$DAL
DELTA AIR LINES, INC. Stock $dal

$dal Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000002790417000004 Filed on February 13, 2017

Income Statement

Concept	2016 Q4	2015 Q4	2015 Q3
Revenue	$9.458B	$9.502B	$11.11B
YoY Change	-0.46%	-1.5%	-0.64%
Cost Of Revenue	$4.740B	$3.855B	$4.660B
YoY Change	22.96%	-55.85%	-25.27%
Gross Profit	$4.529B	$5.647B	$6.447B
YoY Change	-19.8%	517.16%	30.45%
Gross Profit Margin	47.89%	59.43%	58.04%
Selling, General & Admin	$2.882B	$2.995B	$3.302B
YoY Change	-3.77%	10.56%	12.73%
% of Gross Profit	63.63%	53.04%	51.22%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.886B	$451.0M	$466.0M
YoY Change	318.18%	2.97%	5.91%
% of Gross Profit	41.64%	7.99%	7.23%
Operating Expenses	$3.454B	$3.839B	$8.894B
YoY Change	-10.03%	5.41%	-14.01%
Operating Profit	$1.020B	$1.717B	$2.213B
YoY Change	-40.59%	-307.37%	165.03%
Interest Expense	-$104.0M	-$193.0M	$121.0M
YoY Change	-46.11%	-110.55%	-21.43%
% of Operating Profit	-10.2%	-11.24%	5.47%
Other Income/Expense, Net	-$302.0M	-$82.00M	-$141.0M
YoY Change	268.29%	-51.76%	-44.92%
Pretax Income	$669.0M	$1.533B	$2.072B
YoY Change	-56.36%	-234.47%	257.86%
Income Tax	$225.0M	$553.0M	$757.0M
% Of Pretax Income	33.63%	36.07%	36.53%
Net Earnings	$622.0M	$980.0M	$1.315B
YoY Change	-36.53%	-237.64%	268.35%
Net Earnings / Revenue	6.58%	10.31%	11.84%
Basic Earnings Per Share	$0.85	$1.26	$1.67
Diluted Earnings Per Share	$0.84	$1.25	$1.65
COMMON SHARES
Basic Shares Outstanding			788.0M shares
Diluted Shares Outstanding			795.0M shares

Balance Sheet

Concept	2016 Q4	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.249B	$3.437B	$3.811B
YoY Change	-5.47%	3.99%	-19.6%
Cash & Equivalents	$2.762B	$1.972B	$2.369B
Short-Term Investments	$487.0M	$1.465B	$1.442B
Other Short-Term Assets	$1.247B	$2.783B	$5.112B
YoY Change	-55.19%	56.44%	60.86%
Inventory	$891.0M	$697.0M	$695.0M
Prepaid Expenses
Receivables	$2.064B	$2.020B	$1.974B
Other Receivables	$0.00	$119.0M	$381.0M
Total Short-Term Assets	$7.451B	$9.056B	$11.97B
YoY Change	-17.72%	-1.11%	8.89%
LONG-TERM ASSETS
Property, Plant & Equipment	$24.38B	$23.04B	$22.61B
YoY Change	5.8%	5.06%	4.08%
Goodwill	$9.794B	$9.794B	$9.794B
YoY Change	0.0%	0.0%	0.0%
Intangibles	$4.844B	$4.861B	$4.589B
YoY Change	-0.35%	5.61%	-0.54%
Long-Term Investments
YoY Change
Other Assets	$1.733B	$1.428B	$1.848B
YoY Change	21.36%	54.21%	65.15%
Total Long-Term Assets	$44.40B	$44.08B	$41.57B
YoY Change	0.73%	-1.71%	1.53%
TOTAL ASSETS
Total Short-Term Assets	$7.451B	$9.056B	$11.97B
Total Long-Term Assets	$44.40B	$44.08B	$41.57B
Total Assets	$51.85B	$53.13B	$53.55B
YoY Change	-2.42%	-1.61%	3.09%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.572B	$2.743B	$2.688B
YoY Change	-6.23%	4.61%	4.31%
Accrued Expenses	$5.262B	$4.501B	$4.169B
YoY Change	16.91%	2.46%	50.23%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.009B	$1.415B	$1.705B
YoY Change	-28.69%	31.63%	45.85%
Total Short-Term Liabilities	$15.24B	$17.53B	$17.61B
YoY Change	-13.05%	4.03%	18.87%
LONG-TERM LIABILITIES
Long-Term Debt	$5.999B	$6.531B	$7.096B
YoY Change	-8.15%	-20.24%	-20.89%
Other Long-Term Liabilities	$1.878B	$1.891B	$2.465B
YoY Change	-0.69%	-11.14%	26.67%
Total Long-Term Liabilities	$23.74B	$24.76B	$25.69B
YoY Change	-4.13%	-12.65%	3.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$15.24B	$17.53B	$17.61B
Total Long-Term Liabilities	$23.74B	$24.76B	$25.69B
Total Liabilities	$38.97B	$42.28B	$43.30B
YoY Change	-7.83%	-6.43%	9.22%
SHAREHOLDERS EQUITY
Retained Earnings	$7.903B	$5.562B	$6.748B
YoY Change	42.09%	60.94%	59.0%
Common Stock	$12.29B	$12.94B	$11.29B
YoY Change	-4.96%	-0.35%	-16.18%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$274.0M	$373.0M	$372.0M
YoY Change	-26.54%	19.17%	19.23%
Treasury Stock Shares	14.15M shares	21.07M shares	21.05M shares
Shareholders Equity	$11.28B	$10.85B	$10.35B
YoY Change
Total Liabilities & Shareholders Equity	$51.26B	$53.13B	$53.65B
YoY Change	-3.53%	-1.61%	3.28%

Cashflow Statement

Concept	2016 Q4	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	$622.0M	$980.0M	$1.315B
YoY Change	-36.53%	-237.64%	268.35%
Depreciation, Depletion And Amortization	$1.886B	$451.0M	$466.0M
YoY Change	318.18%	2.97%	5.91%
Cash From Operating Activities	$1.135B	$1.479B	$2.067B
YoY Change	-23.26%	154.12%	52.21%
INVESTING ACTIVITIES
Capital Expenditures	-$794.0M	-$878.0M	-$562.0M
YoY Change	-9.57%	33.03%	22.98%
Acquisitions
YoY Change
Other Investing Activities	$1.239B	-$301.0M	-$447.0M
YoY Change	-511.63%	-148.39%	-60.3%
Cash From Investing Activities	$445.0M	-$1.179B	-$1.009B
YoY Change	-137.74%	3002.63%	-36.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-446.0M	-697.0M	-982.0M
YoY Change	-36.01%	-27.85%	56.62%
NET CHANGE
Cash From Operating Activities	1.135B	1.479B	2.067B
Cash From Investing Activities	445.0M	-1.179B	-1.009B
Cash From Financing Activities	-446.0M	-697.0M	-982.0M
Net Change In Cash	1.134B	-397.0M	76.00M
YoY Change	-385.64%	-5.92%	-108.92%
FREE CASH FLOW
Cash From Operating Activities	$1.135B	$1.479B	$2.067B
Capital Expenditures	-$794.0M	-$878.0M	-$562.0M
Free Cash Flow	$1.929B	$2.357B	$2.629B
YoY Change	-18.16%	89.77%	44.85%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014	dal	Non Cash Income Tax Expense Recorded In Other Comprehensive Income NonCashIncomeTaxExpenseRecordedInOtherComprehensiveIncome	4000000	USD
CY2015	dal	Non Cash Income Tax Expense Recorded In Other Comprehensive Income NonCashIncomeTaxExpenseRecordedInOtherComprehensiveIncome	16000000	USD
CY2016	dal	Non Cash Income Tax Expense Recorded In Other Comprehensive Income NonCashIncomeTaxExpenseRecordedInOtherComprehensiveIncome	57000000	USD
CY2016	dal	Percent Of Amount Above Annual Pre Tax Profit For Profit Sharing Payout PercentOfAmountAboveAnnualPreTaxProfitForProfitSharingPayout	0.2
CY2015	dal	Percent Of Amount Above Threshold For Profit Sharing Payout PercentOfAmountAboveThresholdForProfitSharingPayout	0.2
CY2016	dal	Percent Of Annual Pre Tax Profit For Profit Sharing Payout PercentOfAnnualPreTaxProfitForProfitSharingPayout	0.1
CY2015	dal	Percent Of Threshold Amount For Profit Sharing Payout PercentOfThresholdAmountForProfitSharingPayout	0.1
CY2015Q4	dal	Profit Sharing Threshold ProfitSharingThreshold	2500000000.0	USD
CY2014	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	31.46
CY2015	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	46.83
CY2016	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	44.27
CY2016	dei	Amendment Flag AmendmentFlag	false
CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0000027904
CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016	dei	Entity Registrant Name EntityRegistrantName	DELTA AIR LINES INC /DE/
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	us-gaap	Advertising Expense AdvertisingExpense	225000000	USD
CY2015Q4	us-gaap	Airline Related Inventory Valuation Reserves AirlineRelatedInventoryValuationReserves	114000000	USD
CY2016Q4	us-gaap	Airline Related Inventory Valuation Reserves AirlineRelatedInventoryValuationReserves	110000000	USD
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	9000000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	15000000	USD
CY2015Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2015Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1500000000	shares
CY2015Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	799850675	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	744886938	shares
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	16000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	16000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	16000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	16000000	USD
CY2016	us-gaap	Operating Loss Carryforwards Expiration Date OperatingLossCarryforwardsExpirationDate	2027-01-01
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1276000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	41000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	293000000	USD
CY2015Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	21066684	shares
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	14149229	shares
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016Q2	dei	Entity Public Float EntityPublicFloat	27300000000	USD
CY2017Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	730770638	shares
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2762000000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1972000000	USD
CY2016Q4	us-gaap	Short Term Investments ShortTermInvestments	487000000	USD
CY2015Q4	us-gaap	Short Term Investments ShortTermInvestments	1465000000	USD
CY2016Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	2064000000	USD
CY2015Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	2020000000	USD
CY2016Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	519000000	USD
CY2015Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	379000000	USD
CY2016Q4	us-gaap	Airline Related Inventory Net AirlineRelatedInventoryNet	372000000	USD
CY2015Q4	us-gaap	Airline Related Inventory Net AirlineRelatedInventoryNet	318000000	USD
CY2016Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	393000000	USD
CY2015Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1987000000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	854000000	USD
CY2015Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	915000000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	7451000000	USD
CY2015Q4	us-gaap	Assets Current AssetsCurrent	9056000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24375000000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23039000000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	9794000000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	9794000000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4844000000	USD
CY2015Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4861000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	3064000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	4956000000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1733000000	USD
CY2015Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1428000000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	19435000000	USD
CY2015Q4	us-gaap	Other Assets OtherAssets	21039000000	USD
CY2016Q4	us-gaap	Assets Assets	51261000000	USD
CY2015Q4	us-gaap	Assets Assets	53134000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1131000000	USD
CY2015Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1563000000	USD
CY2016Q4	us-gaap	Air Traffic Liability Current AirTrafficLiabilityCurrent	4626000000	USD
CY2015Q4	us-gaap	Air Traffic Liability Current AirTrafficLiabilityCurrent	4503000000	USD
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2572000000	USD
CY2015Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2743000000	USD
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2924000000	USD
CY2015Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	3195000000	USD
CY2016Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	688000000	USD
CY2015Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	2581000000	USD
CY2016Q4	us-gaap	Frequent Flier Liability Current FrequentFlierLiabilityCurrent	1648000000	USD
CY2015Q4	us-gaap	Frequent Flier Liability Current FrequentFlierLiabilityCurrent	1635000000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1650000000	USD
CY2015Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1306000000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	15239000000	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	17526000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	6201000000	USD
CY2015Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	6766000000	USD
CY2016Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	13378000000	USD
CY2015Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	13855000000	USD
CY2016Q4	us-gaap	Frequent Flier Liability Noncurrent FrequentFlierLiabilityNoncurrent	2278000000	USD
CY2015Q4	us-gaap	Frequent Flier Liability Noncurrent FrequentFlierLiabilityNoncurrent	2246000000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1878000000	USD
CY2015Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1891000000	USD
CY2016Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	23735000000	USD
CY2015Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	24758000000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	12294000000	USD
CY2015Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	12936000000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7903000000	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5562000000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7636000000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7275000000	USD
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	274000000	USD
CY2015Q4	us-gaap	Treasury Stock Value TreasuryStockValue	373000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	12287000000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	10850000000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	51261000000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	53134000000	USD
CY2016	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	28105000000	USD
CY2015	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	28898000000	USD
CY2014	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	28688000000	USD
CY2016	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	5672000000	USD
CY2015	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	5884000000	USD
CY2014	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	6266000000	USD
CY2016	us-gaap	Passenger Revenue PassengerRevenue	33777000000	USD
CY2015	us-gaap	Passenger Revenue PassengerRevenue	34782000000	USD
CY2014	us-gaap	Passenger Revenue PassengerRevenue	34954000000	USD
CY2016	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	668000000	USD
CY2015	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	813000000	USD
CY2014	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	934000000	USD
CY2016	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	5194000000	USD
CY2015	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	5109000000	USD
CY2014	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	4474000000	USD
CY2016	us-gaap	Revenues Revenues	39639000000	USD
CY2015	us-gaap	Revenues Revenues	40704000000	USD
CY2014	us-gaap	Revenues Revenues	40362000000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	10034000000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	8776000000	USD
CY2014	us-gaap	Labor And Related Expense LaborAndRelatedExpense	8120000000	USD
CY2016	us-gaap	Fuel Costs FuelCosts	5133000000	USD
CY2015	us-gaap	Fuel Costs FuelCosts	6544000000	USD
CY2014	us-gaap	Fuel Costs FuelCosts	11668000000	USD
CY2016	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	4311000000	USD
CY2015	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	4241000000	USD
CY2014	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	5237000000	USD
CY2016	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1991000000	USD
CY2015	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1848000000	USD
CY2014	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1749000000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1902000000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1835000000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1771000000	USD
CY2016	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1823000000	USD
CY2015	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1848000000	USD
CY2014	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1828000000	USD
CY2016	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1710000000	USD
CY2015	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1672000000	USD
CY2014	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1700000000	USD
CY2016	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1490000000	USD
CY2015	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1493000000	USD
CY2014	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1442000000	USD
CY2016	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	1115000000	USD
CY2015	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	1490000000	USD
CY2014	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	1085000000	USD
CY2016	us-gaap	Cost Of Services Catering CostOfServicesCatering	907000000	USD
CY2015	us-gaap	Cost Of Services Catering CostOfServicesCatering	872000000	USD
CY2014	us-gaap	Cost Of Services Catering CostOfServicesCatering	810000000	USD
CY2016	us-gaap	Aircraft Rental AircraftRental	285000000	USD
CY2015	us-gaap	Aircraft Rental AircraftRental	250000000	USD
CY2014	us-gaap	Aircraft Rental AircraftRental	233000000	USD
CY2016	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2015	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	35000000	USD
CY2014	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	716000000	USD
CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1986000000	USD
CY2015	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1998000000	USD
CY2014	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1797000000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	32687000000	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	32902000000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	38156000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	6952000000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	7802000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	2206000000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-388000000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-481000000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4562000000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1522000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4012000000	USD
CY2014	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-650000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	72000000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-164000000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-484000000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-316000000	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-645000000	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1134000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6636000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7157000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1072000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2263000000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2631000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	413000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	4373000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	4526000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.82
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.68
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.79
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.63
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.68
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2016	us-gaap	Net Income Loss NetIncomeLoss	4373000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	4526000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-43000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-82000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	3000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	360000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-163000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2194000000	USD
CY2016	us-gaap	Gain Loss On Investments GainLossOnInvestments	42000000	USD
CY2015	us-gaap	Gain Loss On Investments GainLossOnInvestments	-45000000	USD
CY2014	us-gaap	Gain Loss On Investments GainLossOnInvestments	10000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-361000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	36000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2181000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	4373000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	4526000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1902000000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1835000000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1771000000	USD
CY2016	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	342000000	USD
CY2015	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	1366000000	USD
CY2014	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2186000000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2223000000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2581000000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	414000000	USD
CY2016	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	717000000	USD
CY2015	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	1013000000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	723000000	USD
CY2016	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	0	USD
CY2015	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	35000000	USD
CY2014	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	758000000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-22000000	USD
CY2014	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-268000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	160000000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	35000000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-106000000	USD
CY2016	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	147000000	USD
CY2015	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	56000000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	302000000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	11000000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-7000000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-62000000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	140000000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-155000000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-172000000	USD
CY2016	us-gaap	Increase Decrease In Margin Deposits Outstanding IncreaseDecreaseInMarginDepositsOutstanding	-81000000	USD
CY2015	us-gaap	Increase Decrease In Margin Deposits Outstanding IncreaseDecreaseInMarginDepositsOutstanding	-806000000	USD
CY2014	us-gaap	Increase Decrease In Margin Deposits Outstanding IncreaseDecreaseInMarginDepositsOutstanding	922000000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	26000000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	102000000	USD
CY2014	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-58000000	USD
CY2016	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	123000000	USD
CY2015	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	207000000	USD
CY2014	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	174000000	USD
CY2016	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	45000000	USD
CY2015	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	-301000000	USD
CY2014	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	-238000000	USD
CY2016	dal	Increase Decrease In Profit Sharing IncreaseDecreaseInProfitSharing	-383000000	USD
CY2015	dal	Increase Decrease In Profit Sharing IncreaseDecreaseInProfitSharing	734000000	USD
CY2014	dal	Increase Decrease In Profit Sharing IncreaseDecreaseInProfitSharing	264000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	285000000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-201000000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-36000000	USD
CY2016	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	99000000	USD
CY2015	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	93000000	USD
CY2014	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	276000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7205000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7927000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4947000000	USD
CY2016	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	2617000000	USD
CY2015	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	2223000000	USD
CY2014	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	1662000000	USD
CY2016	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	774000000	USD
CY2015	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	722000000	USD
CY2014	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	587000000	USD
CY2016	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2015	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	500000000	USD
CY2014	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1707000000	USD
CY2015	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	998000000	USD
CY2014	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1795000000	USD
CY2016	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2686000000	USD
CY2015	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	739000000	USD
CY2014	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1533000000	USD
CY2016	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	0	USD
CY2015	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	276000000	USD
CY2014	us-gaap	Payments For Proceeds From Previous Acquisition PaymentsForProceedsFromPreviousAcquisition	0	USD
CY2016	us-gaap	Proceeds From Sale Of Flight Equipment ProceedsFromSaleOfFlightEquipment	226000000	USD
CY2015	us-gaap	Proceeds From Sale Of Flight Equipment ProceedsFromSaleOfFlightEquipment	0	USD
CY2014	us-gaap	Proceeds From Sale Of Flight Equipment ProceedsFromSaleOfFlightEquipment	0	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-31000000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-25000000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-48000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2155000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3955000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2463000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	1709000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2558000000	USD
CY2014	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2928000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2601000000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2200000000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1100000000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	509000000	USD
CY2014	us-gaap	Dividends Dividends	252000000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	359000000	USD
CY2014	us-gaap	Payments Of Dividends PaymentsOfDividends	251000000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	211000000	USD
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-340000000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-41000000	USD
CY2016	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	451000000	USD
CY2015	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	71000000	USD
CY2014	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	0	USD
CY2016	us-gaap	Proceeds From Derivative Instrument Financing Activities ProceedsFromDerivativeInstrumentFinancingActivities	291000000	USD
CY2015	us-gaap	Proceeds From Derivative Instrument Financing Activities ProceedsFromDerivativeInstrumentFinancingActivities	429000000	USD
CY2014	us-gaap	Proceeds From Derivative Instrument Financing Activities ProceedsFromDerivativeInstrumentFinancingActivities	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	450000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1038000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1020000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	58000000	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-27000000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	60000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4260000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4088000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3240000000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	790000000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-116000000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-756000000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1972000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2088000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2844000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2762000000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1972000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2088000000	USD
CY2016	us-gaap	Interest Paid InterestPaid	385000000	USD
CY2015	us-gaap	Interest Paid InterestPaid	452000000	USD
CY2014	us-gaap	Interest Paid InterestPaid	560000000	USD
CY2016	dal	Contribution Of Treasury Stock To Pension Plan Amount Contributed ContributionOfTreasuryStockToPensionPlanAmountContributed	350000000	USD
CY2015	dal	Contribution Of Treasury Stock To Pension Plan Amount Contributed ContributionOfTreasuryStockToPensionPlanAmountContributed	0	USD
CY2014	dal	Contribution Of Treasury Stock To Pension Plan Amount Contributed ContributionOfTreasuryStockToPensionPlanAmountContributed	0	USD
CY2016	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	86000000	USD
CY2015	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	111000000	USD
CY2014	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	28000000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	11643000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	659000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2181000000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	26000000	USD
CY2014	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	18000000	USD
CY2014	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1100000000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	8813000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	4526000000	USD
CY2015	us-gaap	Dividends Dividends	359000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	36000000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	16000000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	18000000	USD
CY2015	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2200000000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	10850000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	4373000000	USD
CY2016	us-gaap	Cumulative Effect On Retained Earnings Net Of Tax1 CumulativeEffectOnRetainedEarningsNetOfTax1	95000000	USD
CY2016	us-gaap	Dividends Dividends	509000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-361000000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	65000000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	32000000	USD
CY2016	dal	Treasury Stock Contributedto Qualified Defined Benefit Pension Plan Amount TreasuryStockContributedtoQualifiedDefinedBenefitPensionPlanAmount	343000000	USD
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	2601000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	12287000000	USD
CY2016	dal	Ownership Interest Percent Threshold To Consolidate OwnershipInterestPercentThresholdToConsolidate	0.50
CY2016	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>We are required to make estimates and assumptions when preparing our Consolidated Financial Statements in accordance with GAAP. These estimates and assumptions affect the amounts reported in our Consolidated Financial Statements and the accompanying notes. Actual results could differ materially from those estimates.
CY2016	dal	Effective Income Tax Rate Reconciliation Sharebased Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount	33000000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12456000000	USD
CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10871000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24375000000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23039000000	USD
CY2016	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1900000000	USD
CY2015	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1800000000	USD
CY2014	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1700000000	USD
CY2016	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	160000000	USD
CY2015	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	148000000	USD
CY2014	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	129000000	USD
CY2016Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	549000000	USD
CY2015Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	420000000	USD
CY2016	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<span style="font-family:inherit;font-size:10pt;">We review flight equipment and other long-lived assets used in operations for impairment losses when events and circumstances indicate the assets may be impaired. Factors which could be indicators of impairment include, but are not limited to, (1) a decision to permanently remove flight equipment or other long-lived assets from operations, (2) significant changes in the estimated useful life, (3) significant changes in projected cash flows, (4) permanent and significant declines in fleet fair values and (5) changes to the regulatory environment. For long-lived assets held for sale, we discontinue depreciation and record impairment losses when the carrying amount of these assets is greater than the fair value less the cost to sell.</span><span style="font-family:inherit;font-size:10pt;"> </span><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">To determine whether impairments exist for aircraft used in operations, we group assets at the fleet-type level (the lowest level for which there are identifiable cash flows) and then estimate future cash flows based on projections of capacity, passenger mile yield, fuel costs, labor costs and other relevant factors. If an impairment occurs, the impairment loss recognized is the amount by which the fleet's carrying amount exceeds its estimated fair value. We estimate aircraft fair values using published sources, appraisals and bids received from third parties, as available.</span>
CY2016	us-gaap	Revenue Recognition Sales Of Services RevenueRecognitionSalesOfServices	Passenger Tickets<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>We record sales of passenger tickets in air traffic liability. Passenger revenue is recognized when we provide transportation or when the ticket expires unused, reducing the related air traffic liability. We periodically evaluate the estimated air traffic liability and record any adjustments in our Consolidated Statements of Operations. These adjustments relate primarily to refunds, exchanges, transactions with other airlines and other items for which final settlement occurs in periods subsequent to the sale of the related tickets at amounts other than the original sales price.
CY2016	us-gaap	Revenue Recognition Loyalty Programs RevenueRecognitionLoyaltyPrograms	Frequent Flyer Program<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our SkyMiles program offers incentives to travel on Delta. This program allows customers to earn mileage credits by flying on Delta, Delta Connection and airlines that participate in the SkyMiles program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines. Effective January 1, 2015, the SkyMiles program was modified from a model in which customers earn redeemable mileage credits based on distance traveled to a model based on ticket price. This award change did not affect the way we account for the program. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The SkyMiles program includes two types of transactions that are considered revenue arrangements with multiple deliverables. As discussed below, these are (1) passenger ticket sales earning mileage credits and (2) the sale of mileage credits to participating companies with which we have marketing agreements. Mileage credits are a separate unit of accounting as they can be redeemed by customers in future periods for air travel on Delta and participating airlines, membership in our Sky Club and other program awards. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Passenger Ticket Sales Earning Mileage Credits. </span><span style="font-family:inherit;font-size:10pt;">Passenger ticket sales earning mileage credits under our SkyMiles program provide customers with (1) mileage credits earned and (2) air transportation. We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.</span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We defer revenue for the mileage credits related to passenger ticket sales when the credits are earned and recognize it as passenger revenue when miles are redeemed and services are provided. We record the air transportation portion of the passenger ticket sales in air traffic liability and recognize these amounts in passenger revenue when we provide transportation or when the ticket expires unused. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Sale of Mileage Credits.</span><span style="font-family:inherit;font-size:10pt;"> Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.</span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted discounted access to Delta Sky Club lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles program. As a result, we sell mileage credits at agreed-upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.</span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In December 2014, we amended our marketing agreements with American Express, which increased the value we receive under the agreements and extended the term to 2022. The amended agreements became effective January 1, 2015. We account for the agreements consistent with the accounting method that allocates the consideration received to the individual products and services delivered based on their relative selling prices. We determined our best estimate of the selling prices by considering discounted cash flow analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, discounted access to Delta Sky Club lounges and other benefits while traveling on Delta and (4) brand value. The increased value received under the amended agreements increases the amount of deferred revenue for the travel component and increases the value of the other deliverables. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We recognize revenue as we deliver each sales element. We defer the travel deliverable (mileage credits) as part of frequent flyer deferred revenue and recognize passenger revenue as the mileage credits are used for travel. The revenue allocated to the remaining deliverables is recorded in other revenue. We recognize the revenue for these services as they are performed.</span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;font-style:italic;">Breakage. </span>For mileage credits that we estimate are not likely to be redeemed ("breakage"), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.
CY2016	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	Passenger Ticket Sales Earning Mileage Credits. <span style="font-family:inherit;font-size:10pt;">Passenger ticket sales earning mileage credits under our SkyMiles program provide customers with (1) mileage credits earned and (2) air transportation. We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.</span><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We defer revenue for the mileage credits related to passenger ticket sales when the credits are earned and recognize it as passenger revenue when miles are redeemed and services are provided. We record the air transportation portion of the passenger ticket sales in air traffic liability and recognize these amounts in passenger revenue when we provide transportation or when the ticket expires unused. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Sale of Mileage Credits.</span><span style="font-family:inherit;font-size:10pt;"> Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.</span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted discounted access to Delta Sky Club lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles program. As a result, we sell mileage credits at agreed-upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.</span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In December 2014, we amended our marketing agreements with American Express, which increased the value we receive under the agreements and extended the term to 2022. The amended agreements became effective January 1, 2015. We account for the agreements consistent with the accounting method that allocates the consideration received to the individual products and services delivered based on their relative selling prices. We determined our best estimate of the selling prices by considering discounted cash flow analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, discounted access to Delta Sky Club lounges and other benefits while traveling on Delta and (4) brand value. The increased value received under the amended agreements increases the amount of deferred revenue for the travel component and increases the value of the other deliverables. </span></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We recognize revenue as we deliver each sales element. We defer the travel deliverable (mileage credits) as part of frequent flyer deferred revenue and recognize passenger revenue as the mileage credits are used for travel. The revenue allocated to the remaining deliverables is recorded in other revenue. We recognize the revenue for these services as they are performed.</span></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;font-style:italic;">Breakage. </span>For mileage credits that we estimate are not likely to be redeemed ("breakage"), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.
CY2016	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	Advertising Costs<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>We expense advertising costs in passenger commissions and other selling expenses in the year incurred.
CY2016	us-gaap	Advertising Expense AdvertisingExpense	277000000	USD
CY2015	us-gaap	Advertising Expense AdvertisingExpense	225000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	2279000000	USD
CY2016Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	61000000	USD
CY2016Q4	us-gaap	Price Risk Derivatives At Fair Value Net PriceRiskDerivativesAtFairValueNet	-324000000	USD
CY2016Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	6000000	USD
CY2016Q4	us-gaap	Foreign Currency Cash Flow Hedge Derivative At Fair Value Net ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet	27000000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	1543000000	USD
CY2015Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	49000000	USD
CY2015Q4	us-gaap	Price Risk Derivatives At Fair Value Net PriceRiskDerivativesAtFairValueNet	-672000000	USD
CY2015Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-3000000	USD
CY2015Q4	us-gaap	Foreign Currency Cash Flow Hedge Derivative At Fair Value Net ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet	94000000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	160000000	USD
CY2016Q4	dal	Available For Sale Securities Debt Maturities After One Year Through Three Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneYearThroughThreeYearsFairValue	239000000	USD
CY2016Q4	dal	Available For Sale Securities Debt Maturities After Three Years Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterThreeYearsThroughFiveYearsFairValue	65000000	USD
CY2016Q4	dal	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	23000000	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	487000000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-291000000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-581000000	USD
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-291000000	USD
CY2015Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-581000000	USD
CY2016	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	37000000	USD
CY2015	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	198000000	USD
CY2014	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	127000000	USD
CY2016	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-68000000	USD
CY2015	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-130000000	USD
CY2014	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	4000000	USD
CY2016	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	27000000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	38000000	USD
CY2015Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	119000000	USD
CY2016Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	4696000000	USD
CY2015Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	4696000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	976000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	828000000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	976000000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	811000000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18000000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	16000000	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	7112000000	USD
CY2015Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	8098000000	USD
CY2016Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	104000000	USD
CY2015Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	152000000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	7008000000	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	7946000000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1009000000	USD
CY2015Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1415000000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5999000000	USD
CY2015Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	6531000000	USD
CY2016	dal	Debt Instrument Periodic Payment Percentage Of Principal DebtInstrumentPeriodicPaymentPercentageOfPrincipal	0.01
CY2016Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	2463000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1038000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net Year One DebtInstrumentAmortizationDiscountPremiumNetYearOne	28000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2160000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net Year Two DebtInstrumentAmortizationDiscountPremiumNetYearTwo	35000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1289000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net Year Three DebtInstrumentAmortizationDiscountPremiumNetYearThree	23000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	527000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net Year Four DebtInstrumentAmortizationDiscountPremiumNetYearFour	5000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	345000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net After Year Five DebtInstrumentAmortizationDiscountPremiumNetAfterYearFive	8000000	USD
CY2016Q4	dal	Debt Instrument Amortization Discount Premium Net Year Five DebtInstrumentAmortizationDiscountPremiumNetYearFive	5000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1753000000	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	7112000000	USD
CY2016Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	104000000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	7008000000	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	7112000000	USD
CY2015Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	8098000000	USD
CY2016Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	104000000	USD
CY2015Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	152000000	USD
CY2016Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	7008000000	USD
CY2015Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	7946000000	USD
CY2016Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	7300000000	USD
CY2015Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	8400000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1300000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1200000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	145000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	85000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	60000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	43000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	24000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	21000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	378000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	54000000	USD
CY2016Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	324000000	USD
CY2016Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	122000000	USD
CY2016Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	202000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1572000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1443000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1304000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1133000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	862000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	6781000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	13095000000	USD
CY2010Q4	dal	Special Project Bonds Face Amount Issued By Others SpecialProjectBondsFaceAmountIssuedByOthers	800000000	USD
CY2016Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	722000000	USD
CY2016Q4	us-gaap	Contractual Obligation ContractualObligation	742000000	USD
CY2016	dal	Unfunded Liability Defined Benefit Plan Interest Rate UnfundedLiabilityDefinedBenefitPlanInterestRate	0.0885
CY2016	us-gaap	Defined Benefit Plans Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear	1200000000	USD
CY2016	dal	Defined Benefit Plans Estimated Future Employer Contributionsin Next Fiscal Year Above Minimum DefinedBenefitPlansEstimatedFutureEmployerContributionsinNextFiscalYearAboveMinimum	700000000	USD
CY2016	dal	Assumed Health Care Plan Pre Age AssumedHealthCarePlanPreAge	P65Y0M0D
CY2016	dal	Assumed Health Care Plan Post Age AssumedHealthCarePlanPostAge	P65Y0M0D
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CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3391000000	USD
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CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-28000000	USD
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CY2016	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
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$DAL
DELTA AIR LINES, INC. Stock $dal

2016 Q4 Form 10-K Financial Statement

#000002790417000004 Filed on February 13, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DAL DELTA AIR LINES, INC. Stock $dal

2016 Q4 Form 10-K Financial Statement

#000002790417000004 Filed on February 13, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DAL
DELTA AIR LINES, INC. Stock $dal