$DAL
DELTA AIR LINES, INC. Stock $dal

$dal Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000144530513000209 Filed on February 13, 2013

Income Statement

Concept	2012 Q4	2011 Q4	2011 Q3
Revenue	$8.602B	$8.399B	$9.816B
YoY Change	2.42%	7.83%	9.68%
Cost Of Revenue	$5.103B	$4.647B	$5.781B
YoY Change	9.81%	3.94%	23.66%
Gross Profit	$3.499B	$3.752B	$4.035B
YoY Change	-6.74%	13.08%	-5.61%
Gross Profit Margin	40.68%	44.67%	41.11%
Selling, General & Admin	$2.268B	$2.193B	$2.364B
YoY Change	3.42%	3.93%	4.69%
% of Gross Profit	64.82%	58.45%	58.59%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$399.0M	$382.0M	$384.0M
YoY Change	4.45%	2.69%	2.4%
% of Gross Profit	11.4%	10.18%	9.52%
Operating Expenses	$3.026B	$2.938B	$8.956B
YoY Change	3.0%	0.75%	12.7%
Operating Profit	$352.0M	$726.0M	$860.0M
YoY Change	-51.52%	146.94%	-14.26%
Interest Expense	-$234.0M	-$270.0M	-$307.0M
YoY Change	-13.33%	1.89%	1.66%
% of Operating Profit	-66.48%	-37.19%	-35.7%
Other Income/Expense, Net	$0.00	-$9.000M	-$313.0M
YoY Change	-100.0%	-139.13%	-50.86%
Pretax Income	$11.00M	$417.0M	$547.0M
YoY Change	-97.36%	1885.71%	49.45%
Income Tax	$5.000M	-$8.000M	-$2.000M
% Of Pretax Income	45.45%	-1.92%	-0.37%
Net Earnings	$7.000M	$425.0M	$549.0M
YoY Change	-98.35%	2136.84%	51.24%
Net Earnings / Revenue	0.08%	5.06%	5.59%
Basic Earnings Per Share	$0.01	$0.51	$0.66
Diluted Earnings Per Share	$0.01	$0.50	$0.65
COMMON SHARES
Basic Shares Outstanding			838.0M shares
Diluted Shares Outstanding			844.0M shares

Balance Sheet

Concept	2012 Q4	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.374B	$3.615B	$3.265B
YoY Change	-6.67%	0.14%	-15.74%
Cash & Equivalents	$2.416B	$2.657B	$2.307B
Short-Term Investments	$958.0M	$958.0M	$958.0M
Other Short-Term Assets	$2.182B	$2.184B	$1.868B
YoY Change	-0.09%	13.57%	12.8%
Inventory	$1.023B	$367.0M	$380.0M
Prepaid Expenses
Receivables	$1.693B	$1.563B	$1.816B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$8.272B	$7.729B	$7.329B
YoY Change	7.03%	5.78%	0.11%
LONG-TERM ASSETS
Property, Plant & Equipment	$20.71B	$20.22B	$20.26B
YoY Change	2.42%	-0.41%	0.36%
Goodwill	$9.794B	$9.794B	$9.794B
YoY Change	0.0%	0.0%
Intangibles	$4.679B	$4.751B	$4.697B
YoY Change	-1.52%	0.04%
Long-Term Investments	$360.0M
YoY Change
Other Assets	$1.092B	$1.002B	$960.0M
YoY Change	8.98%	-2.81%	-11.76%
Total Long-Term Assets	$36.28B	$35.77B	$35.71B
YoY Change	1.42%	-0.31%	-0.35%
TOTAL ASSETS
Total Short-Term Assets	$8.272B	$7.729B	$7.329B
Total Long-Term Assets	$36.28B	$35.77B	$35.71B
Total Assets	$44.55B	$43.50B	$43.04B
YoY Change	2.42%	0.72%	-0.27%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.293B	$1.600B	$1.641B
YoY Change	43.31%	-6.6%	-1.2%
Accrued Expenses	$2.808B	$2.916B	$2.064B
YoY Change	-3.7%	44.07%	9.32%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.507B	$1.827B	$1.937B
YoY Change	-17.52%	-6.5%	-15.86%
Total Short-Term Liabilities	$13.27B	$12.70B	$12.01B
YoY Change	4.48%	11.56%	1.62%
LONG-TERM LIABILITIES
Long-Term Debt	$10.60B	$11.23B	$12.56B
YoY Change	-5.64%	-10.52%	-3.87%
Other Long-Term Liabilities	$1.649B	$1.419B	$1.424B
YoY Change	16.21%	-7.44%	-91.0%
Total Long-Term Liabilities	$33.41B	$32.19B	$29.80B
YoY Change	3.78%	4.17%	3.18%
TOTAL LIABILITIES
Total Short-Term Liabilities	$13.27B	$12.70B	$12.01B
Total Long-Term Liabilities	$33.41B	$32.19B	$29.80B
Total Liabilities	$46.68B	$44.90B	$41.81B
YoY Change	3.98%	6.16%	-1.47%
SHAREHOLDERS EQUITY
Retained Earnings	-$7.389B	-$8.398B	-$8.823B
YoY Change	-12.01%	-9.23%
Common Stock	$14.07B	$14.00B	$13.98B
YoY Change	0.5%	0.52%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$234.0M	$231.0M	$214.0M
YoY Change	1.3%	16.08%	8.08%
Treasury Stock Shares	16.46M shares	16.25M shares	14.29M shares
Shareholders Equity	-$2.131B	-$1.396B	$1.222B
YoY Change
Total Liabilities & Shareholders Equity	$44.55B	$43.50B	$43.04B
YoY Change	2.42%	0.72%	-0.27%

Cashflow Statement

Concept	2012 Q4	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	$7.000M	$425.0M	$549.0M
YoY Change	-98.35%	2136.84%	51.24%
Depreciation, Depletion And Amortization	$399.0M	$382.0M	$384.0M
YoY Change	4.45%	2.69%	2.4%
Cash From Operating Activities	$550.0M	$1.158B	-$98.00M
YoY Change	-52.5%	264.15%	-119.07%
INVESTING ACTIVITIES
Capital Expenditures	-$538.0M	-$368.0M	-$233.0M
YoY Change	46.2%	-12.59%	-41.31%
Acquisitions
YoY Change
Other Investing Activities	$5.000M	-$44.00M	$21.00M
YoY Change	-111.36%	-82.26%	-105.19%
Cash From Investing Activities	-$533.0M	-$412.0M	-$212.0M
YoY Change	29.37%	-38.42%	-73.57%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	125.0M	-396.0M	-238.0M
YoY Change	-131.57%	105.18%	-66.48%
NET CHANGE
Cash From Operating Activities	550.0M	1.158B	-98.00M
Cash From Investing Activities	-533.0M	-412.0M	-212.0M
Cash From Financing Activities	125.0M	-396.0M	-238.0M
Net Change In Cash	142.0M	350.0M	-548.0M
YoY Change	-59.43%	-164.34%	-45.09%
FREE CASH FLOW
Cash From Operating Activities	$550.0M	$1.158B	-$98.00M
Capital Expenditures	-$538.0M	-$368.0M	-$233.0M
Free Cash Flow	$1.088B	$1.526B	$135.0M
YoY Change	-28.7%	106.5%	-85.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1600000000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2293000000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6656000000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	5472000000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-345000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-413000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-312000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-286000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3899000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	5147000000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	2011000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	2053000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6766000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-8577000000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3563000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3578000000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	14069000000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	13999000000	USD
CY2012	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	1968000000	USD
CY2012	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Advertising Costs</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We expense advertising costs as other selling expenses in the year incurred. Advertising expense was </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$235 million</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$214 million</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$169 million</font><font style="font-family:inherit;font-size:10pt;"> for the years ended </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">December 31, 2012</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2010</font><font style="font-family:inherit;font-size:10pt;">, respectively.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2011	us-gaap	Advertising Expense AdvertisingExpense	214000000	USD
CY2010	us-gaap	Advertising Expense AdvertisingExpense	169000000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	235000000	USD
CY2011Q4	us-gaap	Air Traffic Liability Current AirTrafficLiabilityCurrent	3480000000	USD
CY2012Q4	us-gaap	Air Traffic Liability Current AirTrafficLiabilityCurrent	3696000000	USD
CY2012	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1955000000	USD
CY2010	us-gaap	Aircraft Rental AircraftRental	387000000	USD
CY2012	us-gaap	Aircraft Rental AircraftRental	272000000	USD
CY2012	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	5647000000	USD
CY2010	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	4305000000	USD
CY2011	us-gaap	Airline Capacity Purchase Arrangements AirlineCapacityPurchaseArrangements	5470000000	USD
CY2010	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1569000000	USD
CY2011	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	1765000000	USD
CY2011	us-gaap	Aircraft Rental AircraftRental	298000000	USD
CY2012Q4	us-gaap	Airline Related Inventory Net AirlineRelatedInventoryNet	404000000	USD
CY2011	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	64000000	USD
CY2011Q4	us-gaap	Airline Related Inventory Net AirlineRelatedInventoryNet	367000000	USD
CY2012Q4	us-gaap	Airline Related Inventory Valuation Reserves AirlineRelatedInventoryValuationReserves	127000000	USD
CY2011Q4	us-gaap	Airline Related Inventory Valuation Reserves AirlineRelatedInventoryValuationReserves	101000000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	36000000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	33000000	USD
CY2011	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	193000000	USD
CY2010	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	216000000	USD
CY2012	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	193000000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70000000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70000000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70000000	USD
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	22000000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	17000000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	18000000	shares
CY2011Q4	us-gaap	Assets Assets	43499000000	USD
CY2012Q4	us-gaap	Assets Assets	44550000000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	8272000000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	7729000000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	180000000	USD
CY2012	us-gaap	Business Acquisition Date Of Acquisition Agreement1 BusinessAcquisitionDateOfAcquisitionAgreement1	2012-06-22
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	120000000	USD
CY2012	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	28000000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	117000000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	329000000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	483000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	914000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	209000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	97000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	164000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	158000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	173000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	113000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	313000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	601000000	USD
CY2010	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	71000000	USD
CY2012	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	990000000	USD
CY2012	us-gaap	Capitalized Computer Software Amortization CapitalizedComputerSoftwareAmortization	76000000	USD
CY2012Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	344000000	USD
CY2011Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	200000000	USD
CY2010	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	850000000	USD
CY2011	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	1027000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2416000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2657000000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2892000000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4607000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	2176000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	2357000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-241000000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1715000000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-235000000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies	0	USD
CY2012Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	31000000	shares
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1500000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1500000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	867866505	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	861499734	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2012	us-gaap	Comparability Of Prior Year Financial Data ComparabilityOfPriorYearFinancialData	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On July 1, 2010, we sold Compass Airlines, Inc. (“Compass”) and Mesaba Aviation, Inc. (“Mesaba”), our wholly-owned subsidiaries, to Trans States Airlines, Inc. (“Trans States”) and Pinnacle Airlines Corp. (“Pinnacle”), respectively. Upon the closing of these transactions, we entered into new or amended long-term capacity purchase agreements with Compass, Mesaba and Pinnacle. Prior to these sales, expenses related to Compass and Mesaba as our wholly-owned subsidiaries were reported in the applicable expense line items. Subsequent to these sales, expenses related to Compass and Mesaba are reported as contract carrier arrangements expense. </font><font style="font-family:inherit;font-size:10pt;color:#ff0000;"> </font></div></div>
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	578000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-802000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-2334000000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	585000000	USD
CY2012Q4	us-gaap	Construction Payable Current And Noncurrent ConstructionPayableCurrentAndNoncurrent	473000000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-1000000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-83000000	USD
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	13797000000	USD
CY2012Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	12633000000	USD
CY2012	us-gaap	Debt Instrument Covenant Compliance DebtInstrumentCovenantCompliance	We were in compliance with all covenants in our financing agreements at December 31, 2012
CY2012Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	13000000000	USD
CY2011Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	13600000000	USD
CY2012Q4	us-gaap	Debt Instrument Repurchase Amount DebtInstrumentRepurchaseAmount	294000000	USD
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	737000000	USD
CY2012Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	527000000	USD
CY2012Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	12106000000	USD
CY2011Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	13060000000	USD
CY2012Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	372000000	USD
CY2011Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	264000000	USD
CY2010Q4	us-gaap	Deferred Compensation Cash Based Arrangements Liability Current DeferredCompensationCashBasedArrangementsLiabilityCurrent	313000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2000000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17000000	USD
CY2011	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	349000000	USD
CY2012	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	449000000	USD
CY2010	us-gaap	Deferred Other Tax Expense Benefit DeferredOtherTaxExpenseBenefit	265000000	USD
CY2012	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	675000000	USD
CY2011	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	675000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	2133000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	2297000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1584000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1567000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	463000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	461000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-2047000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-2028000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5282000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5587000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6414000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6647000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	439000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	564000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	402000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	402000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	5703000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	6415000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	284000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	233000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10963000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10705000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6866000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	7154000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	31000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	32000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	162000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	206000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1755000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1730000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	68000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	92000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5093000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4851000000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	6300000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	8200000000	USD
CY2012	us-gaap	Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear	-220000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0411
CY2011Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0494
CY2012	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.09
CY2012	us-gaap	Defined Benefit Plan Description Of Direction And Pattern Of Change For Assumed Health Care Cost Trend Rate DefinedBenefitPlanDescriptionOfDirectionAndPatternOfChangeForAssumedHealthCareCostTrendRate	0.05
CY2012Q4	us-gaap	Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear	675000000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	8714000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	9150000000	USD
CY2012	us-gaap	Defined Benefit Plan Target Plan Asset Allocations DefinedBenefitPlanTargetPlanAssetAllocations	1.00
CY2012Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1565000000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1511000000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1523000000	USD
CY2012	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1400000000	USD
CY2010	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1400000000	USD
CY2011	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1400000000	USD
CY2012Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	62000000	USD
CY2011Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	30000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	306000000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-110000000	USD
CY2010	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	136000000	USD
CY2011	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-135000000	USD
CY2012	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	209000000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-15000000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	172000000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-123000000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-167000000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	52000000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	211000000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.02
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.20
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.38
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.01
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.50
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.38
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.20
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.015
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.110
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.026
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.457
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.408
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.423
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.040
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.076
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.053
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.023
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.033
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.090
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.000
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1367000000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1680000000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	38000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	0	USD
CY2012Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.49
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	360000000	USD
CY2012	us-gaap	Fair Value Measurements Significant Assumptions FairValueMeasurementsSignificantAssumptions	Volatilities used in these valuations ranged from 12% to 35% depending on the maturity dates, underlying commodities and strike prices of the option contracts.
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	600000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	670000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	68000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	9000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	67000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	67000000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	976000000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	976000000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-351000000	USD
CY2012Q4	us-gaap	Foreign Currency Cash Flow Hedge Derivative At Fair Value Net ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet	123000000	USD
CY2011Q4	us-gaap	Foreign Currency Cash Flow Hedge Derivative At Fair Value Net ForeignCurrencyCashFlowHedgeDerivativeAtFairValueNet	-89000000	USD
CY2011Q4	us-gaap	Frequent Flier Liability Current FrequentFlierLiabilityCurrent	1849000000	USD
CY2012Q4	us-gaap	Frequent Flier Liability Current FrequentFlierLiabilityCurrent	1806000000	USD
CY2012Q4	us-gaap	Frequent Flier Liability Noncurrent FrequentFlierLiabilityNoncurrent	2628000000	USD
CY2011Q4	us-gaap	Frequent Flier Liability Noncurrent FrequentFlierLiabilityNoncurrent	2700000000	USD
CY2012	us-gaap	Fuel Costs FuelCosts	10150000000	USD
CY2011	us-gaap	Fuel Costs FuelCosts	9730000000	USD
CY2010	us-gaap	Fuel Costs FuelCosts	7594000000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-118000000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-68000000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-391000000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	9794000000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	9794000000	USD
CY2012Q4	us-gaap	Grants Receivable GrantsReceivable	30000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1025000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	608000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	769000000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-85000000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-257000000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-432000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	899000000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	303000000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	516000000	USD
CY2012	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	216000000	USD
CY2011	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	174000000	USD
CY2010	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	232000000	USD
CY2011	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	82000000	USD
CY2012	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	-115000000	USD
CY2010	us-gaap	Increase Decrease In Frequent Flyer Liability IncreaseDecreaseInFrequentFlyerLiability	-345000000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	451000000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8000000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	36000000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	98000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	66000000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	373000000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8000000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-29000000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	134000000	USD
CY2011	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	76000000	USD
CY2012	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	116000000	USD
CY2010	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	141000000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	51000000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-16000000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	-153000000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5000000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	9000000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	6000000	shares
CY2012Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	4373000000	USD
CY2011Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	4375000000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4751000000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4679000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	812000000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-901000000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-969000000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-812000000	USD
CY2012	us-gaap	Interest Paid InterestPaid	834000000	USD
CY2010	us-gaap	Interest Paid InterestPaid	1036000000	USD
CY2011	us-gaap	Interest Paid InterestPaid	925000000	USD
CY2012Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-66000000	USD
CY2011Q4	us-gaap	Interest Rate Derivatives At Fair Value Net InterestRateDerivativesAtFairValueNet	-91000000	USD
CY2012Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	619000000	USD
CY2011Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	168000000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	7266000000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	6751000000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	6894000000	USD
CY2010	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1281000000	USD
CY2011	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1281000000	USD
CY2012	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	1336000000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1100000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1100000000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1100000000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	44550000000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	43499000000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	13270000000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	12701000000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	33411000000	USD
CY2011Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	32194000000	USD
CY2012Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	1825000000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	13060000000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	12106000000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	11082000000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	11847000000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1627000000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1944000000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1507000000	USD
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1827000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	4694000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1600000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2144000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1427000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1062000000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1706000000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	11233000000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	10599000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-755000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1571000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2521000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2026000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1962000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1498000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2832000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2834000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2476000000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	593000000	USD
CY2012Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	344000000	USD
CY2011Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	341000000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1002000000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1092000000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	67000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	1009000000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	854000000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	198000000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	124000000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	7000000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	549000000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	-168000000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	425000000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	-318000000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	1047000000	USD
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1609000000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1150000000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1206000000	USD
CY2010	us-gaap	Operating Expenses OperatingExpenses	29538000000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	33140000000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	34495000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	2175000000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	1975000000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	2217000000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	726000000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	860000000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	382000000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	481000000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-92000000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	352000000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1308000000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	134000000	USD
CY2012Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	16300000000	USD
CY2012	us-gaap	Operating Loss Carryforwards Expiration Dates OperatingLossCarryforwardsExpirationDates	2022
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1128000000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1549000000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	15547000000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	15565000000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	2022000000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent	3021000000	USD
CY2012	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	211000000	USD
CY2011	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	-167000000	USD
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Before Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPortionAttributableToParent	52000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	19000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	84000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-66000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-15000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1811000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3188000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-121000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-2171000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-3062000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	25000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	774000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1175000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	123000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	15000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	-172000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-54000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-41000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	-149000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	0	USD
CY2010	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	5000000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-71000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	196000000	USD
CY2012	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1592000000	USD
CY2010	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1646000000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1628000000	USD
CY2010	us-gaap	Other Cost Of Services OtherCostOfServices	673000000	USD
CY2012	us-gaap	Other Cost Of Services OtherCostOfServices	732000000	USD
CY2011	us-gaap	Other Cost Of Services OtherCostOfServices	721000000	USD
CY2011	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	264000000	USD
CY2010	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	313000000	USD
CY2012	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	372000000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1649000000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1419000000	USD
CY2011	us-gaap	Other Noncash Expense OtherNoncashExpense	68000000	USD
CY2012	us-gaap	Other Noncash Expense OtherNoncashExpense	56000000	USD
CY2010	us-gaap	Other Noncash Expense OtherNoncashExpense	391000000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-27000000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33000000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-44000000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-34000000	USD
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-90000000	USD
CY2010	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	105000000	USD
CY2012	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3873000000	USD
CY2010	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3647000000	USD
CY2011	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	3831000000	USD
CY2011Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	318000000	USD
CY2012Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	455000000	USD
CY2012	us-gaap	Passenger Revenue PassengerRevenue	31807000000	USD
CY2011	us-gaap	Passenger Revenue PassengerRevenue	30257000000	USD
CY2010	us-gaap	Passenger Revenue PassengerRevenue	27258000000	USD
CY2012	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	25237000000	USD
CY2010	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	21408000000	USD
CY2011	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	23843000000	USD
CY2012	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	6570000000	USD
CY2011	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	6414000000	USD
CY2010	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	5850000000	USD
CY2011	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	907000000	USD
CY2010	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	1055000000	USD
CY2012	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	1196000000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	18000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	55000000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	10000000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	63000000	USD
CY2010	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	19000000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	41000000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	66500000	USD
CY2010	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	815000000	USD
CY2012	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	958000000	USD
CY2011	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1078000000	USD
CY2010	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	287000000	USD
CY2012	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	772000000	USD
CY2011	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	347000000	USD
CY2010	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-301000000	USD
CY2011	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-308000000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-208000000	USD
CY2011Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	14200000000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	16005000000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000000	shares
CY2011Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1250000000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1344000000	USD
CY2012Q4	us-gaap	Price Risk Derivatives At Fair Value Net PriceRiskDerivativesAtFairValueNet	249000000	USD
CY2011Q4	us-gaap	Price Risk Derivatives At Fair Value Net PriceRiskDerivativesAtFairValueNet	70000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1965000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2395000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1130000000	USD
CY2011	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	318000000	USD
CY2010	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	0	USD
CY2012	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	137000000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	90000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	48000000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-49000000	USD
CY2012	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1019000000	USD
CY2011	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	844000000	USD
CY2010	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	149000000	USD
CY2011	us-gaap	Proceeds From Sale Of Intangible Assets ProceedsFromSaleOfIntangibleAssets	90000000	USD
CY2011	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1642000000	USD
CY2012	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1566000000	USD
CY2010	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	1549000000	USD
CY2012	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">We record impairment losses on flight equipment and other long-lived assets used in operations when events and circumstances indicate the assets may be impaired and the estimated future cash flows generated by those assets are less than their carrying amounts. Factors which could cause 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.</font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">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 aircraft'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.</font><font style="font-family:inherit;font-size:10pt;"> </font></div></div>
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	20223000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	20713000000	USD
CY2012Q4	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	-231000000	USD
CY2011Q4	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	46000000	USD
CY2011Q3	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	-216000000	USD
CY2012Q2	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	-754000000	USD
CY2011Q1	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	2000000	USD
CY2011Q2	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	-168000000	USD
CY2012Q1	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	163000000	USD
CY2012Q3	us-gaap	Quarterly Financial Information Quarterly Charges And Credits Amount Affecting Comparability QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability	279000000	USD
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1693000000	USD
CY2011Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1563000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2864000000	USD
CY2010	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	3722000000	USD
CY2011	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	4172000000	USD
CY2011Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	305000000	USD
CY2012Q4	us-gaap	Restricted Cash And Investments Current RestrictedCashAndInvestmentsCurrent	375000000	USD
CY2010	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	182000000	USD
CY2011	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	142000000	USD
CY2012	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	184000000	USD
CY2012	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	452000000	USD
CY2010	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	450000000	USD
CY2011	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	242000000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-7389000000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-8398000000	USD
CY2012	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Passenger Ticket Sales Earning Mileage Credits. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.</font><font style="font-family:inherit;font-size:10pt;"> Effective January 1, 2011, we began applying the provisions of new accounting rules to passenger tickets earning mileage credits. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">Under the new accounting rules, 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 and 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.</font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">We defer revenue for the mileage credits related to passenger ticket sales 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.</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">The adoption of the new accounting rules did not have a material impact on the timing of revenue recognition or its classification with regard to passenger tickets earning mileage credits.</font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Prior to the adoption of the new accounting rules, we used the residual method for revenue recognition. Under the residual method, we determined the fair value of the mileage credit component based on prices at which we sold mileage credits to other airlines and then considered the remainder of the amount collected to be the air transportation deliverable.</font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Sale of Mileage Credits.</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">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 two deliverables: (1) the mileage credits redeemable for future travel and (2) the marketing component. </font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The new accounting rules do not apply to contracts to sell mileage credits entered into prior to January 1, 2011 unless those contracts are materially modified. As of December 31, 2012, we had not materially modified any of our significant agreements. Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. For additional information about this relationship, see </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Note 7</font><font style="font-family:inherit;font-size:10pt;">. For contracts entered into prior to January 1, 2011 that have not been materially modified since January 1, 2011, we continue to use the residual method for revenue recognition and value only the mileage credits. Under the residual method, the portion of the revenue from the mileage component is deferred and recognized as passenger revenue when miles are redeemed and services are provided. The portion of the revenue received in excess of the fair value of mileage credits sold, the marketing component, is recognized in income as other revenue when the related marketing services are provided. The fair value of a mileage credit is determined based on prices at which we sell mileage credits to other airlines and is re-evaluated at least annually. </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If we enter into new contracts or materially modify existing contracts to sell mileage credits related to our SkyMiles Program, we will value the standalone selling price of the marketing component and allocate the revenue from the contract based on the relative selling price of the mileage credits and the marketing component. A material modification of an existing significant contract could impact our deferral rate or cause an adjustment to our deferred revenue balance, which could materially impact our future financial results. </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Breakage. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">For mileage credits which 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.</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> </font></div></div>
CY2012	us-gaap	Revenue Recognition Loyalty Programs RevenueRecognitionLoyaltyPrograms	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Frequent Flyer Program</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The SkyMiles Program offers incentives to travel on Delta. This program allows customers to earn mileage credits by flying on Delta, regional air carriers with which we have contract carrier agreements (“Contract Carriers”) </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">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 also sell mileage credits to non-airline businesses, customers and other airlines. </font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">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.</font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Passenger Ticket Sales Earning Mileage Credits. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.</font><font style="font-family:inherit;font-size:10pt;"> Effective January 1, 2011, we began applying the provisions of new accounting rules to passenger tickets earning mileage credits. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">Under the new accounting rules, 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 and 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.</font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">We defer revenue for the mileage credits related to passenger ticket sales 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.</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">The adoption of the new accounting rules did not have a material impact on the timing of revenue recognition or its classification with regard to passenger tickets earning mileage credits.</font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Prior to the adoption of the new accounting rules, we used the residual method for revenue recognition. Under the residual method, we determined the fair value of the mileage credit component based on prices at which we sold mileage credits to other airlines and then considered the remainder of the amount collected to be the air transportation deliverable.</font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Sale of Mileage Credits.</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">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 two deliverables: (1) the mileage credits redeemable for future travel and (2) the marketing component. </font><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The new accounting rules do not apply to contracts to sell mileage credits entered into prior to January 1, 2011 unless those contracts are materially modified. As of December 31, 2012, we had not materially modified any of our significant agreements. Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. For additional information about this relationship, see </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Note 7</font><font style="font-family:inherit;font-size:10pt;">. For contracts entered into prior to January 1, 2011 that have not been materially modified since January 1, 2011, we continue to use the residual method for revenue recognition and value only the mileage credits. Under the residual method, the portion of the revenue from the mileage component is deferred and recognized as passenger revenue when miles are redeemed and services are provided. The portion of the revenue received in excess of the fair value of mileage credits sold, the marketing component, is recognized in income as other revenue when the related marketing services are provided. The fair value of a mileage credit is determined based on prices at which we sell mileage credits to other airlines and is re-evaluated at least annually. </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If we enter into new contracts or materially modify existing contracts to sell mileage credits related to our SkyMiles Program, we will value the standalone selling price of the marketing component and allocate the revenue from the contract based on the relative selling price of the mileage credits and the marketing component. A material modification of an existing significant contract could impact our deferral rate or cause an adjustment to our deferred revenue balance, which could materially impact our future financial results. </font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Breakage. </font><font style="font-family:inherit;font-size:10pt;color:#000000;font-style:normal;text-decoration:none;">For mileage credits which 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.</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"></font></div></div>
CY2012	us-gaap	Revenue Recognition Sales Of Services RevenueRecognitionSalesOfServices	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Passenger Tickets</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2012	us-gaap	Revenues Revenues	36670000000	USD
CY2011	us-gaap	Revenues Revenues	35115000000	USD
CY2010	us-gaap	Revenues Revenues	31755000000	USD
CY2011Q3	us-gaap	Revenues Revenues	9816000000	USD
CY2012Q3	us-gaap	Revenues Revenues	9923000000	USD
CY2012Q2	us-gaap	Revenues Revenues	9732000000	USD
CY2011Q2	us-gaap	Revenues Revenues	9153000000	USD
CY2012Q1	us-gaap	Revenues Revenues	8413000000	USD
CY2012Q4	us-gaap	Revenues Revenues	8602000000	USD
CY2011Q4	us-gaap	Revenues Revenues	8399000000	USD
CY2011Q1	us-gaap	Revenues Revenues	7747000000	USD
CY2012	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	-13000000	USD
CY2012	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	-213000000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	16000000	USD
CY2011Q4	us-gaap	Secured Debt SecuredDebt	12490000000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	11839000000	USD
CY2012	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1590000000	USD
CY2011	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1682000000	USD
CY2010	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	1509000000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	72000000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	89000000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	54000000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	5000000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	157000000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	13000000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	11.93
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	14000000	shares
CY2011Q4	us-gaap	Short Term Investments ShortTermInvestments	958000000	USD
CY2012Q4	us-gaap	Short Term Investments ShortTermInvestments	958000000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	64000000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	40000000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	51000000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	10000000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1000000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	-2131000000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	-1396000000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	897000000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	245000000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	585000000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	594000000	USD
CY2011	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	14.19
CY2012	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	14.24
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	16464472	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	16253791	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	231000000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	234000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44000000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	66000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	89000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-4000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-9000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-5000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	65000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	31000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	5000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	72000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	12000000	USD
CY2011Q4	us-gaap	Unsecured Debt UnsecuredDebt	1307000000	USD
CY2012Q4	us-gaap	Unsecured Debt UnsecuredDebt	794000000	USD
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	11000000000	USD
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	843000000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	850000000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	844000000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	838000000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	834000000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	845000000	shares
CY2011	dal	Accumulated Other Comprehensive Income Loss Changes In Fair Value Before Tax AccumulatedOtherComprehensiveIncomeLossChangesInFairValueBeforeTax	-3057000000	USD
CY2012	dal	Accumulated Other Comprehensive Income Loss Changes In Fair Value Before Tax AccumulatedOtherComprehensiveIncomeLossChangesInFairValueBeforeTax	-1975000000	USD
CY2010	dal	Accumulated Other Comprehensive Income Loss Changes In Fair Value Before Tax AccumulatedOtherComprehensiveIncomeLossChangesInFairValueBeforeTax	-192000000	USD
CY2010	dal	Accumulated Other Comprehensive Income Loss Income Reclassification To Earnings Before Tax AccumulatedOtherComprehensiveIncomeLossIncomeReclassificationToEarningsBeforeTax	177000000	USD
CY2012	dal	Accumulated Other Comprehensive Income Loss Income Reclassification To Earnings Before Tax AccumulatedOtherComprehensiveIncomeLossIncomeReclassificationToEarningsBeforeTax	164000000	USD
CY2011	dal	Accumulated Other Comprehensive Income Loss Income Reclassification To Earnings Before Tax AccumulatedOtherComprehensiveIncomeLossIncomeReclassificationToEarningsBeforeTax	-131000000	USD
CY2010Q4	dal	Accumulated Other Comprehensive Income Valuation Allowance Net Of Tax AccumulatedOtherComprehensiveIncomeValuationAllowanceNetOfTax	-1213000000	USD
CY2011Q4	dal	Accumulated Other Comprehensive Income Valuation Allowance Net Of Tax AccumulatedOtherComprehensiveIncomeValuationAllowanceNetOfTax	-2454000000	USD
CY2012Q4	dal	Accumulated Other Comprehensive Income Valuation Allowance Net Of Tax AccumulatedOtherComprehensiveIncomeValuationAllowanceNetOfTax	-3144000000	USD
CY2009Q4	dal	Accumulated Other Comprehensive Income Valuation Allowance Net Of Tax AccumulatedOtherComprehensiveIncomeValuationAllowanceNetOfTax	-1207000000	USD
CY2012	dal	Actual Rate Of Return ActualRateOfReturn	0.09	Rate
CY2010	dal	Adjustment Skymiles Used Pursuant To Advance Purchase Agreement AdjustmentSkymilesUsedPursuantToAdvancePurchaseAgreement	0	USD
CY2012	dal	Adjustment Skymiles Used Pursuant To Advance Purchase Agreement AdjustmentSkymilesUsedPursuantToAdvancePurchaseAgreement	333000000	USD
CY2011	dal	Adjustment Skymiles Used Pursuant To Advance Purchase Agreement AdjustmentSkymilesUsedPursuantToAdvancePurchaseAgreement	0	USD
CY2012Q4	dal	Amount Withheld For Credit Card Processing Agreements AmountWithheldForCreditCardProcessingAgreements	0	USD
CY2011Q4	dal	Amount Withheld For Credit Card Processing Agreements AmountWithheldForCreditCardProcessingAgreements	0	USD
CY2012Q4	dal	Assumed Health Care Plan Post Age AssumedHealthCarePlanPostAge	65
CY2012Q4	dal	Assumed Health Care Plan Pre Age AssumedHealthCarePlanPreAge	65
CY2012	dal	Capacity Purchase Agreements Number Of Contract Carriers CapacityPurchaseAgreementsNumberOfContractCarriers	7
CY2012Q4	dal	Capital Leases Unamortized Discount Premium Net CapitalLeasesUnamortizedDiscountPremiumNet	2000000	USD
CY2012Q4	dal	Capital Stock Shares Authorized CapitalStockSharesAuthorized	2000000000	shares
CY2011Q4	dal	Cash Reserve For Credit Card Processing Agreements CashReserveForCreditCardProcessingAgreements	0	USD
CY2012Q4	dal	Cash Reserve For Credit Card Processing Agreements CashReserveForCreditCardProcessingAgreements	0	USD
CY2012	dal	Contract Carrier Agreements Number Of Contract Carriers ContractCarrierAgreementsNumberOfContractCarriers	8
CY2012Q4	dal	Contract Carrier Agreements Number Of Contract Carriers At Year End ContractCarrierAgreementsNumberOfContractCarriersAtYearEnd	7
CY2012	dal	Contract Carriers Expiration Dates ContractCarriersExpirationDates	2016 to 2022
CY2012	dal	Debt Discount On Customer Agreement DebtDiscountOnCustomerAgreement	0	USD
CY2010	dal	Debt Discount On Customer Agreement DebtDiscountOnCustomerAgreement	110000000	USD
CY2011	dal	Debt Discount On Customer Agreement DebtDiscountOnCustomerAgreement	0	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net After Year Five DebtInstrumentAmortizationDiscountPremiumNetAfterYearFive	90000000	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net Year Five DebtInstrumentAmortizationDiscountPremiumNetYearFive	54000000	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net Year Four DebtInstrumentAmortizationDiscountPremiumNetYearFour	65000000	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net Year One DebtInstrumentAmortizationDiscountPremiumNetYearOne	148000000	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net Year Three DebtInstrumentAmortizationDiscountPremiumNetYearThree	72000000	USD
CY2012Q4	dal	Debt Instrument Amortization Discount Premium Net Year Two DebtInstrumentAmortizationDiscountPremiumNetYearTwo	98000000	USD
CY2012	dal	Debt Instrument Periodic Payment Percentage Of Principal DebtInstrumentPeriodicPaymentPercentageOfPrincipal	0.01
CY2010	dal	Debt Relief Through Vendor Negotiations DebtReliefThroughVendorNegotiations	160000000	USD
CY2011	dal	Debt Relief Through Vendor Negotiations DebtReliefThroughVendorNegotiations	0	USD
CY2012	dal	Debt Relief Through Vendor Negotiations DebtReliefThroughVendorNegotiations	0	USD
CY2012	dal	Deferred Revenue Future Additions In Next Twelve Months DeferredRevenueFutureAdditionsInNextTwelveMonths	675000000	USD
CY2012	dal	Deferred Revenue Future Additions In Year Two DeferredRevenueFutureAdditionsInYearTwo	675000000	USD
CY2012Q4	dal	Deferred Tax Assets Reorganization Items DeferredTaxAssetsReorganizationItems	209000000	USD
CY2011Q4	dal	Deferred Tax Assets Reorganization Items DeferredTaxAssetsReorganizationItems	395000000	USD
CY2012Q4	dal	Estimated Cost Of Project EstimatedCostOfProject	1200000000	USD
CY2010Q3	dal	Fair Value Assets Measured On Nonrecurring Basis Estimated Fair Value Of Aircraft FairValueAssetsMeasuredOnNonrecurringBasisEstimatedFairValueOfAircraft	97000000	USD
CY2012Q4	dal	Future Tax Expense Benefit FutureTaxExpenseBenefit	321000000	USD
CY2012	dal	Inventory Exchanged Under Exchange Agreements InventoryExchangedUnderExchangeAgreements	-1121000000	USD
CY2009	dal	Non Cash Income Tax Expense Recorded In Other Comprehensive Income NonCashIncomeTaxExpenseRecordedInOtherComprehensiveIncome	321000000	USD
CY2011	dal	Number Of Slot Pairs Acquired NumberOfSlotPairsAcquired	132
CY2011	dal	Number Of Slot Pairs Sold NumberOfSlotPairsSold	42
CY2012	dal	Other Comprehensive Income Valuation Allowance Tax OtherComprehensiveIncomeValuationAllowanceTax	-690000000	USD
CY2011	dal	Other Comprehensive Income Valuation Allowance Tax OtherComprehensiveIncomeValuationAllowanceTax	-1241000000	USD
CY2010	dal	Other Comprehensive Income Valuation Allowance Tax OtherComprehensiveIncomeValuationAllowanceTax	-6000000	USD
CY2012	dal	Othercomprehensiveincomevaluationallowancechangesinfairvalue Othercomprehensiveincomevaluationallowancechangesinfairvalue	0	USD
CY2010	dal	Othercomprehensiveincomevaluationallowancechangesinfairvalue Othercomprehensiveincomevaluationallowancechangesinfairvalue	0	USD
CY2011	dal	Othercomprehensiveincomevaluationallowancechangesinfairvalue Othercomprehensiveincomevaluationallowancechangesinfairvalue	0	USD
CY2011	dal	Othercomprehensiveincomevaluationallowancereclassificationtoearnings Othercomprehensiveincomevaluationallowancereclassificationtoearnings	0	USD
CY2012	dal	Othercomprehensiveincomevaluationallowancereclassificationtoearnings Othercomprehensiveincomevaluationallowancereclassificationtoearnings	0	USD
CY2010	dal	Othercomprehensiveincomevaluationallowancereclassificationtoearnings Othercomprehensiveincomevaluationallowancereclassificationtoearnings	0	USD
CY2012	dal	Ownership Interest Percent Threshold To Consolidate OwnershipInterestPercentThresholdToConsolidate	0.50
CY2012Q4	dal	Percentage Of Employees Represented By Unions Under Collective Bargaining Agreements PercentageOfEmployeesRepresentedByUnionsUnderCollectiveBargainingAgreements	0.15
CY2012Q4	dal	Rate Of Interest On Equity To Be Paid On Exercising Put Right RateOfInterestOnEquityToBePaidOnExercisingPutRight	0.10
CY2012	dal	Redevelopmentprojectfundedbythirdparties Redevelopmentprojectfundedbythirdparties	-214000000	USD
CY2010	dal	Redevelopmentprojectfundedbythirdparties Redevelopmentprojectfundedbythirdparties	0	USD
CY2011	dal	Redevelopmentprojectfundedbythirdparties Redevelopmentprojectfundedbythirdparties	-126000000	USD
CY2011	dal	Required Amount Of Withholding Of Payments For Credit Card Agreements RequiredAmountOfWithholdingOfPaymentsForCreditCardAgreements	0	USD
CY2012	dal	Required Amount Of Withholding Of Payments For Credit Card Agreements RequiredAmountOfWithholdingOfPaymentsForCreditCardAgreements	0	USD
CY2012	dal	Required Cash Reserve For Credit Card Agreements RequiredCashReserveForCreditCardAgreements	0	USD
CY2011	dal	Required Cash Reserve For Credit Card Agreements RequiredCashReserveForCreditCardAgreements	0	USD
CY2011	dal	Restructuring Debt Extingushment Threasehold RestructuringDebtExtingushmentThreasehold	0.10
CY2012Q4	dal	Special Project Bonds Face Amount Issued By Others SpecialProjectBondsFaceAmountIssuedByOthers	800000000	USD
CY2012	dal	Term Of Agreement To Sublease Space TermOfAgreementToSubleaseSpace	33
CY2012	dal	Terms Of Aircraft Lease TermsOfAircraftLease	the lease would have (1) a rate equal to the debt payments of Chautauqua or Shuttle America for the debt financing of the aircraft calculated as if 90% of the aircraft was debt financed by Chautauqua or Shuttle America and (2) other specified terms and conditions
CY2012	dal	Unfunded Liability Defined Benefit Plan Interest Rate UnfundedLiabilityDefinedBenefitPlanInterestRate	0.0885	Rate
CY2012	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	10.91
CY2010	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	12.41
CY2011	dal	Weighted Average Price Per Treasury Share Withheld For Taxes WeightedAveragePricePerTreasuryShareWithheldForTaxes	9.63
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000027904
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	851590992	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	9300000000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	DELTA AIR LINES INC /DE/
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0001445305-13-000209-index-headers.html	Edgar Link	pending
0001445305-13-000209-index.html	Edgar Link	pending
0001445305-13-000209.txt	Edgar Link	pending
0001445305-13-000209-xbrl.zip	Edgar Link	pending
dal-20121231.xml	Edgar Link	completed
dal-20121231.xsd	Edgar Link	pending
dal-20121231_cal.xml	Edgar Link	unprocessable
dal-20121231_def.xml	Edgar Link	unprocessable
dal-20121231_lab.xml	Edgar Link	unprocessable
dal-20121231_pre.xml	Edgar Link	unprocessable
dal1231201210k.htm	Edgar Link	pending
dal12312012ex1014.htm	Edgar Link	pending
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dalstockperformancegraph.jpg	Edgar Link	pending
deltacr.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
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$DAL
DELTA AIR LINES, INC. Stock $dal

2012 Q4 Form 10-K Financial Statement

#000144530513000209 Filed on February 13, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DAL DELTA AIR LINES, INC. Stock $dal

2012 Q4 Form 10-K Financial Statement

#000144530513000209 Filed on February 13, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DAL
DELTA AIR LINES, INC. Stock $dal