of the balance sheet date of obligations incurred and payable for fuel. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
Dividends Payable
Dividends Payable
Other payable
Accounts Payable, Other, Current
Accounts Payable, Current
Accounting Standards Update 2017-12
Accounting Standards Update 2017-12 [Member]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
Treasury stock
Treasury Stock [Member]
Accumulated other comprehensive income (loss)
AOCI Attributable to Parent [Member]
Retained earnings
Retained Earnings [Member]
Capital in excess of par value
Additional Paid-in Capital [Member]
Common Stock
Common Stock [Member]
Cumulative effect of new accounting standards
New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets
New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period
Cumulative effect of new accounting standards
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets
Repurchase of common stock
Treasury Stock, Value, Acquired, Cost Method
Issuance of common and treasury stock pursuant to Employee stock plans
Stock Issued During Period, Value, Employee Stock Purchase Plan
Share-based compensation
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
Cash dividends
Dividends, Cash
Balance at end of period