$ALK
ALASKA AIR GROUP, INC. Stock $alk

$alk Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000076642114000010 Filed on February 13, 2014

Income Statement

Concept	2012 Q4	2011	2010 Q4
Revenue	$1.132B	$0.00	$958.5M
YoY Change	8.43%	-100.0%	13.28%
Cost Of Revenue	$594.7M	$2.110B	$416.8M
YoY Change	20.97%	23.43%	11.56%
Gross Profit	$537.6M	$2.208B	$541.7M
YoY Change	-2.73%	4.0%	14.65%
Gross Profit Margin	47.48%		56.52%
Selling, General & Admin	$331.0M	$1.238B	$309.0M
YoY Change	5.38%	2.57%	0.62%
% of Gross Profit	61.57%	56.06%	57.04%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$68.60M	$247.0M	$58.50M
YoY Change	9.41%	7.39%	2.81%
% of Gross Profit	12.76%	11.19%	10.8%
Operating Expenses	$463.3M	$3.869B	$422.4M
YoY Change	5.63%	15.11%	0.64%
Operating Profit	$74.30M	$449.0M	$119.3M
YoY Change	-34.88%	-4.67%	125.95%
Interest Expense	-$5.000M	$87.00M	-$18.70M
YoY Change	-35.06%	-19.44%	44.96%
% of Operating Profit	-6.73%	19.38%	-15.67%
Other Income/Expense, Net	$3.400M	-$55.00M	$2.900M
YoY Change	-159.65%	-15.38%	38.1%
Pretax Income	$72.70M	$394.0M	$103.5M
YoY Change	-27.81%	-2.96%	146.43%
Income Tax	$28.40M	$149.0M	$38.70M
% Of Pretax Income	39.06%	37.82%	37.39%
Net Earnings	$44.30M	$245.0M	$64.80M
YoY Change	-30.78%	-2.39%	168.88%
Net Earnings / Revenue	3.91%		6.76%
Basic Earnings Per Share		$3.41
Diluted Earnings Per Share	$313.7K	$3.33	$438.4K
COMMON SHARES
Basic Shares Outstanding	70.31M shares	71.76M shares
Diluted Shares Outstanding		73.42M shares

Balance Sheet

Concept	2012 Q4	2011	2010 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.252B	$1.141B	$1.208B
YoY Change	9.73%	-5.55%	1.34%
Cash & Equivalents	$122.0M	$102.0M	$90.00M
Short-Term Investments	$1.130B	$1.039B	$1.119B
Other Short-Term Assets	$297.0M	$275.0M	$14.00M
YoY Change	1446.88%	-4.84%	-95.09%
Inventory	$58.00M	$44.00M	$45.10M
Prepaid Expenses
Receivables	$130.0M	$136.0M	$120.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.737B	$1.596B	$1.662B
YoY Change	8.83%	-3.97%	1.69%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.609B	$3.373B	$3.148B
YoY Change	7.0%	7.15%	-0.62%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$39.00M	$70.00M	$70.00M
YoY Change	-44.29%	0.0%	37.25%
Other Assets	$120.0M	$128.0M	$136.3M
YoY Change	-6.25%	-5.88%	-4.82%
Total Long-Term Assets	$3.768B	$3.571B	$3.355B
YoY Change	5.52%	6.44%	-0.22%
TOTAL ASSETS
Total Short-Term Assets	$1.737B	$1.596B	$1.662B
Total Long-Term Assets	$3.768B	$3.571B	$3.355B
Total Assets	$5.505B	$5.167B	$5.017B
YoY Change	6.54%	2.99%	0.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$65.00M	$104.0M	$60.20M
YoY Change	-37.5%	73.33%	-4.9%
Accrued Expenses	$539.0M	$709.0M	$501.2M
YoY Change	5.07%	-1.66%	5.63%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$161.0M	$208.0M	$221.2M
YoY Change	-22.6%	-5.88%	41.79%
Total Short-Term Liabilities	$1.501B	$1.510B	$1.425B
YoY Change	-0.6%	5.96%	12.23%
LONG-TERM LIABILITIES
Long-Term Debt	$871.0M	$1.099B	$1.313B
YoY Change	-20.75%	-16.3%	-22.73%
Other Long-Term Liabilities	$334.0M	$1.021B	$123.0M
YoY Change	125.68%	14.21%	-17.0%
Total Long-Term Liabilities	$1.712B	$2.120B	$1.174B
YoY Change	23.7%	-3.94%	1.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.501B	$1.510B	$1.425B
Total Long-Term Liabilities	$1.712B	$2.120B	$1.174B
Total Liabilities	$3.213B	$3.993B	$2.598B
YoY Change	11.02%	2.1%	7.15%
SHAREHOLDERS EQUITY
Retained Earnings	$1.127B		$566.1M
YoY Change	38.96%		79.71%
Common Stock	$730.0M		$852.5M
YoY Change	-16.86%		6.19%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00		$46.00M
YoY Change	-100.0%		707.02%
Treasury Stock Shares	0.000 shares		1.086M shares
Shareholders Equity	$1.421B	$1.174B	$1.106B
YoY Change
Total Liabilities & Shareholders Equity	$5.505B	$5.167B	$5.017B
YoY Change	6.54%	2.99%	0.41%

Cashflow Statement

Concept	2012 Q4	2011	2010 Q4
OPERATING ACTIVITIES
Net Income	$44.30M	$245.0M	$64.80M
YoY Change	-30.78%	-2.39%	168.88%
Depreciation, Depletion And Amortization	$68.60M	$247.0M	$58.50M
YoY Change	9.41%	7.39%	2.81%
Cash From Operating Activities	$115.7M	$696.0M	$46.30M
YoY Change	32.68%	25.86%	-453.44%
INVESTING ACTIVITIES
Capital Expenditures	-$178.3M	$387.0M	-$31.40M
YoY Change	1326.4%	109.19%	-65.53%
Acquisitions
YoY Change
Other Investing Activities	$46.80M	-$21.00M	$35.20M
YoY Change	-2.09%	110.0%	30.37%
Cash From Investing Activities	-$131.5M	-$403.0M	$3.800M
YoY Change	-472.52%	36.61%	-105.93%
FINANCING ACTIVITIES
Cash Dividend Paid		$0.00
YoY Change
Common Stock Issuance & Retirement, Net		$61.00M
YoY Change		662.5%
Debt Paid & Issued, Net		$334.0M
YoY Change		4.05%
Cash From Financing Activities	110.5M	-$281.0M	-89.80M
YoY Change	-225.85%	-15.36%	-225.77%
NET CHANGE
Cash From Operating Activities	115.7M	$696.0M	46.30M
Cash From Investing Activities	-131.5M	-$403.0M	3.800M
Cash From Financing Activities	110.5M	-$281.0M	-89.80M
Net Change In Cash	94.70M	$12.00M	-39.70M
YoY Change	172.91%	-116.22%	584.48%
FREE CASH FLOW
Cash From Operating Activities	$115.7M	$696.0M	$46.30M
Capital Expenditures	-$178.3M	$387.0M	-$31.40M
Free Cash Flow	$294.0M	$309.0M	$77.70M
YoY Change	194.88%	-16.03%	-0.38%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	64000000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	65000000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	539000000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	612000000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2068000000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1863000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	7000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	10000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	20000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	173000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	423000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-183000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-436000000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	538000000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	660000000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	16000000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12000000	USD
CY2013	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;color:#4bacc6;font-style:italic;font-weight:bold;">Selling Expenses</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><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;">Selling expenses include credit card fees, global distribution systems charges, the estimated cost of Mileage Plan travel awards earned through air travel, advertising, promotional costs, commissions, and incentives. Advertising production costs are expensed the first time the advertising takes place. </font></div></div>
CY2011	us-gaap	Advertising Expense AdvertisingExpense	24000000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	26000000	USD
CY2013	us-gaap	Advertising Expense AdvertisingExpense	28000000	USD
CY2011	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	206000000	USD
CY2013	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	247000000	USD
CY2012	us-gaap	Aircraft Maintenance Materials And Repairs AircraftMaintenanceMaterialsAndRepairs	222000000	USD
CY2011	us-gaap	Aircraft Rental AircraftRental	116000000	USD
CY2012	us-gaap	Aircraft Rental AircraftRental	116000000	USD
CY2013	us-gaap	Aircraft Rental AircraftRental	119000000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15000000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	16000000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12000000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1000000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2012Q4	us-gaap	Assets Assets	5505000000	USD
CY2013Q4	us-gaap	Assets Assets	5838000000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1737000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1762000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1250000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1119000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	1250000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	1130000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	111000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	111000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	22000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	21000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	1117000000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	1118000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	4000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	8000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	9000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	1089000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	956000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	1048000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	2000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	6000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	12000000	USD
CY2013	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	6000000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	1000000	USD
CY2013Q4	us-gaap	Bank Overdrafts BankOverdrafts	11000000	USD
CY2012Q4	us-gaap	Bank Overdrafts BankOverdrafts	14000000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	12000000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	18000000	USD
CY2013	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	113000000	USD
CY2011	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	109000000	USD
CY2012	us-gaap	Cargo And Freight Revenue CargoAndFreightRevenue	111000000	USD
CY2013Q4	us-gaap	Cash Cash	9000000	USD
CY2012Q4	us-gaap	Cash Cash	28000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	122000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	80000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	102000000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	90000000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	12000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	20000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-42000000	USD
CY2013Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1330000000	USD
CY2012Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1252000000	USD
CY2013Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	71000000	USD
CY2012Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	94000000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00
CY2014Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	68766691	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	70376543	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	70376543	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	68745953	shares
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	70000000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	69000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	761000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	270000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	122000000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	145000000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	83000000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	162000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	94000000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11000000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4000000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	17000000	USD
CY2012Q4	us-gaap	Debt Current DebtCurrent	161000000	USD
CY2013Q4	us-gaap	Debt Current DebtCurrent	117000000	USD
CY2013Q4	us-gaap	Deferred Air Traffic Revenue DeferredAirTrafficRevenue	564000000	USD
CY2012Q4	us-gaap	Deferred Air Traffic Revenue DeferredAirTrafficRevenue	534000000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	135000000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	131000000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	94000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	146000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	145000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	104000000	USD
CY2013Q4	us-gaap	Deferred Revenue DeferredRevenue	335000000	USD
CY2012Q4	us-gaap	Deferred Revenue DeferredRevenue	443000000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	10000000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	15000000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	10000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	12000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	13000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	18000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	14000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	344000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	563000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	18000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	15000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-596000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-298000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	148000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	113000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-709000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-446000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	148000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	113000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	30000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	21000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	0	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	85000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	230000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	940000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	861000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	446000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	709000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	19000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	21000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	919000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	842000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0485
CY2012Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0395
CY2013Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2028
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CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	43000000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	44000000	USD
CY2012Q4	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	369000000	USD
CY2013Q4	us-gaap	Deposits On Flight Equipment DepositsOnFlightEquipment	446000000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	264000000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	247000000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	270000000	USD
CY2012Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	15000000	USD
CY2011Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	1000000	USD
CY2013Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	7000000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	26000000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	12000000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	4000000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	39000000	USD
CY2013	us-gaap	Dividends Cash DividendsCash	28000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.47
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.41
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.26
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.33
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.40
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.16
CY2013	us-gaap	Earnings Per Share Policy Diluted EarningsPerSharePolicyDiluted	Earnings Per Share (EPS)Diluted EPS is calculated by dividing net income by the average common shares outstanding plus additional common shares that would have been outstanding assuming the exercise of in-the-money stock options and restricted stock units, using the treasury-stock method. In 2013, 2012, and 2011, antidilutive stock options excluded from the calculation of EPS were not material.
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.377
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.379
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.385
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	211000000	USD
CY2013	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	584000000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	184000000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	9000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P8M12D
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4000000	USD
CY2012Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	23000000	USD
CY2013Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	23000000	USD
CY2013Q4	us-gaap	Flight Equipment Gross FlightEquipmentGross	4677000000	USD
CY2012Q4	us-gaap	Flight Equipment Gross FlightEquipmentGross	4248000000	USD
CY2013	us-gaap	Food And Beverage Cost Of Sales FoodAndBeverageCostOfSales	84000000	USD
CY2012	us-gaap	Food And Beverage Cost Of Sales FoodAndBeverageCostOfSales	79000000	USD
CY2011	us-gaap	Food And Beverage Cost Of Sales FoodAndBeverageCostOfSales	67000000	USD
CY2013	us-gaap	Fuel Costs FuelCosts	1467000000	USD
CY2012	us-gaap	Fuel Costs FuelCosts	1459000000	USD
CY2011	us-gaap	Fuel Costs FuelCosts	1298000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	394000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	514000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	816000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	394000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	514000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	149000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	198000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	308000000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	180000000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	138000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	286000000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	3000000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1000000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	4000000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-3000000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	0	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1000000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	14000000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	10000000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	21000000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	149000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	78000000	USD
CY2013	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	29000000	USD
CY2012	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	45000000	USD
CY2011	us-gaap	Increase Decrease In Air Traffic Liability1 IncreaseDecreaseInAirTrafficLiability1	67000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-94000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-146000000	USD
CY2011	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-145000000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	33000000	USD
CY2011	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	7000000	USD
CY2013	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	84000000	USD
CY2011	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-20000000	USD
CY2012	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	34000000	USD
CY2013	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	70000000	USD
CY2012	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	4000000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	70000000	USD
CY2013	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-14000000	USD
CY2011	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	36000000	USD
CY2012	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	71000000	USD
CY2013	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	62000000	USD
CY2012	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	18000000	USD
CY2011	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	12000000	USD
CY2013	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	21000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	64000000	USD
CY2011	us-gaap	Interest Expense InterestExpense	87000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	56000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	35000000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	74000000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	46000000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	60000000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	58000000	USD
CY2013Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	30000000	USD
CY2012Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	26000000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	19000000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	22000000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	18000000	USD
CY2013	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1086000000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1038000000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	991000000	USD
CY2012	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	243000000	USD
CY2011	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	238000000	USD
CY2013	us-gaap	Landing Fees And Other Rentals LandingFeesAndOtherRentals	262000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	290000000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	275000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	275000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5838000000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5505000000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1580000000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1501000000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1712000000	USD
CY2013Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	1475000000	USD
CY2013	us-gaap	Line Of Credit Facility Asset Restrictions LineOfCreditFacilityAssetRestrictions	500
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	871000000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	1032000000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	161000000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	117000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	267000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	117000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	147000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	116000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	111000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	113000000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	871000000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	754000000	USD
CY2013Q4	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.057
CY2012Q4	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.058
CY2013Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.017
CY2012Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.020
CY2013	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	<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;color:#4bacc6;font-style:italic;font-weight:bold;">Contingencies</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company is a party to routine litigation matters incidental to its business and with respect to which no material liability is expected. Management believes the ultimate disposition of these matters is not likely to materially affect the Company's financial position or results of operations. This forward-looking statement is based on management's current understanding of the relevant law and facts, and it is subject to various contingencies, including the potential costs and risks associated with litigation and the actions of arbitrators, judges and juries.</font></div></div>
CY2012Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1130000000	USD
CY2013Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1250000000	USD
CY2013Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	71000000	USD
CY2012Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	94000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-325000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-88000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-281000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-698000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-403000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-645000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	696000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	981000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	753000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	508000000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	245000000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	316000000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-18000000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-55000000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-22000000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	4125000000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	3869000000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	4318000000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	838000000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	449000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	532000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	179000000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	120000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-7000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-4000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-26000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	10000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax	-10000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-4000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	10000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-10000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	6000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-10000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	253000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-46000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-123000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	107000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	199000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-358000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	110000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	43000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-250000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	7000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	3000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-6000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-6000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-6000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	42000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	24000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	39000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-65000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-25000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	150000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-9000000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1000000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	9000000	USD
CY2013	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	278000000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	235000000	USD
CY2012	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	248000000	USD
CY2011	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	72000000	USD
CY2013	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	105000000	USD
CY2012	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	88000000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	334000000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	308000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5000000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9000000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2000000	USD
CY2011	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	9000000	USD
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	28000000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-47000000	USD
CY2011	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	501000000	USD
CY2012	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	516000000	USD
CY2013	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	-2000000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2013	us-gaap	Passenger Revenue PassengerRevenue	4267000000	USD
CY2011	us-gaap	Passenger Revenue PassengerRevenue	3708000000	USD
CY2012	us-gaap	Passenger Revenue PassengerRevenue	4030000000	USD
CY2012	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	3284000000	USD
CY2011	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	2995000000	USD
CY2013	us-gaap	Passenger Revenue Mainline PassengerRevenueMainline	3490000000	USD
CY2013	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	777000000	USD
CY2012	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	746000000	USD
CY2011	us-gaap	Passenger Revenue Regional PassengerRevenueRegional	713000000	USD
CY2011	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	109000000	USD
CY2013	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	0	USD
CY2012	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	56000000	USD
CY2012	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	455000000	USD
CY2011	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	318000000	USD
CY2013	us-gaap	Payments For Flight Equipment PaymentsForFlightEquipment	487000000	USD
CY2011	us-gaap	Payments For Proceeds From Hedge Investing Activities PaymentsForProceedsFromHedgeInvestingActivities	-16000000	USD
CY2012	us-gaap	Payments For Proceeds From Hedge Investing Activities PaymentsForProceedsFromHedgeInvestingActivities	19000000	USD
CY2013	us-gaap	Payments For Proceeds From Hedge Investing Activities PaymentsForProceedsFromHedgeInvestingActivities	-5000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-11000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	3000000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-21000000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	60000000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	80000000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	159000000	USD
CY2013	us-gaap	Payments Of Dividends PaymentsOfDividends	28000000	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	884000000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	1130000000	USD
CY2013	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	1218000000	USD
CY2012	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	24000000	USD
CY2011	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	35000000	USD
CY2013	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	41000000	USD
CY2013	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	38000000	USD
CY2011	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	34000000	USD
CY2012	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	39000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	566000000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	387000000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	518000000	USD
CY2011	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	141000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	87000000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	114000000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	489000000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	123000000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	123000000	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	95000000	USD
CY2013Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	-7000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	24000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	19000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	31000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	107000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	3000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-11000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3000000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1048000000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1089000000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	956000000	USD
CY2012	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	200000000	USD
CY2013	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	221000000	USD
CY2011	us-gaap	Professional And Contract Services Expense ProfessionalAndContractServicesExpense	185000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	5472000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	5961000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3893000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3609000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	838000000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	855000000	USD
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	130000000	USD
CY2013Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	152000000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	275000000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	334000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	161000000	USD
CY2013	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2012	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	0	USD
CY2011	us-gaap	Restructuring Settlement And Impairment Provisions RestructuringSettlementAndImpairmentProvisions	39000000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1607000000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1127000000	USD
CY2013	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;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#4bacc6;font-style:italic;font-weight:bold;">Deferred Revenue</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><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;">Deferred revenue results primarily from the sale of Mileage Plan miles to third-parties. This revenue is recognized when award transportation is provided or over the term of the applicable agreement.</font></div></div>
CY2011	us-gaap	Revenues Revenues	0	USD
CY2012	us-gaap	Revenues Revenues	0	USD
CY2013	us-gaap	Revenues Revenues	0	USD
CY2013	us-gaap	Sale Leaseback Transaction Gross Proceeds SaleLeasebackTransactionGrossProceeds	0	USD
CY2012	us-gaap	Sale Leaseback Transaction Gross Proceeds SaleLeasebackTransactionGrossProceeds	49000000	USD
CY2011	us-gaap	Sale Leaseback Transaction Gross Proceeds SaleLeasebackTransactionGrossProceeds	0	USD
CY2013	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	2000000	USD
CY2012	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	178000000	USD
CY2011	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	4000000	USD
CY2013	us-gaap	Sales Revenue Net SalesRevenueNet	5156000000	USD
CY2012	us-gaap	Sales Revenue Net SalesRevenueNet	4657000000	USD
CY2011	us-gaap	Sales Revenue Net SalesRevenueNet	4318000000	USD
CY2013Q4	alk	Deferred Tax Assets Mileage Plan DeferredTaxAssetsMileagePlan	185000000	USD
CY2014Q1	alk	Dividend Increase DividendIncrease	0.25
CY2012Q4	alk	Leased Aircraft Return Costs LeasedAircraftReturnCosts	2000000	USD
CY2012	us-gaap	Selling Expense SellingExpense	168000000	USD
CY2011	us-gaap	Selling Expense SellingExpense	175000000	USD
CY2013	us-gaap	Selling Expense SellingExpense	179000000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	10000000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	17000000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	32000000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	18000000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8939315	shares
CY2013Q4	alk	Leased Aircraft Return Costs LeasedAircraftReturnCosts	15000000	USD
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4000000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3000000	USD
CY2013	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	6000000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	18000000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10000000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	12000000	USD
CY2011	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	USD
CY2012	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	USD
CY2011	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2618600	shares
CY2012	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1685951	shares
CY2013	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2492093	shares
CY2013	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	159000000	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	79000000	USD
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	60000000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	1421000000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	2029000000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1174000000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	1106000000	USD
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20738	shares
CY2013	us-gaap	Treasury Stock Shares Retired TreasuryStockSharesRetired	2471355	shares
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2000000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-45000000	USD
CY2012	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-43000000	USD
CY2011	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-14000000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	73421000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	71784000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	70939000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	69955000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	70708000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	71755000	shares
CY2013Q4	alk	Airline Capacity Purchase Arrangements Carriers AirlineCapacityPurchaseArrangementsCarriers	3	carriers
CY2012Q4	alk	Deferred Revenue Mileage Plan Awards Issued But Not Yet Flown DeferredRevenueMileagePlanAwardsIssuedButNotYetFlown	39000000	USD
CY2013Q4	alk	Deferred Revenue Mileage Plan Awards Issued But Not Yet Flown DeferredRevenueMileagePlanAwardsIssuedButNotYetFlown	31000000	USD
CY2012Q4	alk	Deferred Tax Assets Mileage Plan DeferredTaxAssetsMileagePlan	265000000	USD
CY2013Q4	alk	Travel Credits For Future Travel TravelCreditsForFutureTravel	26000000	USD
CY2012	alk	Special Revenue Adjustment SpecialRevenueAdjustment	0	USD
CY2011	alk	Special Revenue Adjustment SpecialRevenueAdjustment	0	USD
CY2013Q4	alk	Total Cash And Marketable Securities Amortized Cost Basis TotalCashAndMarketableSecuritiesAmortizedCostBasis	1330000000	USD
CY2012Q4	alk	Total Cash And Marketable Securities Amortized Cost Basis TotalCashAndMarketableSecuritiesAmortizedCostBasis	1241000000	USD
CY2013Q4	alk	Line Of Credit Facility Number Of Credit Facilities LineOfCreditFacilityNumberOfCreditFacilities	2	credit_facility
CY2011	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	2571000000	USD
CY2012	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	2666000000	USD
CY2013	alk	Operating Expenses Excluding Fuel OperatingExpensesExcludingFuel	2851000000	USD
CY2011	alk	Other Netand Special Revenue OtherNetandSpecialRevenue	501000000	USD
CY2012	alk	Other Netand Special Revenue OtherNetandSpecialRevenue	516000000	USD
CY2013	alk	Other Netand Special Revenue OtherNetandSpecialRevenue	776000000	USD
CY2011	alk	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	10000000	USD
CY2012	alk	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	27000000	USD
CY2013	alk	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	16000000	USD
CY2013	alk	Quarterly Payout To Employee Under Employee Incentive Plan Maximum QuarterlyPayoutToEmployeeUnderEmployeeIncentivePlanMaximum	300
CY2011	alk	Special Revenue SpecialRevenue	0	USD
CY2012	alk	Special Revenue SpecialRevenue	0	USD
CY2013	alk	Special Revenue SpecialRevenue	192000000	USD
CY2013	alk	Special Revenue Adjustment SpecialRevenueAdjustment	192000000	USD
CY2012Q4	alk	Travel Credits For Future Travel TravelCreditsForFutureTravel	26000000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000766421
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	68687253	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	3600000000	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	ALASKA AIR GROUP, INC.
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0000766421-14-000010-index-headers.html	Edgar Link	pending
0000766421-14-000010-index.html	Edgar Link	pending
0000766421-14-000010.txt	Edgar Link	pending
0000766421-14-000010-xbrl.zip	Edgar Link	pending
alk-20131231.xml	Edgar Link	completed
alk-20131231.xsd	Edgar Link	pending
alk-20131231_cal.xml	Edgar Link	unprocessable
alk-20131231_def.xml	Edgar Link	unprocessable
alk-20131231_lab.xml	Edgar Link	unprocessable
alk-20131231_pre.xml	Edgar Link	unprocessable
alk10-k123113.htm	Edgar Link	pending
alk10-k123113ex21.htm	Edgar Link	pending
alk10-k123113ex231.htm	Edgar Link	pending
alk10-k123113ex311.htm	Edgar Link	pending
alk10-k123113ex312.htm	Edgar Link	pending
alk10-k123113ex321.htm	Edgar Link	pending
alk10-k123113ex322.htm	Edgar Link	pending
alk10-k123_chartx12419.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$ALK
ALASKA AIR GROUP, INC. Stock $alk

2012 Q4 Form 10-K Financial Statement

#000076642114000010 Filed on February 13, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALK ALASKA AIR GROUP, INC. Stock $alk

2012 Q4 Form 10-K Financial Statement

#000076642114000010 Filed on February 13, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALK
ALASKA AIR GROUP, INC. Stock $alk