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"en": "Operating Lease Converted To Finance Lease"}, "us-gaap_Dividends": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Dividends", "en": "Dividends"}, "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation": {"ty": "money", "ba": "credit", "pd": "duration", "ab": false, "jp": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture", "en": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture"}, "us-gaap_StockRepurchasedAndRetiredDuringPeriodValue": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Stock Repurchased and Retired During Period, Value", "en": "Stock Repurchased and Retired During Period, Value"}, "us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued": {"ty": "money", "ba": "credit", "pd": "duration", "ab": false, "jp": "Adjustments to Additional Paid in Capital, Warrant Issued", "en": "Adjustments to Additional Paid in Capital, Warrant Issued"}, 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"debit", "pd": "duration", "ab": false, "jp": "Depreciation, Depletion and Amortization", "en": "Depreciation, Depletion and Amortization"}, "us-gaap_CapitalizedComputerSoftwareAmortization1": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Capitalized Computer Software, Amortization", "en": "Capitalized Computer Software, Amortization"}, "us-gaap_CapitalizedComputerSoftwareNet": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Capitalized Computer Software, Net", "en": "Capitalized Computer Software, Net"}, "us-gaap_ShortTermNonBankLoansAndNotesPayable": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Short-term Non-bank Loans and Notes Payable", "en": "Short-term Non-bank Loans and Notes Payable"}, "us-gaap_AdvertisingExpense": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Advertising Expense", "en": "Advertising Expense"}, "dal_YearOverYearDecreaseInSystemCapacityPercentage": {"ty": "num:percentItemType", "ba": null, "pd": "duration", "ab": false, "jp": "Year-Over-Year Decrease In System Capacity, Percentage", "en": "Year-Over-Year Decrease In System Capacity, Percentage"}, "dal_NumberOfAircraftPermanentlyRetired": {"ty": "xbrli:integerItemType", "ba": null, "pd": "duration", "ab": false, "jp": "Number Of Aircraft Permanently Retired", "en": "Number Of Aircraft Permanently Retired"}, "dal_NumberOfAircraftTemporarilyParked": {"ty": "xbrli:integerItemType", "ba": null, "pd": "instant", "ab": false, "jp": "Number Of Aircraft Temporarily Parked", "en": "Number Of Aircraft Temporarily Parked"}, "dal_NumberOfAircraftRemovedFromActiveService": {"ty": "xbrli:integerItemType", "ba": null, "pd": "duration", "ab": false, "jp": "Number Of Aircraft Removed From Active Service", "en": "Number Of Aircraft Removed From Active Service"}, "dal_EmployeeRelatedCostReductionsNumberOfEmployeesVolunteeringForLeave": {"ty": "xbrli:integerItemType", "ba": null, "pd": "duration", "ab": false, "jp": "Employee Related Cost Reductions, Number Of Employees Volunteering For Leave", "en": "Employee Related Cost Reductions, Number Of Employees Volunteering For Leave"}, "dal_CashCashEquivalentsShortTermInvestmentsAndAmountsAvailableUnderRevolvingCreditFacilities": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Cash, Cash Equivalents, Short-Term Investments, And Amounts Available Under Revolving Credit Facilities", "en": "Cash, Cash Equivalents, Short-Term Investments, And Amounts Available Under Revolving Credit Facilities"}, "dal_FinancingTransactionsCompletedAmount": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Financing Transactions Completed, Amount", "en": "Financing Transactions Completed, Amount"}, "dal_ProceedsFromGovernmentAssistancePayrollSupportProgramCARESAct": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Proceeds from Government Assistance, Payroll Support Program, CARES Act", "en": "Proceeds from Government Assistance, Payroll Support Program, CARES Act"}, "dal_ReductionInPlannedCapitalExpenditures": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Reduction In Planned Capital Expenditures", "en": "Reduction In Planned Capital Expenditures"}, "dal_NumberOfAircraftToBeRetired": {"ty": "xbrli:integerItemType", "ba": null, "pd": "duration", "ab": false, "jp": "Number Of Aircraft To Be Retired", "en": "Number Of Aircraft To Be Retired"}, "us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Impairment of Long-Lived Assets to be Disposed of", "en": "Impairment of Long-Lived Assets to be Disposed of"}, "dal_ContractWithCustomerLiabilityRefundToCustomer": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Contract With Customer, Liability, Refund To Customer", "en": "Contract With Customer, Liability, Refund To Customer"}, 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{"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Derivative, Collateral, Right to Reclaim Cash", "en": "Derivative, Collateral, Right to Reclaim Cash"}, "dal_IndefiniteLivedIntangibleAssetsAndGoodwill": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Indefinite-Lived Intangible Assets And Goodwill", "en": "Indefinite-Lived Intangible Assets And Goodwill"}, "us-gaap_FiniteLivedIntangibleAssetsGross": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finite-Lived Intangible Assets, Gross", "en": "Finite-Lived Intangible Assets, Gross"}, "us-gaap_AmortizationOfIntangibleAssets": {"ty": "money", "ba": "debit", "pd": "duration", "ab": false, "jp": "Amortization of Intangible Assets", "en": "Amortization of Intangible Assets"}, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finite-Lived Intangible Asset, Expected Amortization, Year Four", "en": "Finite-Lived Intangible Asset, Expected Amortization, Year Four"}, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finite-Lived Intangible Asset, Expected Amortization, Year Three", "en": "Finite-Lived Intangible Asset, Expected Amortization, Year Three"}, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finite-Lived Intangible Asset, Expected Amortization, Year Two", "en": "Finite-Lived Intangible Asset, Expected Amortization, Year Two"}, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finite-Lived Intangible Asset, Expected Amortization, Year Five", "en": "Finite-Lived Intangible Asset, Expected Amortization, Year Five"}, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {"ty": "money", "ba": "debit", "pd": 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(Premium) And Debt Issuance Costs, Net Year Two", "en": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Two"}, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Long-Term Debt, Maturity, Year Three", "en": "Long-Term Debt, Maturity, Year Three"}, "dal_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetYearThree": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Three", "en": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Three"}, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Long-Term Debt, Maturity, Year Four", "en": "Long-Term Debt, Maturity, Year Four"}, "dal_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetYearFour": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Four", "en": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Four"}, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Long-Term Debt, Maturity, Year Five", "en": "Long-Term Debt, Maturity, Year Five"}, "dal_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetYearFive": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Five", "en": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net Year Five"}, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Long-Term Debt, Maturity, after Year Five", "en": "Long-Term Debt, Maturity, after Year Five"}, "dal_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNetAfterYearFive": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net After Year Five", "en": "Debt Instrument, Unamortized Discount (Premium) And Debt Issuance Costs, Net After Year Five"}, "us-gaap_FinanceLeaseRightOfUseAsset": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Finance Lease, Right-of-Use Asset, after Accumulated Amortization", "en": "Finance Lease, Right-of-Use Asset, after Accumulated Amortization"}, "dal_LeaseRightOfUseAsset": {"ty": "money", "ba": "debit", "pd": "instant", "ab": false, "jp": "Lease, Right-Of-Use Asset", "en": "Lease, Right-Of-Use Asset"}, "us-gaap_FinanceLeaseLiabilityCurrent": {"ty": "money", "ba": "credit", "pd": "instant", "ab": false, "jp": "Finance Lease, Liability, Current", "en": "Finance Lease, Liability, Current"}, 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}]}]