10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

R ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2013

Or
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934

Commission File Number 001-5424

DELTA AIR LINES, INC.

(Exact name of registrant as specified in its charter)

Delaware	58-0218548
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
Post Office Box 20706
Atlanta, Georgia	30320-6001
(Address of principal executive offices)	(Zip Code)
Registrant's telephone number, including area code: (404) 715-2600

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes R No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes o No R

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes R No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes R No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. R

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	R	Accelerated filer	o	Non-accelerated filer	o	Smaller reporting company	o
				(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No R

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2013 was approximately $16.1 billion.

On January 31, 2014, there were outstanding 849,378,918 shares of the registrant's common stock.

This document is also available on our website at http://www.delta.com/about_delta/investor_relations.

Documents Incorporated By Reference

Part III of this Form 10-K incorporates by reference certain information from the registrant's definitive Proxy Statement for its Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission.

Table of Contents
	Page
Forward-Looking Statements	1
PART I
ITEM 1. BUSINESS	2
General	2
Fuel	4
Frequent Flyer Program	5
Other Businesses	5
Distribution and Expanded Product Offerings	5
Competition	6
Regulatory Matters	7
Employee Matters	10
Executive Officers of the Registrant	11
Additional Information	11
ITEM 1A. RISK FACTORS	12
Risk Factors Relating to Delta	12
Risk Factors Relating to the Airline Industry	17
ITEM 1B. UNRESOLVED STAFF COMMENTS	19
ITEM 2. PROPERTIES	20
Flight Equipment	20
Ground Facilities	21
ITEM 3. LEGAL PROCEEDINGS	22
ITEM 4. MINE SAFTEY DISCLOSURES	22
PART II
ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES	23
ITEM 6. SELECTED FINANCIAL DATA	25
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATION	27
Financial Highlights - 2013 Compared to 2012	27
Company Initiatives	27
Results of Operations - 2013 Compared to 2012	31
Results of Operations - 2012 Compared to 2011	34
Non-Operating Results	37
Income Taxes	37
Financial Condition and Liquidity	38
Contractual Obligations	40
Critical Accounting Policies and Estimates	41
Supplemental Information	45
Glossary of Defined Terms	46
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	47
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA	49
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE	95
ITEM 9A. CONTROLS AND PROCEDURES	95
ITEM 9B. OTHER INFORMATION	97

	Page
PART III
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE OF THE REGISTRANT	97
ITEM 11. EXECUTIVE COMPENSATION	97
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS	97
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE	97
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES	98
PART IV
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES	98
SIGNATURES	99
EXHIBIT INDEX	101

Unless otherwise indicated, the terms “Delta,” “we,” “us,” and “our” refer to Delta Air Lines, Inc. and its subsidiaries.

FORWARD-LOOKING STATEMENTS

Statements in this Form 10-K (or otherwise made by us or on our behalf) that are not historical facts, including statements about our estimates, expectations, beliefs, intentions, projections or strategies for the future, may be “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from historical experience or our present expectations. Known material risk factors applicable to Delta are described in “Risk Factors Relating to Delta” and “Risk Factors Relating to the Airline Industry” in “Item 1A. Risk Factors” of this Form 10-K, other than risks that could apply to any issuer or offering. All forward-looking statements speak only as of the date made, and we undertake no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that may arise after the date of this report.

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Part I

ITEM 1. BUSINESS

General

We provide scheduled air transportation for passengers and cargo throughout the United States and around the world. Our global route network gives us a presence in every major domestic and international market. Our route network is centered around a system of hub and international gateway airports that we operate in Amsterdam, Atlanta, Cincinnati, Detroit, Minneapolis-St. Paul, New York-LaGuardia, New York-JFK, Paris-Charles de Gaulle, Salt Lake City, Seattle and Tokyo-Narita. Each of these operations includes flights that gather and distribute traffic from markets in the geographic region surrounding the hub or gateway to domestic and international cities and to other hubs or gateways. Our network is supported by a fleet of aircraft that is varied in size and capabilities, giving us flexibility to adjust aircraft to the network.

Other key characteristics of our route network include:

• our international joint ventures, particularly our transatlantic joint venture with Air France-KLM and Alitalia and our new transatlantic joint venture with Virgin Atlantic;

• our alliances with other foreign airlines, including Aeroméxico and GOL and our membership in SkyTeam, a global airline alliance;

• our domestic marketing alliance with Alaska Airlines, which supplements our west coast service; and

• agreements with multiple domestic regional carriers, which operate as Delta Connection^®.

We are incorporated under the laws of the State of Delaware. Our principal executive offices are located at Hartsfield-Jackson Atlanta International Airport in Atlanta, Georgia. Our telephone number is (404) 715-2600 and our Internet address is www.delta.com. Information contained on our website is not part of, and is not incorporated by reference in, this Form 10-K.

International Alliances

Our international alliance relationships range from our transatlantic and transpacific joint venture agreements to bilateral and multilateral marketing alliances. These relationships are an important part of our business as they improve our access to international markets and enable us to market expanded and globally integrated air transportation services. In general, these arrangements include reciprocal codesharing and frequent flyer program participation and airport lounge access arrangements, and may also include joint sales and marketing coordination, co-location of airport facilities and other commercial cooperation arrangements. These alliances also often present opportunities in other areas, such as airport ground handling arrangements and aircraft maintenance insourcing.

Joint Venture Agreements. We currently operate three joint ventures with foreign carriers. These arrangements, for which we have received anti-trust immunity, provide for the sharing of revenues and costs, as well as joint marketing and sales, coordinated pricing and revenue management, network planning and scheduling and other coordinated activities with respect to the parties' operations on joint venture routes. The three joint ventures are:

• A transatlantic joint venture with Air France and KLM, both of which are subsidiaries of the same holding company, and Alitalia, which covers routes between North America and Europe.

• A transatlantic joint venture with Virgin Atlantic Airways with respect to operations on non-stop routes between the United Kingdom and North America. In 2013, we acquired a 49% equity stake in Virgin Atlantic Limited from Singapore Airlines.

• A transpacific joint venture with Virgin Australia Airlines with respect to operations on certain transpacific routes between North America and the South Pacific.

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Enhanced commercial agreements with Latin American Carriers. We have separate strategic equity investments in Grupo Aeroméxico, S.A.B. de C.V., the parent company of Aeroméxico, and GOL Linhas Aéreas Inteligentes, S.A, the parent company of GOL, and an exclusive commercial relationship with each company's affiliated air carrier. We invested in GOL and Aeroméxico because they operate in Latin America's two largest markets, Brazil and Mexico, respectively. The agreements provide for expansion of reciprocal codesharing and frequent flyer program participation, airport lounge access arrangements, improved passenger connections and potential joint sales cooperation. In addition to our commercial cooperation arrangements for passenger service with Aeroméxico, we and Aeroméxico have established a joint venture relating to an airframe maintenance, repair and overhaul operation located in Queretaro, Mexico.

SkyTeam. In addition to our marketing alliance agreements with individual foreign airlines, we are a member of the SkyTeam global airline alliance. The other members of SkyTeam are Aeroflot, Aerolineas Argentinas, Aeroméxico, Air Europa, Air France, Alitalia, China Airlines, China Eastern, China Southern, CSA Czech Airlines, Kenya Airways, KLM, Korean Air, Middle East Airlines, Saudi Arabian Airlines, Tarom, Vietnam Airlines and Xiamen Airlines. Garuda Indonesia also has announced its formal intent to join SkyTeam. Through alliance arrangements with other SkyTeam carriers, Delta is able to link its network with the route networks of the other member airlines, providing opportunities for increased connecting traffic while offering enhanced customer service through reciprocal codesharing and frequent flyer arrangements and airport lounge access programs and coordinated cargo operations.

Codeshare Agreements. We also have international codeshare arrangements with the following international carriers, some of which are carriers with which we also have more extensive relationships: Aeroflot, Aeroméxico, Air Europa, Air France, Alitalia, China Airlines, China Eastern, China Southern, CSA Czech Airlines, KLM, Korean Air, Olympic Air, VRG Linhas Aéreas (operating as GOL), Vietnam Airlines, Virgin Australia and WestJet (and affiliated carriers operating in conjunction with some of these airlines).

Domestic Alliances

We have a marketing alliance with Alaska Airlines, which includes reciprocal codesharing and frequent flyer and airport lounge access arrangements. Our alliance agreement with Alaska Airlines allows us to expand our west coast presence. We also have reciprocal codesharing and frequent flyer and airport lounge access arrangements with Hawaiian Airlines.

Regional Carriers

We have air service agreements with domestic regional air carriers that feed traffic to our route system by serving passengers primarily in small-and medium-sized cities. These arrangements enable us to better match capacity with demand in these markets. Approximately 19% of our passenger revenue in 2013 was related to flying by these regional air carriers.

Through our regional carrier program, Delta Connection, we have contractual arrangements with regional carriers to operate regional jet and, in certain cases, turbo-prop aircraft using our “DL” designator code. We have contractual arrangements with:

• ExpressJet Airlines, Inc. and SkyWest Airlines, Inc., both subsidiaries of SkyWest, Inc.;

• Chautauqua Airlines, Inc. and Shuttle America Corporation, both subsidiaries of Republic Airways Holdings, Inc.;

• Compass Airlines, Inc. (“Compass”) and GoJet Airlines, LLC, both subsidiaries of Trans States Holdings, Inc. (“Trans States”); and

• Endeavor Air, Inc., which we acquired in May 2013 as a part of its confirmed plan of reorganization.

Our contractual agreements with regional carriers primarily are capacity purchase arrangements, under which we control the scheduling, pricing, reservations, ticketing and seat inventories for the regional carriers' flights operating under our “DL” designator code, and we are entitled to all ticket, cargo, mail and in-flight and ancillary revenues associated with these flights. We pay those airlines an amount, as defined in the applicable agreement, which is based on a determination of their cost of operating those flights and other factors intended to approximate market rates for those services. These capacity purchase agreements are long-term agreements, usually with initial terms of at least 10 years, which grant us the option to extend the initial term. Certain of these agreements provide us the right to terminate the entire agreement, or in some cases remove some of the aircraft from the scope of the agreement, for convenience at certain future dates.

SkyWest Airlines operates some flights for us under a revenue proration agreement. This proration agreement establishes a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries.

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Fuel

Our results of operations are significantly impacted by changes in the price and availability of aircraft fuel. The following table shows our aircraft fuel consumption and costs.

Year	Gallons Consumed(1) (Millions)	Cost(1)(2) (Millions)		Average Price Per Gallon(1)(2)		Percentage of Total Operating Expense(1)(2)
2013	3,828	$	11,464	$	3.00	33	%
2012	3,769	$	12,251	$	3.25	36	%
2011	3,856	$	11,783	$	3.06	36	%

⁽¹⁾  Includes the operations of our regional carriers under capacity purchase agreements.

⁽²⁾  Includes fuel hedge gains (losses) under our fuel hedging program of $493 million, $(66) million and $420 million for 2013, 2012 and 2011, respectively.

General

Jet fuel costs remained at high levels in 2013, with fuel expense our single largest expense. We have historically purchased most of our aircraft fuel under contracts that establish the price based on various market indices and therefore do not provide material protection against price increases or assure the availability of our fuel supplies. We also purchase aircraft fuel on the spot market, from off-shore sources and under contracts that permit the refiners to set the price.

Monroe Energy

Global jet fuel demand continues to increase. While the advent of domestic shale oil production in the U.S. has reduced the threat of U.S. refinery closures beyond those that have already closed, further capacity reduction is expected in Europe, thus impacting supply in the Atlantic Basin and ultimately increasing refinery margins in the U.S. Our wholly-owned subsidiaries, Monroe Energy, LLC and MIPC, LLC (collectively, “Monroe”), operate the Trainer refinery and related assets located near Philadelphia, Pennsylvania as part of our strategy to mitigate the increasing cost of the refining margin we are paying. The facilities include pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and John F. Kennedy International Airport ("JFK").

Refinery Operations. The facility is capable of refining 185,000 barrels of crude oil per day. In addition to jet fuel, the refinery's production consists of gasoline, diesel and other refined products (“non-jet fuel products”). BP is the primary supplier of crude oil used by the refinery under a three year agreement. We source domestic crude oil supply when economical and are attempting to increase our overall domestic supply, including from the Bakken oil field in North Dakota.

Strategic Agreements. Under a multi-year agreement, we are exchanging a significant portion of the non-jet fuel products with Phillips 66 for jet fuel to be used in our airline operations. Substantially all of the remaining production of non-jet fuel products is being sold to BP under a buy/sell agreement effectively exchanging those non-jet fuel products for jet fuel. Our agreement with Phillips 66 requires us to deliver specified quantities of non-jet fuel products and they are required to deliver jet fuel to us. If we or Phillips 66 do not have the specified quantity and type of product available, the delivering party is required to procure any such shortage to fulfill its obligation under the agreement. Substantially all of the refinery's expected production of non-jet fuel products is included in these agreements.

Segments. Because the products and services of Monroe's refinery operations are discrete from our airline services, segment results are prepared for our airline segment and our refinery segment.Financial information on our segment reporting can be found in Note 2 of the Notes to the Consolidated Financial Statements.

Fuel Hedging Program

We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel. This fuel hedging program utilizes several different contract and commodity types.The economic effectiveness of this hedge portfolio is frequently tested against our financial targets. The hedge portfolio is rebalanced from time to time according to market conditions, which may result in locking in gains or losses on hedge contracts prior to their settlement dates.

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Fuel Supply Availability

We are currently able to obtain adequate supplies of aircraft fuel, including through our purchases from Monroe, and crude oil for Monroe's operations, but it is impossible to predict the future availability or price of aircraft fuel and crude oil. Weather-related events, natural disasters, political disruptions or wars involving oil-producing countries, changes in government policy concerning aircraft fuel production, transportation or marketing, changes in aircraft fuel production capacity, environmental concerns and other unpredictable events may result in fuel supply shortages and fuel price increases in the future.

Frequent Flyer Program

Our SkyMiles^® frequent flyer program is designed to retain and increase traveler loyalty by offering incentives to customers to increase travel on Delta. The SkyMiles program allows program members to earn mileage for travel awards by flying on Delta, Delta's regional carriers and other participating airlines. Mileage credit may also be earned by using certain services offered by program participants, such as credit card companies, hotels and car rental agencies. In addition, individuals and companies may purchase mileage credits. Miles do not expire, but are subject to all program rules. We reserve the right to terminate the program with six months advance notice, and to change the program's terms and conditions at any time without notice.

SkyMiles program mileage credits can be redeemed for air travel on Delta and participating airlines, for membership in our Delta Sky Clubs^® and for other program participant awards. Mileage credits are subject to certain transfer restrictions and travel awards are subject to capacity-controlled seating. In 2013, program members redeemed more than 271 billion miles in the SkyMiles program for 11 million award redemptions. During this period, 7.3% of revenue miles flown on Delta were from award travel.

Other Businesses

Cargo

Through our global network, our cargo operations are able to connect all of the world's major freight gateways. We generate cargo revenues in domestic and international markets through the use of cargo space on regularly scheduled passenger aircraft. We are a member of SkyTeam Cargo, a global airline cargo alliance, whose other members are Aeroflot, Aerolineas Argentinas, Aeromexico Cargo, Air France-KLM Cargo, Alitalia Cargo, China Airlines Cargo, China Cargo Airlines, China Southern Cargo, Czech Airlines Cargo and Korean Air Cargo. SkyTeam Cargo offers a global network spanning six continents.

Delta TechOps, Delta Global Services, MLT Vacations and Delta Private Jets

We have several other businesses arising from our airline operations, including aircraft maintenance, repair and overhaul (“MRO”), staffing services for third parties, vacation wholesale operations and our private jet operations. In 2013, the total revenue from these businesses was approximately $800 million.

• In addition to providing maintenance and engineering support for our fleet of over 900 aircraft, our MRO operation, known as Delta TechOps, serves aviation and airline customers from around the world.

• Our staffing services business, Delta Global Services, provides staffing services, professional security, training services and aviation solutions.

• Our vacation wholesale business, MLT Vacations, provides vacation packages.

• Our private jet operations, Delta Private Jets, provides aircraft charters, aircraft management and programs allowing members to purchase flight time by the hour.

Distribution and Expanded Product Offerings

Our tickets are sold through various distribution channels including telephone reservations, delta.com, and traditional "brick and mortar" and online travel agencies. An increasing number of our tickets are sold through delta.com, which reduces our distribution costs and gives us closer contact with our customers.

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We are transforming distribution from a commodity approach to a differentiated and merchandised approach. We expect that the merchandising initiatives we are implementing, primarily through delta.com, will generate additional revenue opportunities for us and will improve the experience of our customers. We provide our customers with opportunities to purchase what they value, such as first class upgrades, Economy Comfort^TM seating, WiFi access and SkyClub passes. We expect to benefit from increased traffic on delta.com through a combination of advertising revenue and sales of third party merchandise and services such as car rentals, hotels and trip insurance.

Competition

The airline industry is highly competitive, marked by significant competition with respect to routes, fares, schedules (both timing and frequency), services, products, customer service and frequent flyer programs. The industry is going through a period of transformation through consolidation, both domestically and internationally, and changes in international alliances. Consolidation in the airline industry and changes in international alliances have altered and will continue to alter the competitive landscape in the industry by resulting in the formation of airlines and alliances with increased financial resources, more extensive global networks and altered cost structures. In addition, other network carriers have also significantly reduced their costs over the last several years including through restructuring and bankruptcy reorganization. Our ability to compete effectively depends, in part, on our ability to maintain a competitive cost structure.

Domestic

Our domestic operations are subject to competition from both traditional network and discount carriers, some of which may have lower costs than we do and provide service at low fares to destinations served by us. In particular, we face significant competition at our domestic hub and gateway airports in Atlanta, Cincinnati, Detroit, Minneapolis-St. Paul, New York-LaGuardia, New York-JFK, Salt Lake City and Seattle either directly at those airports or at the hubs of other airlines that are located in close proximity to our hubs and gateways. We also face competition in smaller to medium-sized markets from regional jet operations of other carriers.

International

Our international operations are subject to competition from both domestic and foreign carriers. Through alliance and other marketing and codesharing agreements with foreign carriers, U.S. carriers have increased their ability to sell international transportation, such as services to and beyond traditional European and Asian gateway cities. Similarly, foreign carriers have obtained increased access to interior U.S. passenger traffic beyond traditional U.S. gateway cities through these relationships. In particular, alliances formed by domestic and foreign carriers, including SkyTeam, the Star Alliance (among United Airlines, Lufthansa German Airlines, Air Canada, All Nippon Airways and others) and the oneworld alliance (among American Airlines, British Airways, Iberia, Qantas and others) have significantly increased competition in international markets.

Increased competition has also emerged from well-funded carriers in the Gulf region, including Emirates, Etihad and Qatar. These carriers have large numbers of international widebody aircraft on order and are increasing service to the United States from their hubs in the Middle East. Several of these carriers, along with carriers from China, India and Latin America, are government supported or funded, which has allowed them to grow quickly, reinvest in their product and expand their global presence at the expense of U.S. airlines. In addition, the adoption of liberalized Open Skies Aviation Agreements with an increasing number of countries around the world, including in particular the Open Skies Treaties that the U.S. has with the Member States of the European Union, Japan and the Gulf states, could significantly increase competition among carriers serving those markets.

Several joint ventures among U.S. and foreign carriers, including our transatlantic and transpacific joint ventures, have received grants of antitrust immunity allowing the participating carriers to coordinate schedules, pricing, sales and inventory. Other joint ventures that have received anti-trust immunity include a transatlantic alliance among United, Air Canada and Lufthansa, a transpacific joint venture among United and All Nippon Airways, a transatlantic joint venture among American, British Airways and Iberia and a transpacific joint venture between American and Japan Air Lines.

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Regulatory Matters

The Department of Transportation (“DOT”) and the Federal Aviation Administration (the “FAA”) exercise regulatory authority over air transportation in the U.S. The DOT has authority to issue certificates of public convenience and necessity required for airlines to provide domestic air transportation. An air carrier that the DOT finds fit to operate is given authority to operate domestic and international air transportation (including the carriage of passengers and cargo). Except for constraints imposed by regulations regarding “Essential Air Services,” which are applicable to certain small communities, airlines may terminate service to a city without restriction.

The DOT has jurisdiction over certain economic and consumer protection matters, such as unfair or deceptive practices and methods of competition, advertising, denied boarding compensation, baggage liability and disabled passenger transportation. The DOT also has authority to review certain joint venture agreements between major carriers and engages in regulation of economic matters such as slot transactions. The FAA has primary responsibility for matters relating to the safety of air carrier flight operations, including airline operating certificates, control of navigable air space, flight personnel, aircraft certification and maintenance and other matters affecting air safety.

Authority to operate international routes and international codesharing arrangements is regulated by the DOT and by the governments of the foreign countries involved. International certificate authorities are also subject to the approval of the U.S. President for conformance with national defense and foreign policy objectives.

The Transportation Security Administration and the U.S. Customs and Border Protection, each a division of the Department of Homeland Security, are responsible for certain civil aviation security matters, including passenger and baggage screening at U.S. airports and international passenger prescreening prior to entry into or departure from the U.S.

Airlines are also subject to various other federal, state, local and foreign laws and regulations. For example, the U.S. Department of Justice has jurisdiction over airline competition matters. The U.S. Postal Service has authority over certain aspects of the transportation of mail. Labor relations in the airline industry, as discussed below, are generally governed by the Railway Labor Act. Environmental matters are regulated by various federal, state, local and foreign governmental entities. Privacy of passenger and employee data is regulated by domestic and foreign laws and regulations.

Fares and Rates

Airlines set ticket prices in all domestic and most international city pairs with minimal governmental regulation, and the industry is characterized by significant price competition. Certain international fares and rates are subject to the jurisdiction of the DOT and the governments of the foreign countries involved. Many of our tickets are sold by travel agents, and fares are subject to commissions, overrides and discounts paid to travel agents, brokers and wholesalers.

Route Authority

Our flight operations are authorized by certificates of public convenience and necessity and also by exemptions and limited-entry frequency awards issued by the DOT. The requisite approvals of other governments for international operations are controlled by bilateral agreements (and a multilateral agreement in the case of the U.S. and the European Union) with, or permits or approvals issued by, foreign countries. Because international air transportation is governed by bilateral or other agreements between the U.S. and the foreign country or countries involved, changes in U.S. or foreign government aviation policies could result in the alteration or termination of such agreements, diminish the value of our international route authorities or otherwise affect our international operations. Bilateral agreements between the U.S. and various foreign countries served by us are subject to renegotiation from time to time. The U.S. government has negotiated “open skies” agreements with many countries, which allow unrestricted access between the U.S. and the foreign markets. These agreements include separate agreements with the European Union and Japan.

Certain of our international route authorities are subject to periodic renewal requirements. We request extension of these authorities when and as appropriate. While the DOT usually renews temporary authorities on routes where the authorized carrier is providing a reasonable level of service, there is no assurance this practice will continue in general or with respect to a specific renewal. Dormant route authorities may not be renewed in some cases, especially where another U.S. carrier indicates a willingness to provide service.

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Airport Access

Operations at four major domestic airports and certain foreign airports served by us are regulated by governmental entities through allocations of “slots” or similar regulatory mechanisms which limit the rights of carriers to conduct operations at those airports. Each slot represents the authorization to land at or take off from the particular airport during a specified time period.

In the U.S., the FAA currently regulates the allocation of slots, slot exemptions, operating authorizations, or similar capacity allocation mechanisms at Reagan National in Washington, D.C. and LaGuardia, John F. Kennedy International Airport and Newark in the New York City area. Our operations at these airports generally require the allocation of slots or analogous regulatory authorizations. Similarly, our operations at Tokyo's Narita and Haneda Airports, London's Heathrow airport and other international airports are regulated by local slot coordinators pursuant to the International Air Transport Association's Worldwide Scheduling Guidelines and applicable local law. We currently have sufficient slots or analogous authorizations to operate our existing flights, and we have generally been able to obtain the rights to expand our operations and to change our schedules. There is no assurance, however, that we will be able to do so in the future because, among other reasons, such allocations are subject to changes in governmental policies.

Environmental Matters

Emissions. The U.S. Environmental Protection Agency (the “EPA”) is authorized to regulate aircraft emissions and has historically implemented emissions control standards adopted by the International Civil Aviation Organization (“ICAO”). Our aircraft comply with existing EPA standards as applicable by engine design date. The ICAO has adopted two additional aircraft engine emissions standards, the first of which is applicable to engines certified after December 31, 2007, and the second of which is applicable to engines certified after December 31, 2013. In June 2012, the EPA published a final rulemaking for new emission standards for oxides of nitrogen (NOx), adopting ICAO's additional standards. Included in the rule are two new tiers of more stringent emission standards for NOx.These standards, referred to as the Tier 6 standards, become effective for newly-manufactured aircraft engines beginning in 2013.

Concern about aviation environmental issues, including climate change and greenhouse gases, has led to taxes on our operations in the United Kingdom and in Germany, both of which have levied taxes directly on our customers. We may face additional regulation of aircraft emissions in the United States and abroad and become subject to further taxes, charges or additional requirements to obtain permits or purchase allowances or emission credits for greenhouse gas emissions in various jurisdictions. This could result in taxation or permitting requirements from multiple jurisdictions for the same operations. Ongoing bilateral discussions between the United States and other nations may lead to international treaties or other actions focusing on reducing greenhouse gas emissions from aviation. In addition, at the 38^th ICAO Assembly that concluded October 4, 2013 in Montreal, the Assembly adopted a climate change resolution committing ICAO to develop a global market-based measure to be finalized at the 2016 ICAO Assembly which would enable the airline industry to achieve carbon-neutral growth from 2020.

The European Union has required its member states to implement regulations including aviation in its Emissions Trading Scheme (“ETS”). Under these regulations, any airline with flights originating or landing in the European Union is subject to the ETS and, beginning in 2012, was required to purchase emissions allowances if the airline exceeds the number of free allowances allocated to it under the ETS. At the end of November 2012, the United States government enacted legislation exempting U.S. airlines from the ETS. In April 2013, the European Parliament deferred enforcement until April 2014 of the ETS with respect to flights operated to and from non-EU destinations; however, all intra-EU flights on any carrier (based in the EU or not) had to comply with the requirements of the ETS. The European Commission has proposed new legislation that would extend the ETS beyond intra-EU flights to include the portion of flights to and from the EU while in EU airspace for those countries whose international revenue ton kilometers exceeds a 1% de minimis threshold. This legislation faces opposition from the United States and some EU member countries.

Cap and trade restrictions have also been proposed in the United States. In addition, other legislative or regulatory action, including by the EPA, to regulate greenhouse gas emissions is possible. In particular, the EPA has found that greenhouse gases threaten the public health and welfare, which could result in regulation of greenhouse gas emissions from aircraft. In the event that legislation or regulation is enacted in the U.S. or in the event similar legislation or regulation is enacted in jurisdictions other than the European Union where we operate or where we may operate in the future, it could result in significant costs for us and the airline industry. In addition to direct costs, such regulation may have a greater effect on the airline industry through increases in fuel costs that could result from fuel suppliers passing on increased costs that they incur under such a system. We are monitoring and evaluating the potential impact of such legislative and regulatory developments.

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We seek to minimize the impact of greenhouse gas emissions from our operations through reductions in our fuel consumption and other efforts and have realized reductions in our greenhouse gas emission levels since 2005. We have reduced the fuel needs of our aircraft fleet through the retirement and replacement of certain elements of our fleet and with newer, more fuel efficient aircraft. In addition, we have implemented fuel saving procedures in our flight and ground support operations that further reduce carbon emissions. We are also supporting efforts to develop alternative fuels and efforts to modernize the air traffic control system in the U.S., as part of our efforts to reduce our emissions and minimize our impact on the environment.

Noise. The Airport Noise and Capacity Act of 1990 recognizes the rights of operators of airports with noise problems to implement local noise abatement programs so long as such programs do not interfere unreasonably with interstate or foreign commerce or the national air transportation system. This statute generally provides that local noise restrictions on Stage 3 aircraft first effective after October 1, 1990, require FAA approval. While we have had sufficient scheduling flexibility to accommodate local noise restrictions in the past, our operations could be adversely impacted if locally-imposed regulations become more restrictive or widespread.

Refinery Matters. Monroe's operation of the Trainer Refinery is subject to numerous environmental laws and extensive regulations, including those relating to the discharge of materials into the environment, waste management, pollution prevention measures and greenhouse gas emissions.

Under the Energy Independence and Security Act of 2007, the U.S. Environmental Protection Agency (“EPA”) has adopted Renewable Fuel Standards (“RFS”) that mandate the blending of renewable fuels into gasoline and on-road diesel ("Transportation Fuels"). Renewable Identification Numbers (“RINs”) are assigned to renewable fuels produced or imported into the U.S. that are blended into Transportation Fuels to demonstrate compliance with this obligation. A refinery may meet its obligation under RFS by blending the necessary volumes of renewable fuels with Transportation Fuels or by purchasing RINs in the open market or through a combination of blending and purchasing RINs. Because the refinery operated by Monroe does not blend renewable fuels, it must purchase its entire RINs requirement in the secondary market or obtain a waiver from the EPA.

Other Environmental Matters. We had been identified by the EPA as a potentially responsible party (a “PRP”) with respect to certain Superfund Sites, and entered into consent decrees or settlements regarding some of these sites. Our alleged disposal volume at each of these sites was small or was considered de minimis when compared to the total contributions of all PRPs at each site.

We are aware of soil and/or ground water contamination present on our current or former leaseholds at several domestic airports. To address this contamination, we have a program in place to investigate and, if appropriate, remediate these sites. Although the ultimate outcome of these matters cannot be predicted with certainty, we believe that the resolution of these matters will not have a material adverse effect on our consolidated financial statements.

We are also subject to various other federal, state and local laws governing environmental matters, including the management and disposal of chemicals, waste and hazardous materials, protection of surface and subsurface waters and regulation of air emissions and aircraft drinking water.

Civil Reserve Air Fleet Program

We participate in the Civil Reserve Air Fleet program (the “CRAF Program”), which permits the U.S. military to use the aircraft and crew resources of participating U.S. airlines during airlift emergencies, national emergencies or times of war. We have agreed to make available under the CRAF Program a portion of our international long-range aircraft during the contract period ending September 30, 2014. We have also committed aircraft to international short-range requirements. The CRAF Program has only been activated twice since it was created in 1951.

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Employee Matters

Railway Labor Act

Our relations with labor unions representing our airline employees in the U.S. are governed by the Railway Labor Act. Under the Railway Labor Act, a labor union seeking to represent an unrepresented craft or class of employees is required to file with the National Mediation Board (the “NMB”) an application alleging a representation dispute, along with authorization cards signed by at least 50% of the employees in that craft or class. The NMB then investigates the dispute and, if it finds the labor union has obtained a sufficient number of authorization cards, conducts an election to determine whether to certify the labor union as the collective bargaining representative of that craft or class. A labor union will be certified as the representative of the employees in a craft or class if more than 50% of votes cast are for that union. A certified labor union would commence negotiations toward a collective bargaining agreement with the employer.

Under the Railway Labor Act, a collective bargaining agreement between an airline and a labor union does not expire, but instead becomes amendable as of a stated date. Either party may request that the NMB appoint a federal mediator to participate in the negotiations for a new or amended agreement. If no agreement is reached in mediation, the NMB may determine, at any time, that an impasse exists and offer binding arbitration. If either party rejects binding arbitration, a 30-day “cooling off” period begins. At the end of this 30-day period, the parties may engage in “self help,” unless the U.S. President appoints a Presidential Emergency Board (“PEB”) to investigate and report on the dispute. The appointment of a PEB maintains the “status quo” for an additional 60 days. If the parties do not reach agreement during this period, the parties may then engage in “self help.” “Self help” includes, among other things, a strike by the union or the imposition of proposed changes to the collective bargaining agreement by the airline. Congress and the President have the authority to prevent “self help” by enacting legislation that, among other things, imposes a settlement on the parties.

Collective Bargaining

As of December 31, 2013, we had approximately 78,000 full-time equivalent employees, approximately 18% of whom were represented by unions. The following table shows our domestic airline employee groups that are represented by unions.

Employee Group	Approximate Number of Active Employees Represented	Union	Date on which Collective Bargaining Agreement Becomes Amendable
Delta Pilots	10,700	ALPA	December 31, 2015
Delta Flight Superintendents (Dispatchers)(1)	370	PAFCA	December 31, 2013
Endeavor Air Pilots	1,820	ALPA	January 1, 2020
Endeavor Air Flight Attendants	990	AFA	December 31, 2018
Endeavor Air Dispatchers	60	DISTWU	December 31, 2018

⁽¹⁾ We are in discussions with representatives of the Flight Superintendents.

In addition, 210 refinery employees of Monroe are represented by the United Steel Workers under an agreement that expires on February 26, 2015. This agreement is governed by the National Labor Relations Act, which generally allows either party to engage in self-help upon the expiration of the agreement.

Labor unions periodically engage in organizing efforts to represent various groups of our employees, including at our operating subsidiaries, that are not represented for collective bargaining purposes.

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Executive Officers of the Registrant

Richard H. Anderson, Age 58: Chief Executive Officer of Delta since September 1, 2007; Executive Vice President of UnitedHealth Group and President of its Commercial Services Group (December 2006-August 2007); Executive Vice President of UnitedHealth Group (November 2004-December 2006); Chief Executive Officer of Northwest Airlines Corporation (“Northwest”) (2001-November 2004).

Edward H. Bastian, Age 56: President of Delta since September 1, 2007; President of Delta and Chief Executive Officer Northwest Airlines, Inc. (October 2008-December 2009); President and Chief Financial Officer of Delta (September 2007-October 2008); Executive Vice President and Chief Financial Officer of Delta (July 2005-September 2007); Chief Financial Officer, Acuity Brands (June 2005-July 2005); Senior Vice President-Finance and Controller of Delta (2000-April 2005); Vice President and Controller of Delta (1998-2000).

Michael H. Campbell, Age 65: Executive Vice President-HR & Labor Relations of Delta since October 2008; Executive Vice President-HR, Labor & Communications of Delta (December 2007-October 2008); Executive Vice President-Human Resources and Labor Relations of Delta (July 2006-December 2007); Of Counsel, Ford & Harrison (January 2005-July 2006); Senior Vice President-Human Resources and Labor Relations, Continental Airlines, Inc. (1997-2004); Partner, Ford & Harrison (1978-1996).

Stephen E. Gorman, Age 58: Executive Vice President and Chief Operating Officer of Delta since October 2008; Executive Vice President-Operations of Delta (December 2007-October 2008); President and Chief Executive Officer of Greyhound Lines, Inc. (June 2003-October 2007); President, North America and Executive Vice President Operations Support at Krispy Kreme Doughnuts, Inc. (August 2001-June 2003); Executive Vice President, Technical Operations and Flight Operations of Northwest (February 2001-August 2001), Senior Vice President, Technical Operations of Northwest (January 1999-February 2001) and Vice President, Engine Maintenance Operations of Northwest (April 1996-January 1999).

Glen W. Hauenstein, Age 53: Executive Vice President - Chief Revenue Office of Delta since August 2013; Executive Vice President-Network Planning and Revenue Management of Delta (April 2006 - July 2013); Executive Vice President and Chief of Network and Revenue Management of Delta (August 2005-April 2006); Vice General Director-Chief Commercial Officer and Chief Operating Officer of Alitalia (2003-2005); Senior Vice President-Network of Continental Airlines (2003); Senior Vice President-Scheduling of Continental Airlines (2001- 2003); Vice President Scheduling of Continental Airlines (1998-2001).

Richard B. Hirst, Age 69: Executive Vice President - Chief Legal Officer of Delta since April 2013; Senior Vice President and General Counsel of Delta (October 2008 - April 2013); Senior Vice President-Corporate Affairs and General Counsel of Northwest (March 2008- October 2008); Executive Vice President and Chief Legal Officer of KB Home (March 2004-November 2006); Executive Vice President and General Counsel of Burger King Corporation (March 2001-June 2003); General Counsel of the Minnesota Twins (1999-2000); Senior Vice President-Corporate Affairs of Northwest (1994-1999); Senior Vice President-General Counsel of Northwest (1990-1994); Vice President-General Counsel and Secretary of Continental Airlines (1986-1990).

Paul A. Jacobson, Age 42. Executive Vice President - Chief Financial Officer of Delta since August 2013; Senior Vice President and Chief Financial Officer of Delta (March 2012 - July 2013); Senior Vice President and Treasurer for Delta (December 2007 - March 2012); Vice President and Treasurer (August 2005 - December 2007).

Additional Information

We make available free of charge on our website our Annual Report on Form 10-K, our Quarterly Reports on Form 10-Q, our Current Reports on Form 8-K and amendments to those reports as soon as reasonably practicable after these reports are filed with or furnished to the Securities and Exchange Commission. Information on our website is not incorporated into this Form 10-K or our other securities filings and is not a part of those filings.

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ITEM 1A. RISK FACTORS

Risk Factors Relating to Delta

Our business and results of operations are dependent on the price of aircraft fuel. High fuel costs or cost increases, including in the cost of crude oil, could have a materially adverse effect on our operating results.

Our operating results are significantly impacted by changes in the price of aircraft fuel. Fuel prices have increased substantially since the middle part of the last decade and have been extremely volatile during the last several years. In 2013, our average fuel price per gallon was $3.00, an 8% decrease from our average fuel price in 2012. In 2012, our average fuel price per gallon was $3.25, a 6% increase from our average fuel price in 2011. In 2011, our average fuel price per gallon was $3.06, a 31% increase from our average fuel price in 2010, which in turn was significantly higher than fuel prices just a few years earlier. Fuel costs represented 33%, 36% and 36% of our operating expense in 2013, 2012 and 2011, respectively. Volatility in fuel costs has had a significant negative effect on our results of operations and financial condition.

Our ability to pass along the higher fuel costs to our customers may be affected by the competitive nature of the airline industry. Until recently, we often have not been able to increase our fares to offset fully the effect of increases in fuel costs in the past and we may not be able to do so in the future. This is particularly the case when fuel prices increase rapidly. Because passengers often purchase tickets well in advance of their travel, a significant increase in fuel price may result in the fare charged not covering that increase.

We acquire a significant amount of jet fuel from our wholly-owned subsidiary, Monroe, and through strategic agreements that Monroe has with BP and Phillips 66. The cost of the fuel we purchase under these arrangements remains subject to volatility in the cost of crude oil and jet fuel. In addition, we continue to purchase a significant amount of aircraft fuel in addition to what we obtain from Monroe. Our aircraft fuel purchase contracts do not provide material protection against price increases as these contracts typically establish the price based on industry standard market price indices.

Our business and results of operations are also dependent on the availability of aircraft fuel. Significant disruptions in the supply of aircraft fuel, including from our wholly-owned subsidiary, would materially adversely affect our operations and operating results.

We are currently able to obtain adequate supplies of aircraft fuel, but it is impossible to predict the future availability of aircraft fuel. Weather-related events, natural disasters, political disruptions or wars involving oil-producing countries, changes in governmental policy concerning aircraft fuel production, transportation, taxes or marketing, environmental concerns and other unpredictable events may result in crude oil and fuel supply shortages in the future. Shortages in fuel supplies could have negative effects on our results of operations and financial condition.

Because we acquire a large amount of our jet fuel from Monroe, the disruption or interruption of production at the refinery could have an impact on our ability to acquire jet fuel needed for our operations. Disruptions or interruptions of production at the refinery could result from various sources including a major accident or mechanical failure, interruption of supply or delivery of crude oil, work stoppages relating to organized labor issues, or damage from severe weather or other natural or man-made disasters, including acts of terrorism. If the refinery were to experience an interruption in operations, disruptions in fuel supplies could have negative effects on our results of operations and financial condition. In addition, the financial benefits we expect to achieve from buying fuel from Monroe could be materially adversely affected (to the extent not recoverable through insurance) because of lost production and repair costs.

Under a strategic agreement that Monroe has with Phillips 66, Monroe is exchanging non-jet fuel products for jet fuel for use in our airline operations. Monroe is required to deliver specified quantities of non-jet fuel products to Phillips 66 and Phillips 66 is required to deliver specified quantities of jet fuel to us. If either party does not have the specified quantity or type of product available, that party is required to procure any such shortage to fulfill its obligation under the exchange agreements. If the refinery experiences a significant interruption in operations, Monroe may be required to expend substantial amounts to purchase the products it is required to deliver, which could have a material adverse effect on our consolidated financial results of operations.

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In addition, the strategic agreements utilize market prices for the products being exchanged. If Monroe's cost of producing the non-jet fuel products that it is required to deliver under these agreements exceeds the value it receives for those products, the financial benefits we expect to achieve through the ownership of the refinery and our consolidated results of operations could be materially adversely affected.

Our fuel hedging activities are intended to reduce the financial impact from changes in the price of jet fuel. Our obligation to post collateral in connection with our hedge contracts may have a substantial impact on our short-term liquidity.

We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel. This fuel hedging program utilizes several different contract and commodity types. The economic effectiveness of this hedge portfolio is frequently tested against our financial targets. The hedge portfolio is rebalanced from time to time according to market conditions, which may result in locking in gains or losses on hedge contracts prior to their settlement dates and may have a negative impact on our financial results.

Our fuel hedge contracts contain margin funding requirements. The margin funding requirements may cause us to post margin to counterparties or may cause counterparties to post margin to us as market prices in the underlying hedged items change. If fuel prices decrease significantly from the levels existing at the time we enter into fuel hedge contracts, we may be required to post a significant amount of margin, which could have a material adverse impact on the level of our unrestricted cash and cash equivalents and short-term investments.

Our funding obligation with respect to defined benefit pension plans wesponsor is significant and can vary materially because of changes ininvestment asset returns and values.

As of December 31, 2013, our defined benefit pension plans had an estimated benefit obligation of approximately $19.1 billion and were funded through assets with a value of approximately $8.9 billion. The benefit obligation is significantly affected by investment asset returns and changes in interest rates, neither of which is in our control. We estimate that our funding requirement for our defined benefit pension plans, which are governed by ERISA and have been frozen for future accruals, is approximately $675 million in 2014. Estimates of pension plan funding requirements can vary materially from actual funding requirements because the estimates are based on various assumptions concerning factors outside our control, including, among other things, the market performance of assets; statutory requirements; and demographic data for participants, including the number of participants and the rate of participant attrition. Results that vary significantly from our assumptions could have a material impact on our future funding obligations.

Agreements governing our debt, including credit agreements, include financial and other covenants that impose restrictions on our financial and business operations.

Our credit facilities have various financial and other covenants that require us to maintain, depending on the particular agreement, minimum fixed charge coverage ratios, minimum liquidity and/or minimum collateral coverage ratios. The value of the collateral that has been pledged in each facility may change over time, which may be reflected in appraisals of collateral required by our credit agreements and indentures. These changes could result from factors that are not under our control. A decline in the value of collateral could result in a situation where we may not be able to maintain the collateral coverage ratio. In addition, the credit facilities contain other negative covenants customary for such financings. If we fail to comply with these covenants and are unable to obtain a waiver or amendment, an event of default would result. These covenants are subject to important exceptions and qualifications.

The credit facilities also contain other events of default customary for such financings. If an event of default were to occur, the lenders could, among other things, declare outstanding amounts due and payable, and our cash may become restricted. We cannot provide assurance that we would have sufficient liquidity to repay or refinance the borrowings or notes under any of the credit facilities if such amounts were accelerated upon an event of default. In addition, an event of default or declaration of acceleration under any of the credit facilities could also result in an event of default under other of our financing agreements.

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Employee strikes and other labor-related disruptions may adversely affect ouroperations.

Our business is labor intensive, utilizing large numbers of pilots, flight attendants, aircraft maintenance technicians, ground support personnel and other personnel. As of December 31, 2013, approximately 18% of our workforce was unionized. Relations between air carriers and labor unions in the United States are governed by the Railway Labor Act, which provides that a collective bargaining agreement between an airline and a labor union does not expire, but instead becomes amendable as of a stated date. The Railway Labor Act generally prohibits strikes or other types of self-help actions both before and after a collective bargaining agreement becomes amendable, unless and until the collective bargaining processes required by the Railway Labor Act have been exhausted. Monroe's relations with unions representing its employees are governed by the National Labor Relations Act ("NLRA"), which generally allows self-help after a collective bargaining agreement expires.

If we or our subsidiaries are unable to reach agreement with any of our unionized work groups on future negotiations regarding the terms of their collective bargaining agreements or if additional segments of our workforce become unionized, we may be subject to work interruptions or stoppages, subject to the requirements of the Railway Labor Act or the NLRA, as the case may be. Strikes or labor disputes with our unionized employees may adversely affect our ability to conduct business. Likewise, if third party regional carriers with whom we have contract carrier agreements are unable to reach agreement with their unionized work groups in current or future negotiations regarding the terms of their collective bargaining agreements, those carriers may be subject to work interruptions or stoppages, subject to the requirements of the Railway Labor Act, which could have a negative impact on our operations.

Extended interruptions or disruptions in service at one of our hub or gateway airports could have a material adverse impact on our operations.

Our business is heavily dependent on our operations at the Atlanta airport and at our other hub or gateway airports in Amsterdam, Cincinnati, Detroit, Minneapolis-St. Paul, New York-LaGuardia, New York-JFK, Paris-Charles de Gaulle, Salt Lake City, Seattle and Tokyo-Narita. Each of these operations includes flights that gather and distribute traffic from markets in the geographic region surrounding the hub or gateway to other major cities and to other Delta hubs and gateways. A significant interruption or disruption in service at one of our hubs or gateways could have a serious impact on our business, financial condition and results of operations.

We are dependent on technology in our operations, and if our technology fails or we are unable to continue to invest in new technology, our business may be adversely affected.

We have become increasingly dependent on technology initiatives to reduce costs and to enhance customer service in order to compete in the current business environment. For example, we have made and continue to make significant investments in delta.com, check-in kiosks, mobile device applications and related initiatives. The performance and reliability of the technology are critical to our ability to attract and retain customers and our ability to compete effectively. Because of the rapid pace of new developments, these initiatives will continue to require significant capital investments in our technology infrastructure. If we are unable to make these investments, our business and operations could be negatively affected.

Disruptions or security breaches of our information technology infrastructure could interfere with our operations, compromise customer information and expose us to liability, possibly causing our business and reputation to suffer.

Any internal technology error or failure impacting systems hosted internally at our data centers or externally at third party locations, or large scale external interruption in technology infrastructure we depend on, such as power, telecommunications or the internet, may disrupt our technology network. Any individual, sustained or repeated failure of technology could impact our customer service and result in increased costs. Our technology systems and related data may also be vulnerable to a variety of sources of interruption due to events beyond our control, including natural disasters, terrorist attacks, telecommunications failures, computer viruses, hackers and other security issues. While we have in place, and continue to invest in, technology security initiatives and disaster recovery plans, these measures may not be adequate or implemented properly to prevent a business disruption and its adverse financial and reputational consequences to our business.

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In addition, as a part of our ordinary business operations, we collect and store sensitive data, including personal information of our customers and employees. The secure operation of the networks and systems on which this type of information is stored, processed and maintained is critical to our business operations and strategy. Any compromise of our technology systems resulting from attacks by hackers or breaches due to employee error or malfeasance could result in the loss, disclosure, misappropriation of or access to customers', employees' or business partners' information. Any such loss, disclosure, misappropriation or access could result in legal claims or proceedings, liability or regulatory penalties under laws protecting the privacy of personal information, disrupt operations and damage our reputation, any or all of which could adversely affect our business.

Our primary credit card processors have the ability to take significant holdbacks in certain circumstances. The initiation of such holdbacks likely would have a material adverse effect on our liquidity.

Most of the tickets we sell are paid for by customers who use credit cards. Our primary credit card processing agreements provide that no holdback of receivables or reserve is required except in certain circumstances, including if we do not maintain a required level of unrestricted cash. If circumstances were to occur that would allow American Express or our VISA/MasterCard processor to initiate a holdback, the negative impact on our liquidity likely would be material.

We are at risk of losses and adverse publicity stemming from any accident involving our aircraft.

An aircraft crash or other accident could expose us to significant liability. In the event that the insurance that we carry to cover damages arising from future accidents is not adequate, we may be forced to bear substantial losses from an accident. In addition, any accident involving an aircraft that we operate or an aircraft that is operated by an airline that is one of our regional carriers or codeshare partners could create a public perception that our aircraft are not safe or reliable, which could harm our reputation, result in air travelers being reluctant to fly on our aircraft and harm our business.

Our business is subject to the effects of weather and natural disasters and seasonality, which can cause our results to fluctuate.

Our results of operations will reflect fluctuations from weather, natural disasters and seasonality. Severe weather conditions and natural disasters can significantly disrupt service and create air traffic control problems. These events decrease revenue and can also increase costs. In addition, increases in frequency, severity or duration of thunderstorms, hurricanes, typhoons or other severe weather events, including from changes in the global climate, could result in increases in delays and cancellations, turbulence-related injuries, and fuel consumption to avoid such weather, any of which would increase the potential for greater loss of revenue and higher costs. In addition, demand for air travel is typically higher in the June and September quarters, particularly in international markets, because there is more vacation travel during these periods than during the remainder of the year. The seasonal shifting of demand causes our financial results to vary on a seasonal basis. Because of fluctuations in our results from weather, natural disasters and seasonality, operating results for a historical period are not necessarily indicative of operating results for a future period and operating results for an interim period are not necessarily indicative of operating results for an entire year.

An extended disruption in services provided by our third party regionalcarriers could have a material adverse effect on our results of operations.

We utilize the services of third party providers in a number of areas in support of our operations that are integral to our business, including third party carriers in the Delta Connection program. While we have agreements with these providers that define expected service performance, we do not have direct control over the operations of these carriers. To the extent that a significant disruption in our regional operations occurs because any of these providers are unable to perform their obligations over an extended period of time, our revenue may be reduced or our expenses may be increased resulting in a material adverse effect on our results of operations.

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The failure or inability of insurance to cover a significant liability related to hazards associated with the operation of a refinery by Monroe would have a material adverse effect on our consolidated financial results.

Monroe's refining operations are subject to various hazards unique to refinery operations, including explosions, fires, toxic emissions and natural catastrophes. Monroe's insurance coverage does not cover all potential losses, costs or liabilities and Monroe could suffer losses for uninsurable or uninsured risks or in amounts greater than its insurance coverage. In addition, Monroe's ability to obtain and maintain adequate insurance may be affected by conditions in the insurance market over which it has no control. If Monroe were to incur a significant liability for which it is not fully insured or for which insurance companies do not or are unable to provide coverage, this could have a material adverse effect on our consolidated financial results of operations.

The operation of a refinery by Monroe is subject to significant environmental regulation. Failure to comply with environmental regulations or the enactment of additional regulation could have a negative impact on our consolidated financial results.

Monroe's operations are subject to numerous environmental laws and extensive regulations, including those relating to the discharge of materials into the environment, waste management, pollution prevention measures and greenhouse gas emissions. If Monroe violates or fails to comply with these laws and regulations, Monroe could be fined or otherwise sanctioned, which if significant could have a material adverse effect on our financial results. In addition, the enactment of new environmental laws and regulations, including any laws or regulations relating to greenhouse gas emissions, could significantly increase the level of expenditures required for environmental matters for Monroe.

Under the Energy Independence and Security Act of 2007, the U.S. Environmental Protection Agency (“EPA”) has adopted Renewable Fuel Standards (“RFS”) that mandate the blending of renewable fuels into gasoline and on-road diesel ("Transportation Fuels"). Renewable Identification Numbers (“RINs”) are assigned to renewable fuels produced or imported into the U.S. that are blended into Transportation Fuels to demonstrate compliance with this obligation. A refinery may meet its obligation under RFS by blending the necessary volumes of renewable fuels with Transportation Fuels or by purchasing RINs in the open market or through a combination of blending and purchasing RINs.

Because the refinery operated by Monroe does not blend renewable fuels, it must purchase its entire RINs requirement in the secondary market or obtain a waiver from the EPA. Monroe is exposed to the market price of RINs. Market prices for RINs have recently become volatile and increased significantly during 2013 before returning to more moderate levels. We cannot predict the future prices of RINs. Purchasing RINs at elevated prices could have a material impact on our results of operations and cash flows.

Existing laws or regulations could change and the minimum volumes of renewable fuels that must be blended with refined petroleum products may increase. Increases in the volume of renewable fuels that must be blended into Monroe's products could limit the refinery's production if sufficient numbers of RINs are not available for purchase or relief from this requirement is not obtained, which could have an adverse effect on our consolidated financial results.

If we experience losses of senior management personnel and other key employees, our operating results could be adversely affected.

We are dependent on the experience and industry knowledge of our officers and other key employees to execute our business plans. If we experience a substantial turnover in our leadership and other key employees, and these persons are not replaced by individuals with equal or greater skills, our performance could be materially adversely impacted. Furthermore, we may be unable to attract and retain additional qualified executives as needed in the future.

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Risk Factors Relating to the Airline Industry

The airline industry is highly competitive and, if we cannot successfully compete in the marketplace, our business, financial condition and operating results will be materially adversely affected.

The airline industry is highly competitive, marked by significant competition with respect to routes, fares, schedules (both timing and frequency), services, products, customer service and frequent flyer programs. Our domestic operations are subject to competition from both traditional network and discount carriers, some of which may have lower costs than we do and provide service at low fares to destinations served by us. In particular, we face significant competition at our domestic hub and gateway airports in Atlanta, Cincinnati, Detroit, Minneapolis-St. Paul, New York-LaGuardia, New York-JFK, Salt Lake City and Seattle either directly at those airports or at the hubs of other airlines that are located in close proximity to our hubs and gateways. We also face competition in smaller to medium-sized markets from regional jet operations of other carriers.

Discount carriers, including Southwest, JetBlue, Spirit and Allegiant have placed significant competitive pressure on us in the United States and on other network carriers in the domestic market. In addition, network carriers have also significantly reduced their costs over the last several years through restructuring and bankruptcy reorganization. Our ability to compete effectively depends, in part, on our ability to maintain a competitive cost structure. If we cannot maintain our costs at a competitive level, then our business, financial condition and operating results could be materially adversely affected.

Our international operations are subject to competition from both domestic and foreign carriers. Through alliance and other marketing and codesharing agreements with foreign carriers, U.S. carriers have increased their ability to sell international transportation, such as services to and beyond traditional European and Asian gateway cities. Similarly, foreign carriers have obtained increased access to interior U.S. passenger traffic beyond traditional U.S. gateway cities through these relationships. In particular, alliances formed by domestic and foreign carriers, including SkyTeam, the Star Alliance (among United, Lufthansa German Airlines, Air Canada and others) and the oneworld alliance (among American Airlines, British Airways, Qantas and others) have significantly increased competition in international markets.

Increased competition has also emerged from well-funded carriers in the Gulf region, including Emirates, Etihad and Qatar. These carriers have large numbers of international widebody aircraft on order and are increasing service to the United States from their hubs in the Middle East. Several of these carriers, along with carriers from China, India and Latin America, are government supported or funded, which has allowed them to grow quickly, reinvest in their product and expand their global presence at the expense of U.S. airlines. In addition, the adoption of liberalized Open Skies Aviation Agreements with an increasing number of countries around the world, including in particular the Open Skies Treaties that the U.S. has with the Member States of the European Union and Japan, could significantly increase competition among carriers serving those markets.

Several joint ventures among U.S. and foreign carriers, including our transatlantic and transpacific joint ventures, have received grants of antitrust immunity allowing the participating carriers to coordinate schedules, pricing, sales and inventory. Other joint ventures that have received anti-trust immunity include a transatlantic alliance among United, Air Canada and Lufthansa, a transpacific joint venture among United and All Nippon Airways, a transatlantic joint venture among American Airlines, British Airways and Iberia and a transpacific joint venture between American Airlines and Japan Air Lines.

Consolidation in the domestic airline industry, changes in international alliances and the rise of well-funded government sponsored international carriers have altered and will continue to alter the competitive landscape in the industry by resulting in the formation of airlines and alliances with increased financial resources, more extensive global networks and altered cost structures.

The airline industry is subject to extensive government regulation, and new regulations may increase our operating costs.

Airlines are subject to extensive regulatory and legal compliance requirements that result in significant costs. For instance, the FAA from time to time issues directives and other regulations relating to the maintenance and operation of aircraft that necessitate significant expenditures. We expect to continue incurring expenses to comply with the FAA's regulations.

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Other laws, regulations, taxes and airport rates and charges have also been imposed from time to time that significantly increase the cost of airline operations or reduce revenues. The industry is heavily taxed. For example, the Aviation and Transportation Security Act mandates the federalization of certain airport security procedures and imposes security requirements on airports and airlines, most of which are funded by a per ticket tax on passengers and a tax on airlines. The federal government has adopted a significant increase in the per ticket tax effective in July 2014 and has recently proposed additional fees. The ticket tax increase and additional taxes and fees, if implemented, could negatively impact our results of operations.

Proposals to address congestion issues at certain airports or in certain airspace, particularly in the Northeast United States, have included concepts such as “congestion-based” landing fees, “slot auctions” or other alternatives that could impose a significant cost on the airlines operating in those airports or airspace and impact the ability of those airlines to respond to competitive actions by other airlines. In addition, the failure of the federal government to upgrade the U.S. air traffic control system has resulted in delays and disruptions of air traffic during peak travel periods in certain congested markets. The failure to improve the air traffic control system could lead to increased delays and inefficiencies in flight operations as demand for U.S. air travel increases, having a material adverse effect on our operations. Failure to update the air traffic control system in a timely manner, and the substantial funding requirements of an updated system that may be imposed on air carriers, may have an adverse impact on our financial condition and results of operations.

Events related to extreme weather delays caused the Department of Transportation to promulgate regulations imposing potentially severe financial penalties upon airlines that have flights experiencing extended tarmac delays. These regulations could have a negative impact on our operations in certain circumstances.

Future regulatory action concerning climate change, aircraft emissions and noise emissions could have a significant effect on the airline industry. For example, the European Commission adopted an emissions trading scheme applicable to all flights operating in the European Union, including flights to and from the United States. While enforcement of the scheme has been deferred until April 2014, if fully implemented, we expect that this system would impose additional costs on our operations in the European Union. Other laws or regulations such as this emissions trading scheme or other U.S. or foreign governmental actions may adversely affect our operations and financial results, either through direct costs in our operations or through increases in costs for jet fuel that could result from jet fuel suppliers passing on increased costs that they incur under such a system.

We and other U.S. carriers are subject to domestic and foreign laws regarding privacy of passenger and employee data that are not consistent in all countries in which we operate. In addition to the heightened level of concern regarding privacy of passenger data in the United States, certain European government agencies are initiating inquiries into airline privacy practices. Compliance with these regulatory regimes is expected to result in additional operating costs and could impact our operations and any future expansion. In addition, a security breach in which passenger or employee data is exposed could result in disruption to our operations, damage to our reputation and significant costs.

Terrorist attacks or international hostilities may adversely affect our business, financial condition and operating results.

The terrorist attacks of September 11, 2001 caused fundamental and permanent changes in the airline industry, including substantial revenue declines and cost increases, which resulted in industry-wide liquidity issues. Potential terrorist attacks or security breaches or fear of such events, even if not made directly on the airline industry, could negatively affect us and the airline industry. The potential negative effects include increased security (including as a result of our global operations), insurance and other costs and lost revenue from increased ticket refunds and decreased ticket sales. Our financial resources might not be sufficient to absorb the adverse effects of any further terrorist attacks or other international hostilities involving the United States.

The rapid spread of contagious illnesses can have a material adverse effect on our business and results of operations.

The rapid spread of a contagious illness can have a material adverse effect on the demand for worldwide air travel and therefore have a material adverse effect on our business and results of operations. Moreover, our operations could be negatively affected if employees are quarantined as the result of exposure to a contagious illness. Similarly, travel restrictions or operational problems resulting from the rapid spread of contagious illnesses in any part of the world in which we operate may have a materially adverse impact on our business and results of operations.

18

Reductions in coverage or lack of access to war risk insurance coverage could have a material adverse impact on our business and operating results.

As a result of the terrorist attacks on September 11, 2001, aviation insurers significantly (1) reduced the maximum amount of insurance coverage available to commercial air carriers for liability to persons (other than employees or passengers) for claims from acts of terrorism, war or similar events and (2) increased the premiums for such coverage. Since September 24, 2001, the U.S. government has been providing U.S. airlines with war-risk insurance to cover losses, including those resulting from terrorism, to passengers, third parties (ground damage) and the aircraft hull. The U.S. Secretary of Transportation has extended coverage through September 30, 2014, and we expect the coverage to be further extended. The withdrawal of government support of airline war-risk insurance would require us to obtain war-risk insurance coverage commercially. Such commercial insurance could have substantially less desirable coverage than currently provided by the U.S. government, may not be adequate to protect our risk of loss from future acts of terrorism or, may result in a material increase to our operating expense.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

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ITEM 2. PROPERTIES

Flight Equipment

Our operating aircraft fleet, commitments and options at December 31, 2013 are summarized in the following table:

	Current Fleet(1)					Commitments
Aircraft Type	Owned	Capital Lease	Operating Lease	Total	Average Age	Purchase(2)(3)	Lease	Options
B-717-200	—	4	9	13	12.1	—	75	—
B-737-700	10	—	—	10	4.9	—	—	—
B-737-800	73	—	—	73	12.9	—	—	—
B-737-900ER	12	—	—	12	0.1	88	—	30
B-747-400	4	9	3	16	20.1	—	—	—
B-757-200	100	20	18	138	19.7	—	—	—
B-757-300	16	—	—	16	10.8	—	—	—
B-767-300	10	2	4	16	22.9	—	—	—
B-767-300ER	51	5	2	58	17.8	—	—	2
B-767-400ER	21	—	—	21	12.8	—	—	4
B-777-200ER	8	—	—	8	13.9	—	—	—
B-777-200LR	10	—	—	10	4.8	—	—	6
B-787-8	—	—	—	—	—	18	—	—
A319-100	55	—	2	57	11.9	—	—	—
A320-200	50	—	19	69	18.8	—	—	—
A321-200	—	—	—	—	—	30	—	—
A330-200	11	—	—	11	8.8	—	—	—
A330-300	21	—	—	21	8.4	10	—	—
MD-88	71	46	—	117	23.5	—	—	—
MD-90	57	8	—	65	16.7	—	—	—
DC9-50	12	—	—	12	34.9	—	—	—
Total	592	94	57	743	17.1	146	75	42

⁽¹⁾  Excludes certain aircraft we own or lease which are operated by regional carriers on our behalf shown in the table below.

⁽²⁾  Our purchase commitment for 18 B-787-8 aircraft provides for certain aircraft substitution rights.

⁽³⁾  In addition, we have purchase commitments for 28 CRJ-900 aircraft and options for 24 CRJ-900 aircraft and 27 Embraer 175 aircraft that will be operated by our regional carriers.

The following table summarizes the aircraft fleet operated by our regional carriers on our behalf at December 31, 2013:

	Fleet Type
Carrier	CRJ-200	CRJ-700	CRJ-900	ERJ-145	Embraer 170	Embraer 175	Total
Endeavor Airlines, Inc.(1)	116	—	53	—	—	—	169
ExpressJet Airlines, Inc.	62	41	28	—	—	—	131
SkyWest Airlines, Inc.	46	19	32	—	—	—	97
Compass Airlines, Inc.	—	—	—	—	6	36	42
Chautauqua Airlines, Inc.	—	—	—	41	—	—	41
Shuttle America Corporation	—	—	—	—	14	16	30
GoJet Airlines, LLC	—	22	—	—	—	—	22
Total	224	82	113	41	20	52	532

⁽¹⁾ Endeavor Airlines, Inc. is one of our wholly-owned subsidiaries.

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Aircraft Purchase Commitments

Our purchase commitments for additional aircraft at December 31, 2013 are detailed in the following table:

	Delivery in Calendar Years Ending
Aircraft Purchase Commitments	2014	2015	2016	After 2016	Total
B-737-900ER	19	19	19	31	88
A321-200	—	—	15	15	30
B-787-8	—	—	—	18	18
CRJ-900	28	—	—	—	28
A330-300	—	4	4	2	10
Total	47	23	38	66	174

Aircraft Options

Our options to purchase additional aircraft at December 31, 2013 are detailed in the following table:

	Delivery in Calendar Years Ending
Aircraft Options	2014	2015	2016	After 2016	Total
B-737-900ER	—	5	6	19	30
B-767-300ER	—	—	1	1	2
B-767-400ER	—	1	2	1	4
B-777-200LR	—	2	4	—	6
CRJ-900	—	18	6	—	24
Embraer 175	—	9	18	—	27
Total	—	35	37	21	93

Ground Facilities

Airline Operations

We lease most of the land and buildings that we occupy. Our largest aircraft maintenance base, various computer, cargo, flight kitchen and training facilities and most of our principal offices are located at or near the Atlanta airport, on land leased from the City of Atlanta. We own our Atlanta reservations center, other real property in Atlanta, former headquarters and flight training buildings, which are located near the Minneapolis-St. Paul International Airport, and reservations centers in Minot, North Dakota and Chisholm, Minnesota. We also own property in Tokyo, including a 1.3-acre site in downtown Tokyo and a 33-acre land parcel, 512-room hotel and flight kitchen located near Tokyo's Narita International Airport.

We lease ticket counter and other terminal space, operating areas and air cargo facilities in most of the airports that we serve. At most airports, we have entered into use agreements which provide for the non-exclusive use of runways, taxiways and other improvements and facilities; landing fees under these agreements normally are based on the number of landings and weight of aircraft. These leases and use agreements generally run for periods of less than one year to 30 years or more, and often contain provisions for periodic adjustments of lease rates, landing fees and other charges applicable under that type of agreement. We also lease aircraft maintenance facilities and air cargo facilities at several domestic airports. Our aircraft maintenance facility leases generally require us to pay the cost of providing, operating and maintaining such facilities, including, in some cases, amounts necessary to pay debt service on special facility bonds issued to finance their construction. We also lease marketing, ticketing and reservations offices in certain locations for varying terms.

Refinery Operations

Our wholly-owned subsidiaries, Monroe and MIPC, own and operate the Trainer refinery and related assets in Pennsylvania. The facility includes pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and JFK.

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ITEM 3. LEGAL PROCEEDINGS

First Bag Fee Antitrust Litigation

In May, June and July, 2009, a number of purported class action antitrust lawsuits were filed in the U.S. District Courts for the Northern District of Georgia, the Middle District of Florida and the District of Nevada against Delta and AirTran Airways (“AirTran”). In these cases, the plaintiffs originally alleged that Delta and AirTran engaged in collusive behavior in violation of Section 1 of the Sherman Act in November 2008 based upon certain public statements made in October 2008 by AirTran's CEO at an analyst conference concerning fees for the first checked bag, Delta's imposition of a fee for the first checked bag on November 4, 2008 and AirTran's imposition of a similar fee on November 12, 2008. The plaintiffs sought to assert claims on behalf of an alleged class consisting of passengers who paid the first bag fee after December 5, 2008 and seek injunctive relief and unspecified treble damages. All of these cases have been consolidated for pre-trial proceedings in the Northern District of Georgia by the Multi-District Litigation (“MDL”) Panel.

In February 2010, the plaintiffs in the MDL proceeding filed a consolidated amended class action complaint which substantially expanded the scope of the original complaint. In the consolidated amended complaint, the plaintiffs added new allegations concerning alleged signaling by both Delta and AirTran based upon statements made to the investment community by both carriers relating to industry capacity levels during 2008-2009. The plaintiffs also added a new cause of action against Delta alleging attempted monopolization in violation of Section 2 of the Sherman Act, paralleling a claim previously asserted against AirTran but not Delta.

In August 2010, the District Court issued an order granting Delta's motion to dismiss the Section 2 claim, but denying its motion to dismiss the Section 1 claim. Plaintiffs have filed a motion to certify the Section 1 class, which remains pending. Delta believes the claims in these cases are without merit and is vigorously defending these lawsuits.

EU Regulation 261 Class Action Litigation

In February 2011, a putative class action was filed in the U.S. District Court for the Northern District of Illinois seeking to represent all US residents who were passengers on flights during the period from February 2009 to the present who are allegedly entitled to compensation under EU Regulation 261 because their flight was cancelled or delayed by more than 3 hours. Plaintiffs allege that Delta has incorporated a duty to pay this compensation into its contract of carriage, and assert a claim for breach of contract as the basis for their cause of action. The complaint seeks recovery of the EU Regulation 261 compensation of €600 for each US resident on a flight qualifying for such compensation. In October 2013, the District Court granted Delta’s motion to dismiss all claims with prejudice. The plaintiffs have filed an appeal to the U.S. Court of Appeals for the Seventh Circuit, which remains pending. Delta disputes the allegations in the Complaint and intends to vigorously defend the matter.

***

For a discussion of certain environmental matters, see “Business-Regulatory Matters-Environmental Matters” in Item 1.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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Part II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS ANDISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is listed on the New York Stock Exchange. The following table sets forth for the periods indicated the highest and lowest sales price for our common stock as reported on the NYSE and dividends declared during these periods.

	Common Stock						Cash Dividends Declared (per share)
	High			Low
Fiscal 2013
Fourth Quarter		$	29.44		$	23.63	$0.06
Third Quarter		$	24.10		$	18.30	$0.06
Second Quarter		$	19.43		$	13.94	--
First Quarter		$	17.25		$	11.97	--
Fiscal 2012
Fourth Quarter		$	12.05		$	9.11	--
Third Quarter		$	11.25		$	8.42	--
Second Quarter		$	12.25		$	9.78	--
First Quarter		$	11.58		$	7.83	--

Holders

As of January 31, 2014, there were approximately 3,390 holders of record of our common stock.

Dividends

In 2013, our Board of Directors initiated a quarterly dividend program and declared a $0.06 per share dividend for shareholders of record as of August 9, 2013 and November 6, 2013, which were paid in September and November 2013 respectively. The Board did not declare any other dividends in the last two fiscal years. Our ability to pay future dividends is subject to compliance with covenants in several of our credit facilities. In addition, any future determination to pay cash dividends will be at the discretion of the Board of Directors, subject to applicable limitations under Delaware law, and will be dependent upon our results of operations, financial condition, cash requirements, future prospects and other factors deemed relevant by the Board of Directors.

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Stock Performance Graph

The following graph compares the cumulative total returns during the period from January 1, 2009 to December 31, 2013 of our common stock to the Standard & Poor's 500 Stock Index and the Amex Airline Index. The comparison assumes $100 was invested on January 1, 2009 in each of our common stock and the indices and assumes that all dividends were reinvested.

Issuer Purchases of Equity Securities

The following table presents information with respect to purchases of common stock we made during the December 2013 quarter. The total number of shares purchased includes shares repurchased pursuant to our $500 million share repurchase program, which was publicly announced on May 8, 2013 (the "2013 Repurchase Program"). The 2013 Repurchase Program will terminate no later than June 2016.

In addition, the table includes shares withheld from employees to satisfy certain tax obligations due in connection with grants of stock under the Delta Air Lines, Inc. 2007 Performance Compensation Plan (the "2007 Plan"). The 2007 Plan provides for the withholding of shares to satisfy tax obligations. It does not specify a maximum number of shares that can be withheld for this purpose. The shares of common stock withheld to satisfy tax withholding obligations may be deemed to be “issuer purchases” of shares that are required to be disclosed pursuant to this Item.

Period	Total Number of Shares Purchased	Average Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value (in millions) of Shares That May Yet Be Purchased Under the Plan or Programs
October 2013	1,138,700	$25.54	1,138,700	$378
November 2013	4,627,552	$27.56	4,627,552	$252
December 2013	95,000	$29.01	95,000	$250
Total	5,861,252		5,861,252

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ITEM 6. SELECTED FINANCIAL DATA

The following tables are derived from our audited consolidated financial statements, and present selected financial and operating data for the years ended December 31, 2013, 2012, 2011, 2010 and 2009.

Consolidated Summary of Operations

	Year Ended December 31,
(in millions, except share data)	2013			2012			2011			2010			2009
Operating revenue	$	37,773		$	36,670		$	35,115		$	31,755		$	28,063
Operating expense	34,373			34,495			33,140			29,538			28,387
Operating income (loss)	3,400			2,175			1,975			2,217			(324		)
Other expense, net	(873		)	(1,150		)	(1,206		)	(1,609		)	(1,257		)
Income (loss) before income taxes	2,527			1,025			769			608			(1,581		)
Income tax benefit (provision)	8,013			(16		)	85			(15		)	344
Net income (loss)	$	10,540		$	1,009		$	854		$	593		$	(1,237	)
Basic earnings (loss) per share	$	12.41		$	1.20		$	1.02		$	0.71		$	(1.50	)
Diluted earnings (loss) per share	$	12.29		$	1.19		$	1.01		$	0.70		$	(1.50	)

The following are included in the results above:

	Year Ended December 31,
(in millions)	2013			2012			2011		2010		2009
Release of tax valuation allowance and intraperiod income tax allocation	$	(7,989	)	$	—		$	—	$	—	$	(321	)
MTM adjustments	(276		)	(27		)	26		—		—
Severance, impairment charges and other	424			452			242		227		132
Loss on extinguishment of debt	—			118			68		391		83
Merger-related items	—			—			—		233		275
Total	$	(7,841	)	$	543		$	336	$	851	$	169

Other Financial and Statistical Data (Unaudited)

	Year Ended December 31,
Consolidated(1)	2013			2012			2011			2010			2009
Revenue passenger miles (millions)	194,988			192,974			192,767			193,169			188,943
Available seat miles (millions)	232,740			230,415			234,656			232,684			230,331
Passenger mile yield		16.89	¢		16.46	¢		15.70	¢		14.11	¢		12.60	¢
Passenger revenue per available seat mile		14.15	¢		13.78	¢		12.89	¢		11.71	¢		10.34	¢
Operating cost per available seat mile		14.77	¢		14.97	¢		14.12	¢		12.69	¢		12.32	¢
Passenger load factor	83.8		%	83.8		%	82.1		%	83.0		%	82.0		%
Fuel gallons consumed (millions)	3,828			3,769			3,856			3,823			3,853
Average price per fuel gallon(2)	$	3.00		$	3.25		$	3.06		$	2.33		$	2.15
Average price per fuel gallon, adjusted(3)	$	3.07		$	3.26		$	3.05		$	2.33		$	2.15
Full-time equivalent employees, end of period	77,755			73,561			78,392			79,684			81,106

⁽¹⁾ Includes the operations of our regional carriers under capacity purchase agreements. Full-time equivalent employees exclude employees of regional carriers that we do not own.

⁽²⁾  Includes the impact of fuel hedge activity.

⁽³⁾  Non-GAAP financial measure defined and reconciled in "Operating Expense" sections of Results of Operations - 2013 compared to 2012 and 2012 compared to 2011.

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	December 31,
(in millions)	2013		2012			2011			2010		2009
Total assets	$	52,252	$	44,550		$	43,499		$	43,188	$	43,789
Long-term debt and capital leases (including current maturities)	$	11,342	$	12,709		$	13,791		$	15,252	$	17,198
Stockholders' equity (deficit)	$	11,643	$	(2,131	)	$	(1,396	)	$	897	$	245
Common stock outstanding	851		851			845			835		784

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ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTSOF OPERATIONS

Financial Highlights - 2013 Compared to 2012

Our net income for 2013 was $10.5 billion, which reflects $8.0 billion of income tax benefits primarily due to the release of the tax valuation allowance. Income before income taxes was $2.5 billion, representing a $1.5 billion improvement over prior year. Our pre-tax operating margin rose by 4 percentage points to 7% on both higher revenues and lower costs.

2013 was a successful year for Delta based on several measures. Our pre-tax profits were 147% higher than the prior year. Our operating performance led the industry, driving customer satisfaction and doubling our domestic net promoter scores, a metric measuring customer satisfaction. Our completion factor was 99.7% with over 70 days where none of our flights were canceled. We ranked number two in the industry for bag performance as measured by the U.S. Department of Transportation. During the year, we returned over $350 million to our shareholders through dividends and a share purchase program. We also rejoined the Standard & Poor's 500 index of large companies.

Revenue. Our passenger revenue increased $1.2 billion, despite a lower market price of fuel. We experienced positive market reaction to our first class upsell and Economy Comfort products. Our customers value these products, which together contributed more than $600 million in revenues. Our geographic regions performed well compared to the prior year, with the domestic region leading year-over-year unit revenue improvement. Unit revenues of the domestic region rose by over 5% with notable improvements in the New York market. New York unit revenues increased as we continue to see improvements due to our investments in JFK and LaGuardia, as well as many in-flight product enhancements. Revenues related to our international regions were generally flat year-over-year, with slight unit revenue improvements in both Atlantic and Latin America regions. Our Pacific region experienced a slight decline in unit revenues primarily due to the Yen devaluation.

Operating Expense. Total operating expense decreased $122 million from 2012. As a result, our consolidated operating cost per available seat mile ("CASM") for 2013 decreased 1% to 14.77 cents from 14.97 cents in 2012, on a 1% increase in capacity. CASM-Ex (a non-GAAP financial measure) was 9.14 cents in 2013, or 2% higher than 2012.

Changes in our total operating expenses reflect decreased fuel expense offset by higher salaries and related costs and profit sharing. Fuel expense for 2013 was $11.5 billion, including regional carriers; our average price per gallon was $3.00, which was $0.25 lower than 2012. Our average price per gallon, adjusted was $3.07 (a non-GAAP financial measure), which was $0.19 lower than 2012. Our fuel cost includes net airline segment fuel hedge gains for the year of $444 million, and a loss on refinery operations of $116 million, or $0.03 per gallon. The higher salaries expense represents wage increases and shows the continued investment we are making in our employees. Delta relies on its employees for its operational and financial success. As a result of our success in 2013, we will pay our employees record profit sharing of $506 million, which represents over 8% of an employee's annual pay, and is a 36% year-over-year increase.

Income Tax. We have released the tax valuation allowance that placed a reserve against certain tax assets. We now believe that, given the company's financial performance, we will be able to use these tax assets to offset future cash income tax liabilities. We recognized an $8.0 billion tax benefit primarily as a result of releasing the valuation, which was recorded in income tax benefit (provision) in our Consolidated Statement of Operations. Beginning in 2014, we expect to record income tax expense with an effective rate of approximately 38%. As of December 31, 2013, we have more than $15 billion of net operating loss carryforwards ("NOLs") that will be used to offset cash income taxes due on future earnings.

The non-GAAP financial measure CASM-Ex used in this section is defined and reconciled in "Supplemental Information" below. Average fuel price per gallon, adjusted is defined and reconciled in "Results of Operations - Year Ended 2013 and 2012 - Operating Expense" below.

Company Initiatives

Increasing Shareholder Value

We continue to focus on cash flow generation with the goal of further strengthening our balance sheet. We finished 2013 with $5.7 billion in unrestricted liquidity (consisting of cash, cash equivalents, short-term investments and undrawn revolving credit facility capacity). During 2013, we generated $4.5 billion in cash from operating activities, reduced debt by $1.4 billion and funded capital expenditures of $2.6 billion and returned $350 million to shareholders, while maintaining a solid liquidity position.

27

In May 2013, we announced a plan to return more than $1 billion to shareholders over the next three years. As part of this plan, our Board of Directors initiated a quarterly dividend program and declared a $0.06 per share dividend for shareholders of record as of August 9, 2013 and November 6, 2013. These dividends were paid in September 2013 and November 2013 and each totaled $51 million. In addition, the Board of Directors authorized a $500 million share repurchase program, to be completed no later than June 30, 2016. During 2013, we repurchased and retired approximately 10 million shares at a cost of approximately $250 million. On February 7, 2014, our Board of Directors declared a $0.06 dividend for shareholders of record on February 21, 2014 and payable on March 14, 2014.

Network Strategy

We are implementing several strategies that are designed to strengthen and expand our global network and presence. These include our investment in and joint venture with Virgin Atlantic, improvements at our hubs at LaGuardia and JFK in New York and the creation of an international gateway in Seattle.

Virgin Atlantic Investment. In 2013, we purchased a 49% interest in Virgin Atlantic from Singapore Airlines for $360 million. We also entered into an agreement with Virgin Atlantic with respect to operations on non-stop routes between the United Kingdom and North America. In September 2013, the U.S. Department of Transportation granted antitrust immunity on these routes.The antitrust immunized relationship allows for joint marketing and sales, coordinated pricing and revenue management, network planning and scheduling with respect to operations on routes between North America and the United Kingdom. Virgin Atlantic has a significant presence at London's Heathrow airport, the airport of choice for business travelers traveling to and from London. Along with our state of the art facility at JFK, we believe our relationship with Virgin Atlantic will provide our customers with superior service and connectivity between New York and London. Beginning January 1, 2014, we began working under the immunized relationship and published our first coordinated schedule that becomes effective April 2014.

LaGuardia. During December 2011, we closed transactions with US Airways in which we received takeoff and landing rights (each a "slot pair") at LaGuardia in exchange for slot pairs at Reagan National. This exchange allowed us to create a new domestic hub at LaGuardia. We have increased capacity at LaGuardia by approximately 50% since March 2012, adding 123 new flights and a total of 31 new destinations. We currently operate about 277 daily flights between LaGuardia and 65 cities, more than any other airline.

We are investing approximately $200 million in a renovation and expansion project at LaGuardia to enhance the customer experience. In 2012, we opened the connector linking Terminals C and D and a new SkyClub in Terminal C. We are also expanding security lanes and a baggage handling system in both terminals as well as an enhanced SkyClub in Terminal D.

JFK. While our expanded LaGuardia schedule is focused on providing industry-leading domestic service, we are optimizing our international and trans-continental flight schedule and undertaking a redevelopment project at JFK to facilitate convenient connections for our passengers and improve coordination with our SkyTeam alliance partners. Prior to beginning the redevelopment project, we primarily operated domestic flights out of Terminal 2 and international flights out of Terminal 3. Our initial five-year project to expand and enhance Terminal 4, which began in 2010, is on schedule. We have constructed nine new international gates in Terminal 4, which opened in 2013. We have relocated our operations from Terminal 3 to our newly constructed facilities at Terminal 4 and have begun the demolition of Terminal 3. During 2013, we announced plans for an additional $180 million expansion project that will add 11 more gates at Terminal 4. With the additional expansion, we will relocate our regional jet operations from Terminal 2 to Terminal 4. We expect that passengers will benefit from an enhanced customer experience and improved operational performance, including reduced taxi times and better on-time performance.

Seattle International Gateway Expansion. Seattle is one of Delta’s fastest-growing international gateways. We have recently expanded service in Seattle, with additional frequencies and destinations, both domestically and internationally. We have invested in our facilities, including a renovated lobby, a new Delta SkyClub and many other customer enhancements. By expanding in Seattle, we will have improved service for our local customers and increased connection into Asia.

Maintaining Cost Performance

Beginning in 2012, we implemented a cost initiatives program, which is expected to stem the rate of cost growth to less than 2% cost inflation annually. These initiatives are designed to improve our cost efficiency while maintaining our operational performance and revenue generation. An important component is the fleet restructuring initiative to retire older, less efficient aircraft from our fleet.

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Fleet Restructuring

Fleet restructuring is an important component of our cost initiatives, and is focused on lowering unit costs while investing in our fleet to enhance the customer experience. We are restructuring our domestic fleet by reducing our 50-seat regional flying and replacing other older, less cost effective aircraft with newer, more efficient aircraft. Agreements with SkyWest Airlines, Inc. and Bombardier Aerospace, as well as our acquisition of Endeavor, have produced a path for us to eliminate more than 200 50-seat aircraft. We are replacing these aircraft and older B-757-200 aircraft with more efficient and customer preferred CRJ-900, B-717-200 and B-737-900ER aircraft.

• In 2012, we entered into an agreement with Bombardier Aerospace to purchase 40 CRJ-900 aircraft with 12 deliveries this year and 28 in 2014.

• Also in 2012, we finalized agreements with Southwest Airlines and The Boeing Company ("Boeing") to lease 88 B-717-200 aircraft. Delivery of the aircraft began in September 2013, with a total of 13 aircraft delivered in 2013, 39 aircraft deliveries expected in 2014 and 36 aircraft deliveries expected in 2015. These B-717-200 aircraft are 110-seat aircraft and feature new, fully upgraded interiors, with 12 First Class seats, 15 Economy Comfort seats and in-flight WiFi throughout the cabin.

• In 2011, we entered into an agreement with Boeing to purchase 100 new fuel efficient B-737-900ER aircraft. We took delivery of the first B-737-900ER aircraft in September 2013 and will continue adding these aircraft to our fleet through 2018, primarily replacing older B-757-200 aircraft. We expect the B-737-900ER to offer an industry leading customer experience, including expanded carry-on baggage space and a spacious cabin.

In addition, we entered into an agreement in September 2013 with Airbus to purchase 10 international capable widebody A330-300 and 30 large narrowbody A321-200 aircraft expected to serve domestic markets. Delivery of the first A330-300 aircraft is expected to occur in spring 2015, with three additional A330-300 aircraft expected to be delivered in 2015, four aircraft in 2016 and two in 2017. Delivery of three A321-200 aircraft are scheduled for the first quarter of 2016, with 12 additional aircraft expected to be delivered later in 2016 and 15 in 2017.

As mentioned above, an important component of the fleet restructuring initiative is to reduce 50-seat CRJ aircraft, which are our least fuel efficient aircraft and have the lowest customer satisfaction ratings. We are targeting a fleet size of 100 to 125 aircraft within the next two years. Our current fleet includes aircraft we lease and aircraft that are operated for us by regional carriers that own or lease aircraft through third parties. As part of the reduction, we will retire a significant portion of the fleet that is leased by us. We expect to continue to recognize material restructuring charges, representing the remaining obligations under the leases, as we retire the leased aircraft. Although many factors could change over the next two years, we currently estimate that future charges will be between $200 million to $300 million, in addition to the $107 million recorded in 2013. The timing and amount of these charges will depend on a number of factors, including our final negotiations with lessors, the timing of removing aircraft from service and the ultimate disposition of aircraft included in the fleet restructuring program. Also, to accelerate the restructuring of the fleet, we may park a portion of the fleet on a temporary basis until contracts for aircraft flying under contract carrier agreements expire. The temporarily parked aircraft will be returned to service as aircraft flying under these expiring agreements exit the fleet. We will continue to incur operating lease expense for these temporarily parked aircraft. As a result of restructuring the fleet, we expect to benefit from improved operational and fuel efficiency, customer service and reduced future maintenance cost that we will experience over the life of the new aircraft.

Fuel Expense, including refinery results

Fuel Expense. Fuel expense is our largest expense, representing 33% of total operating expenses. For 2013, our total fuel expense decreased $787 million (including our regional carriers under capacity purchase agreements) compared to 2012. This decrease is primarily due to reduced market jet fuel prices and an increase in gains from our hedging activities. Excluding mark-to-market adjustments on hedges recorded in periods other than the settlement period ("MTM adjustments"), our fuel price per gallon, adjusted (a non-GAAP financial measure) for 2013 was $3.07 per gallon, compared to $3.26 per gallon in 2012.

The market volatility of jet fuel prices greatly impacts our fuel costs. We manage our fuel cost through three primary methods: purchase agreements, fuel hedging and the operation of a refinery.

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Fuel Purchase Cost.The market price per gallon of jet fuel decreased 4%, compared to 2012, which lowered our purchase cost of fuel. This decrease was partially offset by a 2% increase in consumption on higher capacity.

Fuel Hedging Program Impact.We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel. During 2013, our consolidated fuel hedge gain was $493 million. This hedge gain included $276 million of MTM adjustments. These MTM adjustments are based on market prices as of the end of the reporting period for contracts settling in future periods. Such market prices are not necessarily indicative of the actual future value of the underlying hedge in the contract settlement period.

Refinery Segment Impact.Global jet fuel demand continues to increase. While the advent of shale oil production in the U.S. has reduced the threat of U.S. refinery closures beyond those that have already closed, further capacity reduction is expected in Europe, thus impacting supply in the Atlantic Basin and ultimately increasing refinery margins in the U.S. Our wholly-owned subsidiaries, Monroe Energy, LLC and MIPC, LLC (collectively, “Monroe”), operate the Trainer refinery and related assets located near Philadelphia, Pennsylvania as part of our strategy to mitigate the increasing cost of the refining margin we are paying. The facilities include pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and JFK.

The refinery produces primarily gasoline, diesel and jet fuel. Under multi-year agreements, we are effectively exchanging the non-jet fuel products with Phillips 66 and BP for jet fuel to be used in our airline operations. The refinery produced approximately 162,000 barrels per day in 2013. The jet fuel produced and procured through exchanging gasoline and diesel fuel produced by the refinery provided approximately 150,000 barrels per day for use in airline operations during 2013.

A refinery is subject to U.S. Environmental Protection Agency ("EPA") requirements that are established each year to blend renewable fuels into the gasoline and on-road diesel fuel it produces. Alternatively, a refinery may purchase renewable energy credits, called RINs, from third parties in the secondary market.

Because the refinery operated by Monroe does not blend renewable fuels, it must purchase its entire RINs requirement in the secondary market or obtain a waiver from the EPA. The refinery is exposed to the market price of RINs. For example, the average historical price of ethanol RINs ranged from $0.02 to $0.05 per RIN in prior years, but the market price increased to over $1.40 per RIN during 2013; the price at December 31, 2013 was $0.34 per RIN. Compliance with the RINs requirement by purchasing RINs, if available in the secondary market, at elevated prices could have a material impact on our results of operations and cash flows for 2014. We recognized $64 million of expense related to the RINs requirement in 2013, which is included in the refinery's results. We believe that holders of RINs have been withholding them from the secondary market. This reduction of available RINs significantly impairs the secondary market as a means of compliance with the RINs requirement. Therefore, the Company is pursuing legal, regulatory and legislative solutions to this problem.

The refinery recorded a loss of $116 million in 2013. The refinery's results were impacted by the cost of RINs that far exceeded their historical averages, as discussed above. In addition, we believe that the increase in jet fuel supply due to the refinery's operation has decreased the overall market price of jet fuel, and lowered our cost of jet fuel.

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Results of Operations - 2013 Compared to 2012

Operating Revenue

	Year Ended December 31,				Increase (Decrease)			% Increase (Decrease)
(in millions)	2013		2012
Passenger:
Mainline	$	26,534	$	25,173	$	1,361		5	%
Regional carriers	6,408		6,581		(173		)	(3	)%
Total passenger revenue	32,942		31,754		1,188			4	%
Cargo	937		990		(53		)	(5	)%
Other	3,894		3,926		(32		)	(1	)%
Total operating revenue	$	37,773	$	36,670	$	1,103		3	%

			Increase (Decrease) vs. Year Ended December 31, 2012
(in millions)	Year Ended December 31, 2013		Passenger Revenue		RPMs(Traffic)		ASMs (Capacity)		Passenger Mile Yield		PRASM		Load Factor
Domestic	$	15,204	8	%	1	%	2	%	6	%	5	%	(0.8	)	pts
Atlantic	5,657		3	%	1	%	(1	)%	2	%	3	%	1.2		pts
Pacific	3,561		(2	)%	1	%	(1	)%	(2	)%	(1	)%	1.3		pts
Latin America	2,112		11	%	11	%	8	%	(1	)%	2	%	2.3		pts
Total mainline	26,534		5	%	2	%	2	%	3	%	4	%	0.3		pts
Regional carriers	6,408		(3	)%	(6	)%	(3	)%	3	%	1	%	(1.8	)	pts
Total passenger revenue	$	32,942	4	%	1	%	1	%	3	%	3	%	—		pts

Passenger Revenue. Passenger revenue increased $1.2 billion, or 4%, on a 3% PRASM increase and a 3% increase in passenger mile yield. Revenue remained strong despite lower fuel prices. In addition, the increase in passenger revenue reflects the investments for in-flight product enhancements such as the Economy Comfort product and higher corporate sales.

Our geographic regions performed well compared to the prior year, with the domestic region leading year-over-year unit revenue improvement as a result of higher passenger mile yield. Unit revenues of the domestic region rose by over 5% with notable improvements in the New York market. New York unit revenues increased as we continue to see improvements due to our investments in JFK and LaGuardia, as well as many in-flight product enhancements. Revenues related to our international regions were generally flat year-over-year, with slight unit revenue improvements in both Atlantic and Latin America regions. Our Pacific region experienced a slight decline in unit revenues primarily due to the Yen devaluation.

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Operating Expense

	Year Ended December 31,				Increase (Decrease)			% Increase (Decrease)
(in millions)	2013		2012
Aircraft fuel and related taxes	$	9,397	$	10,150	$	(753	)	(7	)%
Salaries and related costs	7,720		7,266		454			6	%
Regional carrier expense	5,669		5,647		22			—	%
Aircraft maintenance materials and outside repairs	1,852		1,955		(103		)	(5	)%
Contracted services	1,665		1,566		99			6	%
Depreciation and amortization	1,658		1,565		93			6	%
Passenger commissions and other selling expenses	1,603		1,590		13			1	%
Landing fees and other rents	1,410		1,336		74			6	%
Passenger service	762		732		30			4	%
Profit sharing	506		372		134			36	%
Aircraft rent	209		272		(63		)	(23	)%
Restructuring and other items	402		452		(50		)	NM(1)
Other	1,520		1,592		(72		)	(5	)%
Total operating expense	$	34,373	$	34,495	$	(122	)	—	%

⁽¹⁾ NM - not meaningful. For a discussion of charges recorded in restructuring and other items, see Note 16 of the Notes to the Consolidated Financial Statements.

Fuel Expense. Including regional carriers under capacity purchase agreements, fuel expense decreased $787 million because of a 4% decrease in fuel market price per gallon and fuel hedge gains, partially offset by a 2% increase in consumption. The table below presents fuel expense, gallons consumed and our average price per gallon, including the impact of fuel hedging and the refinery:

	Year Ended December 31,				Increase (Decrease)			% Increase (Decrease)
(in millions, except per gallon data)	2013		2012
Aircraft fuel and related taxes(1)	$	9,397	$	10,150	$	(753	)
Aircraft fuel and related taxes included within regional carrier expense	2,067		2,101		(34		)
Total fuel expense	$	11,464	$	12,251	$	(787	)	(6	)%
Total fuel consumption (gallons)	3,828		3,769		59			2	%
Average price per gallon	$	3.00	$	3.25	$	(0.25	)	(8	)%

⁽¹⁾ Includes the impact of fuel hedging and refinery results described further in the table below.

The table below shows the impact of hedging and the refinery on fuel expense and average price per gallon, adjusted:

									Average Price Per Gallon
	Year Ended December 31,					Increase (Decrease)			Year Ended December 31,					Increase (Decrease)
(in millions, except per gallon data)	2013			2012					2013			2012
Fuel purchase cost	$	11,792		$	12,122	$	(330	)	$	3.09		$	3.23	$	(0.14	)
Airline segment fuel hedge (gains) losses	(444		)	66		(510		)	(0.12		)	0.01		(0.13		)
Refinery segment impact	116			63		53			0.03			0.01		0.02
Total fuel expense	$	11,464		$	12,251	$	(787	)	$	3.00		$	3.25	$	(0.25	)
MTM adjustments gains	276			27		249			0.07			0.01		0.06
Total fuel expense, adjusted	$	11,740		$	12,278	$	(538	)	$	3.07		$	3.26	$	(0.19	)

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Fuel Purchase Cost. Fuel purchase cost is based on the market price for jet fuel at airport locations.

Refinery Impact. The refinery results include the impact on fuel expense of self-supply from the production of the refinery and from refined products exchanged with Phillips 66 and BP. As described in Note 2 of the Notes to the Consolidated Financial Statements, to the extent that we account for exchanges of refined products as non-monetary transactions, we include the results of those transactions within fuel expense.

Fuel Hedge (Gains) Losses and MTM Adjustments. During the year ended December 31, 2013, our airline segment fuel hedge gains of $444 million included $276 million of MTM adjustments. These MTM adjustments are based on market prices as of the end of the reporting period for contracts settling in future periods. Such market prices are not necessarily indicative of the actual future value of the underlying hedge in the contract settlement period. The gains for MTM adjustments are reflected in the table above to calculate an effective fuel cost for the period.

We adjust fuel expense for these items to arrive at a more meaningful measure of fuel cost. Our average price per gallon, adjusted (a non-GAAP financial measure) was $3.07 for the year ended December 31, 2013.

Salaries and Related Costs. The increase in salaries and related costs is primarily due to employee pay increases.

During the June 2012 quarter, we reached an agreement with ALPA that increases pay and benefits for our pilots. Our pilots and substantially all other employees received base pay increases on July 1, 2012 and received additional increases on January 1, 2013. These increases are designed both to recognize changes to the profit sharing program described below and to accelerate the planned 2013 pay increase for non-pilot employees.

Aircraft Maintenance Materials and Outside Repairs. Aircraft maintenance materials and outside repairs consists of costs associated with maintenance of aircraft used in our operations and maintenance sales to third parties by our MRO services business. The decrease in maintenance costs is primarily due to lower volume of sales to third parties of our MRO services and the cyclical timing of maintenance events on our fleet.

Contracted Services. Contracted services expense increased year-over-year due primarily to the impact of severe winter storms on our operations and costs associated with the 1% increase in capacity.

Depreciation and amortization. Depreciation and amortization expense increased year-over-year primarily due to our investment in the purchase of aircraft and aircraft modifications that upgraded aircraft interiors and enhanced our product offering.

Landing fees and other rents. Landing fees and other rents increased year-over-year primarily due to our investment in airport facilities.

Profit Sharing. Our broad based employee profit sharing program provides that, for each year in which we have an annual pre-tax profit, as defined by the terms of the program, we will pay a specified portion of that profit to employees. In determining the amount of profit sharing, the terms of the program specify the exclusion of special items, such as MTM adjustments and restructuring and other items, from pre-tax profit. During the June 2012 quarter, our profit sharing program was modified so that we will pay 10% of profits on the first $2.5 billion of annual profits effective with the plan year beginning January 1, 2013 compared to paying 15% of annual profits for the 2012 plan year. Under the program, we will continue to pay 20% of annual profits above $2.5 billion.

Aircraft Rent. Aircraft rent decreased year-over-year due primarily due to purchasing aircraft off-lease.

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Results of Operations - 2012 Compared to 2011

Operating Revenue

	Year Ended December 31,				Increase			% Increase
(in millions)	2012		2011
Passenger:
Mainline	$	25,173	$	23,843	$	1,330		6	%
Regional carriers	6,581		6,414		167			3	%
Total passenger revenue	31,754		30,257		1,497			5	%
Cargo	990		1,027		(37		)	(4	)%
Other	3,926		3,831		95			2	%
Total operating revenue	$	36,670	$	35,115	$	1,555		4	%

			Increase (Decrease) vs. Year Ended December 31, 2011
(in millions)	Year Ended December 31, 2012		Passenger Revenue		RPMs(Traffic)		ASMs (Capacity)		Passenger Mile Yield		PRASM		Load Factor
Domestic	$	14,134	7	%	1	%	—	%	6	%	7	%	0.8	pts
Atlantic	5,514		(1	)%	(4	)%	(7	)%	3	%	6	%	2.8	pts
Pacific	3,619		11	%	6	%	3	%	5	%	8	%	2.6	pts
Latin America	1,906		8	%	6	%	3	%	2	%	5	%	2.7	pts
Total mainline	25,173		6	%	1	%	(1	)%	5	%	7	%	1.7	pts
Regional carriers	6,581		3	%	(4	)%	(5	)%	7	%	8	%	0.7	pts
Total passenger revenue	$	31,754	5	%	—	%	(2	)%	5	%	7	%	1.7	pts

Passenger Revenue. Passenger revenue increased $1.5 billion, or 5%, due to an improvement in the passenger mile yield of 5%, on a 2% decline in capacity. Passenger mile yield and unit revenue increased due to fare increases, higher revenue under corporate travel contracts and improvements in our products and services.

International mainline passenger revenue increased $520 million. In early 2011, we faced industry overcapacity in the transatlantic market and in connection with our joint venture partners, AirFrance-KLM and Alitalia, we reduced capacity in underperforming markets during the second half of 2011 and in 2012. As a result, Atlantic PRASM was up 6%, driven by a 3% increase in yield on a 7% decrease in capacity. Pacific passenger revenue increased 11% on a 3% and 6% increase in capacity and traffic, respectively. These results reflect Pacific market improvement, as demand returned to levels seen prior to the March 2011 earthquake and tsunami in Japan. Latin America passenger revenue increased 8% on a 3% and 6% increase in capacity and traffic, respectively.

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Operating Expense

	Year Ended December 31,				Increase (Decrease)			% Increase (Decrease)
(in millions)	2012		2011
Aircraft fuel and related taxes	$	10,150	$	9,730	$	420		4	%
Salaries and related costs	7,266		6,894		372			5	%
Regional carrier expense	5,647		5,470		177			3	%
Aircraft maintenance materials and outside repairs	1,955		1,765		190			11	%
Passenger commissions and other selling expenses	1,590		1,682		(92		)	(5	)%
Contracted services	1,566		1,642		(76		)	(5	)%
Depreciation and amortization	1,565		1,523		42			3	%
Landing fees and other rents	1,336		1,281		55			4	%
Passenger service	732		721		11			2	%
Profit sharing	372		264		108			41	%
Aircraft rent	272		298		(26		)	(9	)%
Restructuring and other items	452		242		210			NM(1)
Other	1,592		1,628		(36		)	(2	)%
Total operating expense	$	34,495	$	33,140	$	1,355		4	%

⁽¹⁾ For a discussion of charges recorded in restructuring and other items, see Note 16 of the Notes to the Consolidated Financial Statements.

Fuel Expense. Including regional carriers under capacity purchase agreements, fuel expense increased $468 million because of a 6% increase in our average price per gallon, despite a 2% decrease in consumption. The table below presents fuel expense, gallons consumed and our average price per gallon, including the impact of fuel hedge losses of $66 million during the year ended December 31, 2012:

	Year Ended December 31,				Increase (Decrease)			% Increase (Decrease)
(in millions, except per gallon data)	2012		2011
Aircraft fuel and related taxes	$	10,150	$	9,730	$	420
Aircraft fuel and related taxes included within regional carrier expense	2,101		2,053		48
Total fuel expense	$	12,251	$	11,783	$	468		4	%
Total fuel consumption (gallons)	3,769		3,856		(87		)	(2	)%
Average price per gallon	$	3.25	$	3.06	$	0.19		6	%

The table below shows the impact of hedging and the refinery on fuel expense and average price per gallon:

									Average Price Per Gallon
	Year Ended December 31,					Increase (Decrease)			Year Ended December 31,					Increase (Decrease)
(in millions, except per gallon data)	2012		2011						2012		2011
Fuel purchase cost	$	12,122	$	12,203		$	(81	)	$	3.23	$	3.17		$	0.06
Fuel hedge losses (gains)	66		(420		)	486			0.01		(0.11		)	0.12
Refinery segment impact	63		—			63			0.01		—			0.01
Total fuel expense	$	12,251	$	11,783		$	468		$	3.25	$	3.06		$	0.19
MTM adjustments gains (losses)	27		(26		)	53			0.01		(0.01		)	0.02
Total fuel expense, adjusted	$	12,278	$	11,757		$	521		$	3.26	$	3.05		$	0.21

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Salaries and Related Costs. The increase in salaries and related costs is primarily due to employee pay increases, increases in pension expense and other benefits.

During the June 2012 quarter, we reached an agreement with ALPA that increases pay and benefits for our pilots. Our pilots and substantially all other employees received base pay increases on July 1, 2012 and received additional increases on January 1, 2013. These increases are designed both to recognize changes to the profit sharing program described below and to accelerate the planned 2013 pay increase for non-pilot employees.

Aircraft Maintenance Materials and Outside Repairs. Aircraft maintenance materials and outside repairs consists of costs associated with maintenance of aircraft used in our operations and maintenance sales to third parties by our MRO services business. The increase in maintenance costs is primarily due to the cyclical timing of maintenance events on our fleet. Additionally, maintenance cost increased as we accelerated certain maintenance events into 2012, resulting in a lower total cost for those activities, and completed maintenance initiatives to improve our operational reliability.

Passenger Commissions and Other Selling Expenses. The decrease in passenger commissions and other selling expenses is primarily due to lower booking fees and international commission rates, partially offset by increases in sales.

Contracted Services. Contracted services expense decreased year-over-year due primarily to the impact of severe winter storms on our operations in the March 2011 quarter.

Profit Sharing. Our broad based employee profit sharing program provides that, for each year in which we have an annual pre-tax profit, as defined by the terms of the program, we will pay a specified portion of that profit to employees. In determining the amount of profit sharing, the terms of the program specify the exclusion of special items, such as MTM adjustments and restructuring and other items, from pre-tax profit. During the June 2012 quarter, our profit sharing program was modified so that we will pay 10% of profits on the first $2.5 billion of annual profits effective with the plan year beginning January 1, 2013 compared to paying 15% of annual profits for the 2012 plan year. Under the program, we will continue to pay 20% of annual profits above $2.5 billion.

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Non-Operating Results

	Year Ended December 31,									Favorable (Unfavorable)
(in millions)	2013			2012			2011			2013 vs. 2012		2012 vs. 2011
Interest expense, net	$	(698	)	$	(812	)	$	(901	)	$	114	$	89
Amortization of debt discount, net	(154		)	(193		)	(193		)	39		—
Loss on extinguishment of debt	—			(118		)	(68		)	118		(50		)
Miscellaneous, net	(21		)	(27		)	(44		)	6		17
Total other expense, net	$	(873	)	$	(1,150	)	$	(1,206	)	$	277	$	56

The decline in interest expense, net is driven by reduced levels of debt and lower interest rates. Our principal amount of debt has declined from $15.4 billion at the beginning of 2011 to $11.2 billion at December 31, 2013. During 2012 and 2011, we recorded $118 million and $68 million in losses from the early extinguishment of debt, which primarily related to the write-off of debt discounts. These debt discounts are primarily a result of fair value adjustments recorded in 2008 to reduce the carrying value of Northwest long-term debt due to purchase accounting. As a result of these write-offs and scheduled amortization, our unamortized debt discount has decreased from $935 million at the beginning of 2011 to $383 million at December 31, 2013.

Income Taxes

We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to continuing operations. The following table shows the components of our income tax benefit (provision):

	Year Ended December 31,
(in millions)	2013			2012			2011
Current tax benefit (provision):
Federal	$	24		$	—		$	91
State and local	(3		)	15			(6		)
International	1			(14		)	(2		)
Deferred tax provision:
Federal	7,197			(4		)	2
State and local	794			(13		)	—
Income tax benefit (provision)	$	8,013		$	(16	)	$	85

During the December 2013 quarter, after considering all relevant factors, we concluded that our deferred income tax assets are more likely than not to be realized. Accordingly, at December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets. The release of the allowance primarily resulted in a net tax benefit of $8.0 billion that was recorded in income tax benefit (provision) in our Consolidated Statement of Operations. Beginning in 2014, we expect to record income tax expense with an effective rate of approximately 38%. At December 31, 2013, we had $15.3 billion of U.S. federal pre-tax net operating loss carryforwards. Accordingly, we believe we will not pay any cash federal income taxes during the next several years. Our U.S. federal pre-tax net operating loss carryforwards do not begin to expire until 2023. See Note 12 of the Notes to the Consolidated Financial Statements for more information.

During 2012 and 2011, we did not record an income tax provision for U.S. federal income tax purposes since our deferred tax assets were fully reserved by a valuation allowance. During 2011, we recorded an income tax benefit of $85 million, primarily related to the recognition of alternative minimum tax refunds.

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Financial Condition and Liquidity

We expect to meet our cash needs for the next 12 months from cash flows from operations, cash and cash equivalents, short-term investments and financing arrangements. As of December 31, 2013, we had $5.7 billion in unrestricted liquidity, consisting of $3.8 billion in cash and cash equivalents and short-term investments and $1.9 billion in undrawn revolving credit facilities.

Sources of Liquidity

Operating Cash Flow

Cash flows from operating activities continue to provide our primary source of liquidity. We generated positive cash flows from operations of $4.5 billion in 2013, $2.5 billion in 2012 and $2.8 billion in 2011. We also expect to generate positive cash flows from operations in 2014.

Our operating cash flows can be impacted by the following factors:

Seasonality of Advance Ticket Sales. We sell tickets for air travel in advance of the customer's travel date, and receive cash payment at the time of sale. As a result, we record the cash received on advance sales as deferred revenue in Air Traffic Liability. The Air Traffic Liability increases during the spring as we have increased sales in advance of the summer peak travel season. Our cash balances are typically higher at the beginning of the summer and at a low point during the winter.

Fuel and Fuel Hedge Margins. The cost of jet fuel is our most significant expense, representing approximately 33% of our total operating expenses for 2013. The market price for jet fuel is highly volatile and can vary significantly from period to period. This price volatility affects our cash flows from operations, impacting comparability from period to period.

We have jet fuel inventories at various airport locations, which are used in our airline operations. Also, we acquired the Trainer oil refinery in 2012, which, as part of refinery operations, has refined oil product inventories. Jet fuel and refined oil product inventories are recorded as Fuel Inventory. Fuel Inventory increased during 2012 as a result of the start up of refinery operations in the September quarter and the transition of our fuel supply program. The increase in Fuel Inventory to achieve normal operating levels at our refinery was offset by a similar increase in accounts payable, and therefore, did not have a significant impact on operating cash flows during 2012. The remaining $180 million increase in Fuel Inventory was a result of the transition in Delta's fuel supply program.

As part of our fuel hedging program, we may be required to pay hedge margin to counterparties when our portfolio is in a loss position. Conversely, if our portfolio with counterparties is in a gain position, we may receive hedge margin. Our future cash flows are impacted depending upon the nature of our derivative contracts and the market price of the commodities underlying our derivative contracts

Timing of SkyMiles Sales. In December 2011, we amended our American Express agreements and agreed to sell $675 million of unrestricted SkyMiles to American Express in each December from 2011 through 2014. Under the December 2011 amendment, American Express purchased $675 million of unrestricted SkyMiles in each of 2013, 2012 and 2011. In 2011, this operating cash flow was largely offset by working capital changes. We anticipate American Express will make an additional purchase of $675 million of unrestricted SkyMiles in 2014.

In 2008, we entered into a multi-year extension of our American Express agreements and received $1.0 billion from American Express for an advance purchase of restricted SkyMiles. The agreement, as modified, provided that our obligations with respect to the advance purchase would be satisfied as American Express uses the purchased miles over a specified future period (“SkyMiles Usage Period”). During the SkyMiles Usage Period, which commenced in December 2011, American Express utilized SkyMiles valued at $333 million annually over three years beginning 2012 instead of paying cash to Delta for SkyMiles used. This draw down of $333 million in SkyMiles reduced cash flows from operations in 2012 compared to 2011. In December 2013, we and American Express amended this agreement to allow American Express to use these SkyMiles immediately and without restriction.

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Pension Contributions. We sponsor defined benefit pension plans for eligible employees and retirees. These plans are closed to new entrants and are frozen for future benefit accruals. Our funding obligations for these plans are governed by the Employee Retirement Income Security Act, as modified by the The Pension Protection Act of 2006. We contributed $914 million in 2013, including $250 million above the minimum funding levels, $697 million in 2012 and $598 million in 2011 to our defined benefit pension plans. We estimate the funding under these plans will total approximately $925 million in 2014, including $250 million above the minimum funding requirements.

Undrawn Lines of Credit

We have available $1.9 billion in undrawn lines of credit. As described in Note 8 of the Notes to the Consolidated Financial Statements, we have an undrawn $1.2 billion first-lien revolving credit facility, as part of our 2011 Credit Facilities. The revolving credit facility carries a variable interest rate and expires in April 2016.

We also have an undrawn $450 million revolving credit facility included in the 2012 Pacific Facilities, as described in Note 8 of the Notes to the Consolidated Financial Statements. The 2012 Pacific Facilities are secured by our Pacific routes and slots. This revolving credit facility carries a variable interest rate and expires in October 2017. In addition, we have undrawn bank revolving credit facilities of $250 million.

The credit facilities mentioned above have covenants, such as collateral coverage ratios. If we are not in compliance with these covenants, we may be required to repay amounts borrowed under the credit facilities and may not be able to draw on the revolving credit facilities.

Other

Our ability to obtain additional financing, if needed, on acceptable terms could be adversely affected by the fact that a significant portion of our assets are subject to liens.

Investing and Financing

Investing Activities

We incurred capital expenditures of $2.6 billion in 2013, $2.0 billion in 2012 and $1.3 billion in 2011. Our capital expenditures were primarily for the purchase of aircraft and aircraft modifications that upgraded aircraft interiors and enhanced our product offering. Also during 2013, we purchased a 49% equity investment in Virgin Atlantic for $360 million.

We have committed to future aircraft purchases that will require significant capital investment, and have obtained long-term financing commitments for a substantial portion of the purchase price of these aircraft. We expect that we will invest approximately $2.3 billion in 2014 primarily for aircraft and aircraft modifications. We expect that the 2014 investments will be funded through cash from operations and new financings.

Financings

At December 31, 2013, total debt and capital leases, including current maturities, was $11.3 billion, a $1.4 billion reduction from December 31, 2012 and a $5.9 billion reduction from December 31, 2009. We have focused on reducing our total debt over the past few years as part of our strategy to strengthen our balance sheet. In addition, we have refinanced previous financing transactions, which we expect to reduce our total future interest expense.

In May 2013, we announced a plan to return more than $1 billion to shareholders over the next three years. As part of this plan, our Board of Directors initiated a quarterly dividend program and declared a $0.06 per share dividend in both August 2013 and November 2013. These dividends were paid in September 2013 and November 2013 and each totaled $51 million. In addition, the Board of Directors authorized a $500 million share repurchase program, to be completed no later than June 30, 2016. During 2013, we repurchased and retired approximately 10 million shares at a cost of approximately $250 million.

In 2013, we received $268 million in financing proceeds from long-term debt, which is secured by aircraft delivered in 2013. In 2012, we received $480 million in financing proceeds from long-term debt secured by aircraft previously financed by debt. In 2012, we also refinanced $1.7 billion in debt and undrawn revolving credit facilities secured by our Pacific routes and slots, which resulted in a lower interest rate.

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Contractual Obligations

The following table summarizes our contractual obligations at December 31, 2013 that we expect will be paid in cash. The table does not include amounts that are contingent on events or other factors that are uncertain or unknown at this time, including legal contingencies, uncertain tax positions and amounts payable under collective bargaining arrangements, among others. In addition, the table does not include expected significant cash payments which are generally ordinary course of business obligations that do not include contractual commitments.

The amounts presented are based on various estimates, including estimates regarding the timing of payments, prevailing interest rates, volumes purchased, the occurrence of certain events and other factors. Accordingly, the actual results may vary materially from the amounts presented in the table.

	Contractual Obligations by Year(1)
(in millions)	2014		2015		2016		2017		2018		Thereafter		Total
Long-term debt (see Note 8)
Principal amount	$	1,491	$	1,089	$	1,472	$	2,190	$	2,159	$	2,827	$	11,228
Interest payments	510		440		370		290		230		460		2,300
Capital lease obligations (see Note 9)	165		158		143		100		54		74		694
Operating lease payments (see Note 9)	1,429		1,356		1,186		1,026		831		5,666		11,494
Aircraft purchase commitments (see Note 10)	1,585		1,215		1,700		1,495		450		2,700		9,145
Contract carrier obligations (see Note 10)	2,110		2,040		1,780		1,560		1,320		1,930		10,740
Employee benefit obligations (see Note 11)	810		760		690		670		650		8,260		11,840
Other obligations	790		580		530		390		430		1,420		4,140
Total	$	8,890	$	7,638	$	7,871	$	7,721	$	6,124	$	23,337	$	61,581

⁽¹⁾  For additional information, see the Notes to the Consolidated Financial Statements referenced in the table above.

Long-Term Debt, Principal Amount. Represents scheduled principal payments on long-term debt.

Long-Term Debt, Interest Payments. Represents estimated interest payments under our long-term debt based on the interest rates specified in the applicable debt agreements. Interest payments on variable interest rate debt were calculated using LIBOR at December 31, 2013.

Aircraft Purchase Commitments. Represents our commitments to purchase 88 B-737-900ER, 30 A321-200, 28 CRJ-900, 18 B-787-8 aircraft and 10 A330-300 aircraft. Our purchase commitment for 18 B-787-8 aircraft provides for certain aircraft substitution rights.

Contract Carrier Obligations. Represents our estimated minimum fixed obligations under capacity purchase agreements with regional carriers. The reported amounts are based on (1) the required minimum levels of flying by our contract carriers under the applicable agreements and (2) assumptions regarding the costs associated with such minimum levels of flying.

Employee Benefit Obligations. Represents primarily (1) our estimated minimum required funding for our qualified defined benefit pension plans based on actuarially determined estimates and (2) projected future benefit payments from our unfunded postretirement and postemployment plans. For additional information about our employee benefit obligations, see “Critical Accounting Policies and Estimates.”

Other Obligations. Represents estimated purchase obligations under which we are required to make minimum payments for goods and services, including but not limited to insurance, marketing, maintenance, technology, sponsorships and other third party services and products. Additionally, other obligations includes estimates of lease payments on the remaining 75 B-717-200 aircraft still to be delivered in 2014 and 2015 from the agreements entered into in 2012 with Southwest Airlines and Boeing to lease 88 B-717-200 aircraft .

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Critical Accounting Policies and Estimates

Our critical accounting policies and estimates are those that require significant judgments and estimates. Accordingly, the actual results may differ materially from these estimates. For a discussion of these and other accounting policies, see Note 1 of the Notes to the Consolidated Financial Statements.

Frequent Flyer Program

Our frequent flyer program (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 and airlines that participate in the SkyMiles Program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines.

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.

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation. We value each deliverable on a standalone basis. Our estimate of the standalone 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 standalone selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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. A hypothetical 10% increase in our estimate of the standalone selling price of a mileage credit would decrease passenger revenue by approximately $50 million, as a result of an increase in the amount of revenue deferred from the mileage component of passenger ticket sales.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

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Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years. At December 31, 2013, the aggregate deferred revenue balance associated with the SkyMiles Program was $4.4 billion. A hypothetical 1% change in the number of outstanding miles estimated to be redeemed would result in a $28 million impact on our deferred revenue liability at December 31, 2013.

Goodwill and Indefinite-Lived Intangible Assets

We assess our goodwill and indefinite-lived intangible assets under a qualitative or quantitative approach. Under a qualitative approach, we consider many market factors, including those listed under Key Assumptions below. We analyze these market factors to determine if events and circumstances have affected the fair value of goodwill and indefinite-lived intangible assets. If we determine that it is more likely than not that the asset value may be impaired, we use the quantitative approach to assess the asset's fair value and the amount of the impairment. Under a quantitative approach, we calculate the fair value of the asset using the Key Assumptions listed below. If the asset's carrying value exceeds its fair value calculated using the quantitative approach, we will record an impairment charge for the difference in fair value and carrying value.

When we evaluate goodwill for impairment using a quantitative approach, we estimate the fair value of the reporting unit by considering market capitalization and other factors. When we perform a quantitative impairment assessment of our indefinite-lived intangible assets, fair value is estimated based on (1) recent market transactions, where available, (2) a combination of limited market transactions and the lease savings method for certain airport slots (which reflects potential lease savings from owning the slots rather than leasing them from another airline at market rates), (3) the royalty method for the Delta tradename (which assumes hypothetical royalties generated from using our tradename) or (4) projected discounted future cash flows (an income approach).

Key Assumptions. The key assumptions in our impairment tests include (1) our projected revenues, expenses and cash flows, (2) an estimated weighted average cost of capital, (3) assumed discount rates depending on the asset and (4) a tax rate. These assumptions are consistent with those hypothetical market participants would use. Since we are required to make estimates and assumptions when evaluating goodwill and indefinite-lived intangible assets for impairment, the actual amounts may differ materially from these estimates. In addition, we consider the amount the intangible assets' fair value exceeded their carrying value in the most recent fair value measurement using a quantitative approach.

Changes in certain events and circumstances could result in impairment. Factors which could cause impairment include, but are not limited to, (1) negative trends in our market capitalization, (2) an increase in fuel prices, (3) declining passenger mile yields, (4) lower passenger demand as a result of a weakened U.S. and global economy, (5) interruption to our operations due to a prolonged employee strike, terrorist attack, or other reasons and (6) changes to the regulatory environment.

We assessed each of the above assumptions in our most recent impairment analyses. The combination of our most recently completed annual results and our projected revenues, expenses and cash flows more than offset the impact of fuel prices and other airline input costs. The stabilizing operating environment for U.S. airlines has resulted in annual yields increasing along with load factors, leading to improved financial results.

Goodwill. Our goodwill balance was $9.8 billion at December 31, 2013. We determined that there was no indication that Goodwill was impaired based upon our qualitative assessment of all relevant factors, including applicable factors noted in "Key Assumptions" above.

Identifiable Intangible Assets. Our identifiable intangible assets had a net carrying amount of $4.7 billion at December 31, 2013. Indefinite-lived assets are not amortized and consist primarily of routes, slots, the Delta tradename and assets related to SkyTeam and collaborative arrangements.

In 2013, we determined that there was no indication that our indefinite-lived intangible assets were impaired based upon our assessments. These assessments included analyses and weighting of all relevant factors, including the significant inputs and key assumptions which impact the fair value of our indefinite-lived intangible assets.

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Long-Lived Assets

Our flight equipment and other long-lived assets have a recorded value of $21.9 billion at December 31, 2013. This value is based on various factors, including the assets' estimated useful lives and salvage values. 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.

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.

Income Tax Valuation Allowance

We periodically assess whether it is more likely than not that we will generate sufficient taxable income to realize our deferred income tax assets. We establish valuation allowances if it is not likely we will realize our deferred income tax assets. In making this determination, we consider all available positive and negative evidence and make certain assumptions. We consider, among other things, our future projections of sustained profitability, deferred income tax liabilities, the overall business environment, our historical financial results, our industry's historically cyclical financial results and potential current and future tax planning strategies. We recorded a full valuation allowance in 2004 due to our cumulative loss position at that time, compounded by the negative industry-wide business trends and outlook. At December 31, 2012, we had an $11.0 billion valuation allowance established against our deferred income tax assets, which represented a full valuation allowance against our net deferred income tax assets.

For 2012, we recorded a pre-tax profit of $1.0 billion, and during 2012 we moved from a three-year cumulative loss position to a cumulative income position for the first time since we established the full valuation allowance. However given the industry's recent history of significant losses, we concluded as of December 31, 2012 that another year of significant profitability was needed to support a release of valuation allowance.

During 2013, we continued our trend of sustained profitability, recording a pre-tax profit of $2.5 billion for the year. During the December 2013 quarter, after considering all relevant factors, we concluded that our deferred income tax assets are more likely than not to be realized. In evaluating the likelihood of utilizing our net deferred net assets, the significant relevant factors that we considered are: (1) our recent history of profitability; (2) growth in the U.S. and global economies; (3) forecast of airline revenue trends; (4) estimate of future fuel prices; and (5) future impact of taxable temporary differences. Accordingly, at December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets, primarily resulting in the $8.0 billion benefit in our provision for income taxes.

Defined Benefit Pension Plans

We sponsor defined benefit pension plans for eligible employees and retirees. These plans are closed to new entrants and frozen for future benefit accruals. As of December 31, 2013, the unfunded benefit obligation for these plans recorded on our Consolidated Balance Sheet was $10.1 billion. During 2013, we contributed $914 million to these plans and recorded $354 million of expense in salaries and related costs on our Consolidated Statement of Operations. In 2014, we estimate we will contribute approximately $925 million to these plans, including $250 million of contributions above the minimum funding requirements, and that our expense will be approximately $230 million. The most critical assumptions impacting our defined benefit pension plan obligations and expenses are the discount rate and the expected long-term rate of return on the plan assets.

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Weighted Average Discount Rate. We determine our weighted average discount rate on our measurement date primarily by reference to annualized rates earned on high quality fixed income investments and yield-to-maturity analysis specific to our estimated future benefit payments. We used a weighted average discount rate to value the obligations of 5.01% and 4.11% at December 31, 2013 and 2012, respectively. Our weighted average discount rate for net periodic pension benefit cost in each of the past three years has varied from the rate selected on our measurement date, ranging from 4.10% to 5.70% between 2013 and 2011.

Expected Long-Term Rate of Return. Our expected long-term rate of return on plan assets is based primarily on plan-specific investment studies using historical market return and volatility data.Modest excess return expectations versus some public market indices are incorporated into the return projections based on the actively managed structure of the investment programs and their records of achieving such returns historically. We also expect to receive a premium for investing in less liquid private markets.We review our rate of return on plan asset assumptions annually.Our annual investment performance for one particular year does not, by itself, significantly influence our evaluation.Our actual historical annualized three and five year rate of return on plan assets for our defined benefit pension plans was approximately 9% and 12%, respectively, as of December 31, 2013. The investment strategy for our defined benefit pension plan assets is to use a diversified mix of global public and private equity portfolios, public and private fixed income portfolios and private real estate and natural resource investments to earn a long-term investment return that meets or exceeds our annualized return target.Our expected long-term rate of return on assets for net periodic pension benefit cost for the year endedDecember 31, 2013 was 9%.

The impact of a 0.50% change in these assumptions is shown in the table below:

Change in Assumption	Effect on 2014 Pension Expense	Effect on Accrued Pension Liability at December 31, 2013
0.50% decrease in weighted average discount rate	—	+$1.1 billion
0.50% increase in weighted average discount rate	-$5 million	-$1.1 billion
0.50% decrease in expected long-term rate of return on assets	+$50 million	—
0.50% increase in expected long-term rate of return on assets	-$50 million	—

Funding. Our funding obligations for qualified defined benefit plans are governed by the Employee Retirement Income Security Act. The Pension Protection Act of 2006 allows commercial airlines to elect alternative funding rules (“Alternative Funding Rules”) for defined benefit plans that are frozen. Delta elected the Alternative Funding Rules under which the unfunded liability for a frozen defined benefit plan may be amortized over a fixed 17-year period and is calculated using an8.85%discount rate.

While the Pension Protection Act makes our funding obligations for these plans more predictable, factors outside our control continue to have an impact on the funding requirements. Estimates of future funding requirements are based on various assumptions and can vary materially from actual funding requirements. Assumptions include, among other things, the actual and projected market performance of assets; statutory requirements; and demographic data for participants. For additional information, see Note 11 of the Notes to the Consolidated Financial Statements.

Recent Accounting Standards

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

Recently issued accounting guidance revises the reporting of items reclassified out of accumulated other comprehensive income and is effective for fiscal years beginning after December 15, 2012. We adopted this guidance in the March 2013 quarter and have presented amounts reclassified out of accumulated other comprehensive income in a note to the financial statements. For more information about accumulated other comprehensive income (loss), see Note 14.

Presentation of Comprehensive Income

In June 2011, the Financial Accounting Standards Board issued "Presentation of Comprehensive Income." The standard revises the presentation and prominence of the items reported in other comprehensive income and is effective retrospectively for fiscal years beginning after December 15, 2011. We adopted this standard in 2012 and have presented comprehensive income in our Consolidated Statements of Comprehensive Income (Loss).

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Supplemental Information

We sometimes use information that is derived from the Consolidated Financial Statements, but that is not presented in accordance with GAAP. Certain of this information is considered to be “non-GAAP financial measures” under the U.S. Securities and Exchange Commission rules. The non-GAAP financial measures should be considered in addition to results prepared in accordance with GAAP, but should not be considered a substitute for or superior to GAAP results.

The following table shows a reconciliation of CASM (a GAAP measure) to CASM-Ex (a non-GAAP financial measure). We exclude the following items from CASM to determine CASM-Ex for the reasons described:

• Aircraft fuel and related taxes. The volatility in fuel prices impacts the comparability of year-over-year financial performance. The exclusion of aircraft fuel and related taxes from this measure (including our regional carriers under capacity purchase arrangements) allows investors to better understand and analyze our non-fuel costs and our year-over-year financial performance.

• Ancillary businesses. Our ancillary businesses include aircraft maintenance and staffing services we provide to third parties and our vacation wholesale operations. Because these businesses are not related to the generation of a seat mile, we exclude the costs related to these businesses from this measure to provide a more meaningful comparison of the costs of our airline operations to the rest of the airline industry.

• Profit sharing. We exclude profit sharing because this exclusion allows investors to better understand and analyze our recurring cost performance and provides a more meaningful comparison of our core operating costs to the airline industry.

• Restructuring and other items. Because of the variability in restructuring and other items, the exclusion of this item from this measure is helpful to investors to analyze our core operational performance in the periods shown.

• MTM adjustments. MTM adjustments are based on market prices as of the end of the reporting period for contracts settling in future periods. Such market prices are not necessarily indicative of the actual future value of the underlying hedge in the contract settlement period. Therefore, excluding these adjustments allows investors to better understand and analyze our costs for the periods reported.

	Year Ended December 31,
	2013			2012
CASM		14.77	¢		14.97	¢
Items excluded:
Aircraft fuel and related taxes	(5.04		)	(5.32		)
Ancillary businesses	(0.32		)	(0.38		)
Profit sharing	(0.22		)	(0.16		)
Restructuring and other items	(0.17		)	(0.20		)
MTM adjustments	0.12			0.01
CASM-Ex		9.14	¢		8.92	¢

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Glossary of Defined Terms

ASM - Available Seat Mile. A measure of capacity. ASMs equal the total number of seats available for transporting passengers during a reporting period multiplied by the total number of miles flown during that period.

CASM - (Operating) Cost per Available Seat Mile. The amount of operating cost incurred per ASM during a reporting period.

CASM-Ex - The amount of operating cost incurred per ASM during a reporting period, excluding aircraft fuel and related taxes, ancillary businesses, profit sharing, restructuring and other items and MTM adjustments for fuel hedges recorded in periods other than the settlement period.

Passenger Load Factor - A measure of utilized available seating capacity calculated by dividing RPMs by ASMs for a reporting period.

Passenger Mile Yield or Yield - The amount of passenger revenue earned per RPM during a reporting period.

PRASM - Passenger Revenue per ASM. The amount of passenger revenue earned per ASM during a reporting period. PRASM is also referred to as “unit revenue.”

RPM - Revenue Passenger Mile. One revenue-paying passenger transported one mile. RPMs equal the number of revenue passengers during a reporting period multiplied by the number of miles flown by those passengers during that period. RPMs are also referred to as “traffic.”

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ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We have market risk exposure related to aircraft fuel prices, interest rates and foreign currency exchange rates. Market risk

is the potential negative impact of adverse changes in these prices or rates on our Consolidated Financial Statements. In an

effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as

market conditions change. We expect adjustments to the fair value of financial instruments to result in ongoing volatility in

earnings and stockholders' equity.

The following sensitivity analysis does not consider the effects of a change in demand for air travel, the economy as a whole or actions we may take to seek to mitigate our exposure to a particular risk. For these and other reasons, the actual results of changes in these prices or rates may differ materially from the following hypothetical results.

Aircraft Fuel Price Risk

Changes in aircraft fuel prices materially impact our results of operations.We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel.We utilize several different contract and commodity types in this program andfrequently test its economic effectiveness against our financial targets.We rebalance the hedge portfolio from time to time according to market conditions, which may result in locking in gains or losses on hedge contracts prior to their settlement dates.

Our fuel hedge portfolio consists of call options; put options; combinations of two or more call options and put options; swap contracts; and futures contracts.The products underlying the hedge contracts include crude oil, diesel fuel and jet fuel, as these commodities are highly correlated with the price of jet fuel that we consume. Our fuel hedge contracts contain margin funding requirements. The margin funding requirements may cause us to post margin to counterparties or may cause counterparties to post margin to us as market prices in the underlying hedged items change. If fuel prices change significantly from the levels existing at the time we enter into fuel hedge contracts, we may be required to post a significant amount of margin. We may adjust our hedge portfolio from time to time in response to margin posting requirements.

For the year endedDecember 31, 2013, aircraft fuel and related taxes, including our regional carriers under capacity purchase agreements, accounted for $11.5 billion, or 33%, of our total operating expense. We recognized $493 million of net fuel hedge gains during the year ended December 31, 2013, including $276 million of mark-to-market gains primarily relating to hedge contracts settling in future periods.

The following table shows the projected cash impact to fuel cost assuming 10% and 20% increases or decreases in fuel prices. The hedge gain (loss) reflects the change in the projected cash settlement value of our open fuel hedge contracts at December 31, 2013 based on their contract settlement dates, assuming the same 10% and 20% changes.

	Year Ending December 31, 2014								Fuel Hedge Margin (Posted to) Received from Counterparties
(in millions)	(Increase) Decrease to Unhedged Fuel Cost(1)			Hedge Gain (Loss)(2)		Net Impact
+ 20%	$	(2,290	)	$	170	$	(2,120	)	$	220
+ 10%	(1,140		)	150		(990		)	80
- 10%	1,140			50		1,190			30
- 20%	2,290			10		2,300			(30		)

⁽¹⁾  Projections based upon the (increase) decrease to unhedged fuel cost as compared to the jet fuel price per gallon of $3.00, excluding transportation costs and taxes, at December 31, 2013 and estimated fuel consumption of 3.9 billion gallons for the year ending December 31, 2014.

⁽²⁾  Projections based on average futures prices by contract settlement month compared to futures prices at December 31, 2013.

Interest Rate Risk

Our exposure to market risk from adverse changes in interest rates is primarily associated with our long-term debt obligations. Market risk associated with our fixed and variable rate long-term debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates.

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At December 31, 2013, we had $4.9 billion of fixed-rate long-term debt and $6.3 billion of variable-rate long-term debt. An increase of 100 basis points in average annual interest rates would have decreased the estimated fair value of our fixed-rate long-term debt by $210 million at December 31, 2013 and would have increased the annual interest expense on our variable-rate long-term debt by $44 million, exclusive of the impact of our interest rate hedge contracts.

Foreign Currency Exchange Risk

We are subject to foreign currency exchange rate risk because we have revenue and expense denominated in foreign currencies with our primary exposures being the Japanese yen and Canadian dollar. To manage exchange rate risk, we execute both our international revenue and expense transactions in the same foreign currency to the extent practicable. From time to time, we may also enter into foreign currency option and forward contracts. At December 31, 2013, we had open foreign currency forward contracts totaling a $257 million asset position. We estimate that a 10% depreciation or appreciation in the price of the Japanese yen and Canadian dollar in relation to the U.S. dollar would change the projected cash settlement value of our open hedge contracts by a $80 million gain or $100 million loss, respectively, for the year ending December 31, 2014.

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ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

	Page
Report of Independent Registered Public Accounting Firm	50
Consolidated Balance Sheets - December 31, 2013 and 2012	51
Consolidated Statements of Operations for the years ended December 31, 2013, 2012 and 2011	52
Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2013, 2012 and 2011	53
Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012 and 2011	54
Consolidated Statements of Stockholders' Equity (Deficit) for the years ended December 31, 2013, 2012 and 2011	55
Notes to the Consolidated Financial Statements	56

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Delta Air Lines, Inc.

We have audited the accompanying consolidated balance sheets of Delta Air Lines, Inc. (the Company) as of December 31, 2013 and 2012, and the related consolidated statements of operations, comprehensive income (loss), stockholders' equity (deficit), and cash flows for each of the three years in the period ended December 31, 2013. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Delta Air Lines, Inc. at December 31, 2013 and 2012, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2013, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Delta Air Lines, Inc.'s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) and our report dated February 21, 2014 expressed an unqualified opinion thereon.

Atlanta, Georgia	/s/ Ernst & Young LLP
February 21, 2014

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DELTA AIR LINES, INC.

Consolidated Balance Sheets

	December 31,
(in millions, except share data)	2013			2012
ASSETS
Current Assets:
Cash and cash equivalents	$	2,844		$	2,416
Short-term investments	959			958
Restricted cash, cash equivalents and short-term investments	122			375
Accounts receivable, net of an allowance for uncollectible accounts of $23 and $36 at December 31, 2013 and 2012, respectively	1,609			1,693
Fuel inventory	706			619
Expendable parts and supplies inventories, net of an allowance for obsolescence of $118 and $127 at December 31, 2013 and 2012, respectively	357			404
Deferred income taxes, net	1,736			463
Prepaid expenses and other	1,318			1,344
Total current assets	9,651			8,272
Property and Equipment, Net:
Property and equipment, net of accumulated depreciation and amortization of $7,792 and $6,656 at December 31, 2013 and 2012, respectively	21,854			20,713
Other Assets:
Goodwill	9,794			9,794
Identifiable intangibles, net of accumulated amortization of $738 and $670 at December 31, 2013 and 2012, respectively	4,658			4,679
Deferred income taxes, net	4,992			—
Other noncurrent assets	1,303			1,092
Total other assets	20,747			15,565
Total assets	$	52,252		$	44,550
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current Liabilities:
Current maturities of long-term debt and capital leases	$	1,547		$	1,627
Air traffic liability	4,122			3,696
Accounts payable	2,300			2,293
Accrued salaries and related benefits	1,926			1,680
Frequent flyer deferred revenue	1,861			1,806
Taxes payable	673			585
Fuel card obligation	602			455
Other accrued liabilities	1,121			1,128
Total current liabilities	14,152			13,270
Noncurrent Liabilities:
Long-term debt and capital leases	9,795			11,082
Pension, postretirement and related benefits	12,392			16,005
Frequent flyer deferred revenue	2,559			2,628
Deferred income taxes, net	—			2,047
Other noncurrent liabilities	1,711			1,649
Total noncurrent liabilities	26,457			33,411
Commitments and Contingencies
Stockholders' Equity (Deficit):
Common stock at $0.0001 par value; 1,500,000,000 shares authorized, 869,484,981 and 867,866,505 shares issued at December 31, 2013 and 2012, respectively	—			—
Additional paid-in capital	13,982			14,069
Retained earnings (accumulated deficit)	3,049			(7,389		)
Accumulated other comprehensive loss	(5,130		)	(8,577		)
Treasury stock, at cost, 18,041,848 and 16,464,472 shares at December 31, 2013 and 2012, respectively	(258		)	(234		)
Total stockholders' equity (deficit)	11,643			(2,131		)
Total liabilities and stockholders' equity (deficit)	$	52,252		$	44,550
The accompanying notes are an integral part of these Consolidated Financial Statements.

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DELTA AIR LINES, INC.

Consolidated Statements of Operations

	Year Ended December 31,
(in millions, except per share data)	2013			2012			2011
Operating Revenue:
Passenger:
Mainline	$	26,534		$	25,173		$	23,843
Regional carriers	6,408			6,581			6,414
Total passenger revenue	32,942			31,754			30,257
Cargo	937			990			1,027
Other	3,894			3,926			3,831
Total operating revenue	37,773			36,670			35,115
Operating Expense:
Aircraft fuel and related taxes	9,397			10,150			9,730
Salaries and related costs	7,720			7,266			6,894
Regional carrier expense	5,669			5,647			5,470
Aircraft maintenance materials and outside repairs	1,852			1,955			1,765
Contracted services	1,665			1,566			1,642
Depreciation and amortization	1,658			1,565			1,523
Passenger commissions and other selling expenses	1,603			1,590			1,682
Landing fees and other rents	1,410			1,336			1,281
Passenger service	762			732			721
Profit sharing	506			372			264
Aircraft rent	209			272			298
Restructuring and other items	402			452			242
Other	1,520			1,592			1,628
Total operating expense	34,373			34,495			33,140
Operating Income	3,400			2,175			1,975
Other Expense:
Interest expense, net	(698		)	(812		)	(901		)
Amortization of debt discount, net	(154		)	(193		)	(193		)
Loss on extinguishment of debt	—			(118		)	(68		)
Miscellaneous, net	(21		)	(27		)	(44		)
Total other expense, net	(873		)	(1,150		)	(1,206		)
Income Before Income Taxes	2,527			1,025			769
Income Tax Benefit (Provision)	8,013			(16		)	85
Net Income	$	10,540		$	1,009		$	854
Basic Earnings Per Share	$	12.41		$	1.20		$	1.02
Diluted Earnings Per Share	$	12.29		$	1.19		$	1.01
Cash Dividends Declared Per Share	$	0.12		$	—		$	—
The accompanying notes are an integral part of these Consolidated Financial Statements.

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DELTA AIR LINES, INC.

Consolidated Statements of Comprehensive Income (Loss)

	Year Ended December 31,
(in millions)	2013		2012			2011
Net Income	$	10,540	$	1,009		$	854
Other comprehensive income (loss):
Net gain (loss) on derivatives	482		211			(167		)
Net change in pension and other benefit liabilities(1)	2,965		(2,022		)	(3,021		)
Total Other Comprehensive Income (Loss)	3,447		(1,811		)	(3,188		)
Comprehensive Income (Loss)	$	13,987	$	(802	)	$	(2,334	)

⁽¹⁾  Pension and other benefit liabilities were significantly impacted by discount rates, see Note 11.

The accompanying notes are an integral part of these Consolidated Financial Statements.

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DELTA AIR LINES, INC.

Consolidated Statements of Cash Flows

	Year Ended December 31,
(in millions)	2013			2012			2011
Cash Flows From Operating Activities:
Net income	$	10,540		$	1,009		$	854
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,658			1,565			1,523
Amortization of debt discount, net	154			193			193
Fuel hedge derivative contracts	(114		)	(209		)	135
Deferred income taxes	(7,991		)	17			(2		)
Pension, postretirement and postemployment expense less than payments	(624		)	(208		)	(308		)
Restructuring and other items	285			184			142
SkyMiles used pursuant to advance purchase under American Express Agreements	(333		)	(333		)	(49		)
Changes in certain assets and liabilities:
Receivables	90			(116		)	(76		)
Restricted cash and cash equivalents	231			(51		)	153
Fuel inventory	(87		)	(451		)	(8		)
Prepaid expenses and other current assets	28			(134		)	(8		)
Air traffic liability	426			216			174
Frequent flyer deferred revenue	(121		)	(115		)	82
Accounts payable and accrued liabilities	213			899			303
Other assets and liabilities	(36		)	(66		)	(373		)
Other, net	185			76			99
Net cash provided by operating activities	4,504			2,476			2,834
Cash Flows From Investing Activities:
Property and equipment additions:
Flight equipment, including advance payments	(2,117		)	(1,196		)	(907		)
Ground property and equipment, including technology	(451		)	(772		)	(347		)
Purchase of Virgin Atlantic shares	(360		)	—			—
Purchase of short-term investments	(959		)	(958		)	(1,078		)
Redemption of short-term investments	1,117			1,019			844
Other, net	14			(55		)	(10		)
Net cash used in investing activities	(2,756		)	(1,962		)	(1,498		)
Cash Flows From Financing Activities:
Payments on long-term debt and capital lease obligations	(1,461		)	(2,864		)	(4,172		)
Cash dividends	(102		)	—			—
Proceeds from long-term obligations	268			1,965			2,395
Repurchase of common stock	(250		)	—			—
Fuel card obligation	147			137			318
Other, net	78			7			(112		)
Net cash used in financing activities	(1,320		)	(755		)	(1,571		)
Net Increase (Decrease) in Cash and Cash Equivalents	428			(241		)	(235		)
Cash and cash equivalents at beginning of period	2,416			2,657			2,892
Cash and cash equivalents at end of period	$	2,844		$	2,416		$	2,657
Supplemental Disclosure of Cash Paid for Interest	$	698		$	834		$	925
Non-Cash Transactions:
Flight equipment under capital leases	$	67		$	28		$	117
Built-to-suit leased facilities	114			214			126
American Express advance purchase of restricted SkyMiles	285			—			—
The accompanying notes are an integral part of these Consolidated Financial Statements.

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DELTA AIR LINES, INC.

Consolidated Statements of Stockholders' Equity (Deficit)

	Common Stock				Additional Paid-In Capital			Retained Earnings (Accumulated Deficit)			Accumulated Other Comprehensive Loss			Treasury Stock
(in millions, except per share data)	Shares		Amount											Shares	Amount			Total
Balance at January 1, 2011	848		$	—	$	13,926		$	(9,252	)	$	(3,578	)	13	$	(199	)	$	897
Net income	—		—		—			854			—			—	—			854
Other comprehensive loss	—		—		—			—			(3,188		)	—	—			(3,188		)
Shares of common stock issued to settle bankruptcy claims under Plans of Reorganization	10		—		—			—			—			—	—			—
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes, $9.63(1) per share)	3		—		72			—			—			3	(32		)	40
Stock options exercised	—		—		1			—			—			—	—			1
Balance at December 31, 2011	861		—		13,999			(8,398		)	(6,766		)	16	(231		)	(1,396		)
Net income	—		—		—			1,009			—			—	—			1,009
Other comprehensive loss	—		—		—			—			(1,811		)	—	—			(1,811		)
Shares of common stock issued and compensation expense associated with equity awards (Treasury shares withheld for payment of taxes, $10.91(1) per share)	5		—		54			—			—			—	(3		)	51
Stock options exercised	2		—		16			—			—			—	—			16
Balance at December 31, 2012	868		—		14,069			(7,389		)	(8,577		)	16	(234		)	(2,131		)
Net income	—		—		—			10,540			—			—	—			10,540
Dividends declared	—		—		—			(102		)	—			—	—			(102		)
Other comprehensive income	—		—		—			—			3,447			—	—			3,447
Shares of common stock issued and compensation expense associated with equity awards and other (Treasury shares withheld for payment of taxes, $14.97(1) per share)	5		—		90			—			—			2	(24		)	66
Stock options exercised	6		—		73			—			—			—	—			73
Stock purchased and retired	(10	)	—		(250		)	—			—			—	—			(250		)
Balance at December 31, 2013	869		$	—	$	13,982		$	3,049		$	(5,130	)	18	$	(258	)	$	11,643

⁽¹⁾  Weighted average price per share

The accompanying notes are an integral part of these Consolidated Financial Statements.

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NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

Delta Air Lines, Inc., a Delaware corporation, provides scheduled air transportation for passengers and cargo throughout the United States (“U.S.”) and around the world. Our Consolidated Financial Statements include the accounts of Delta Air Lines, Inc. and our wholly-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”). We do not consolidate the financial statements of any company in which we have an ownership interest of 50% or less. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity. We reclassified certain prior period amounts, none of which were material, to conform to the current period presentation.

We have marketing alliances with other airlines to enhance our access to domestic and international markets. These arrangements may include codesharing, reciprocal frequent flyer program benefits, shared or reciprocal access to passenger lounges, joint promotions, common use of airport gates and ticket counters, ticket office co-location and other marketing agreements. We have received antitrust immunity for certain marketing arrangements, which enables us to offer a more integrated route network and develop common sales, marketing and discount programs for customers. Some of our marketing arrangements provide for the sharing of revenues and expenses. Revenues and expenses associated with collaborative arrangements are presented on a gross basis in the applicable line items on our Consolidated Statements of Operations.

As described in Note 18, we became the sole owner of Endeavor Air, Inc. ("Endeavor"), formerly Pinnacle Airlines, Inc., on May 1, 2013, pursuant to a confirmed plan of reorganization in the bankruptcy cases of Endeavor and its affiliates. Prior to this acquisition, Endeavor served as a regional carrier under a capacity purchase agreement where we purchased all of Endeavor's seat inventory and marketed it under the Delta tradename. Accordingly, Endeavor's passenger revenue was included in regional carriers passenger revenue in Delta's Consolidated Statements of Operations. All of the expenses Delta incurred under this arrangement were included in contract carrier arrangements expense. Subsequent to this acquisition, we have maintained this presentation and have re-titled contract carrier arrangements expense as regional carrier expense to reflect the inclusion of a wholly-owned regional carrier. This presentation aligns with the regional revenue presentation on the Consolidated Statements of Operations.

Use of Estimates

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.

Recent Accounting Standards

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

Recently issued accounting guidance revises the reporting of items reclassified out of accumulated other comprehensive income and is effective for fiscal years beginning after December 15, 2012. We adopted this guidance in the March 2013 quarter and have presented amounts reclassified out of accumulated other comprehensive income in a note to the financial statements. For more information about accumulated other comprehensive income (loss), see Note 14.

Presentation of Comprehensive Income

In June 2011, the Financial Accounting Standards Board ("FASB") issued "Presentation of Comprehensive Income." The standard revises the presentation and prominence of the items reported in other comprehensive income and is effective retrospectively for fiscal years beginning after December 15, 2011. We adopted this standard in 2012 and have presented comprehensive income in our Consolidated Statements of Comprehensive Income (Loss).

Cash and Cash Equivalents and Short-Term Investments

Short-term, highly liquid investments with maturities of three months or less when purchased are classified as cash and cash equivalents. Investments with maturities of greater than three months, but not in excess of one year, when purchased are classified as short-term investments.

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Accounts Receivable

Accounts receivable primarily consist of amounts due from credit card companies from the sale of passenger airline tickets, customers of our aircraft maintenance and cargo transportation services and other companies for the purchase of mileage credits under our SkyMiles Program. We provide an allowance for uncollectible accounts equal to the estimated losses expected to be incurred based on historical chargebacks, write-offs, bankruptcies and other specific analyses. Bad debt expense was not material in any period presented.

Inventories

Spare Parts. Inventories of expendable parts related to flight equipment, which cannot be economically repaired, reconditioned or reused after removal from the aircraft, are carried at moving average cost and charged to operations as consumed. An allowance for obsolescence is provided over the remaining useful life of the related fleet for spare parts expected to be available at the date aircraft are retired from service. We also provide allowances for parts identified as excess or obsolete to reduce the carrying costs to the lower of cost or net realizable value. These parts are assumed to have an estimated residual value of 5% of the original cost.

Refinery. Refined product, feedstock and blendstock inventories, all of which are finished goods, are carried at the lower of cost or market. Cost is determined using the first-in, first-out method. Costs include the raw material consumed plus direct manufacturing costs (such as labor, utilities and supplies) as incurred and an applicable portion of manufacturing overhead. Ending inventory costs in excess of market value are written down to net recoverable values and charged to operating expense.

Accounting for Refinery Related Buy/Sell Agreements

To the extent that we receive jet fuel for non-jet fuel products (as defined in Note 2) exchanged under buy/sell agreements, we account for these transactions as non-monetary exchanges. We have recorded these non-monetary exchanges at the carrying amount of the non-jet fuel products transferred within aircraft fuel and related taxes on the Consolidated Statements of Operations.

Derivatives

Changes in aircraft fuel prices, interest rates and foreign currency exchange rates impact our results of operations. In an effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as market conditions change. We recognize derivative contracts at fair value on our Consolidated Balance Sheets.

Not Designated as Accounting Hedges. During 2011, we stopped designating substantially all of our new fuel derivative contracts as accounting hedges and discontinued hedge accounting for fuel derivative contracts that had previously been designated as accounting hedges.As a result, we record changes in the fair value of our fuel hedges in aircraft fuel and related taxes.Prior to this change in accounting designation, gains or losses on these contracts were deferred in accumulated other comprehensive income (loss) ("AOCI") until contract settlement.At contract settlement, the gains or losses were then reclassified to aircraft fuel and related taxes.As of December 31, 2013, there are no fuel derivative contracts designated as accounting hedges.

Designated as Cash Flow Hedges. For derivative contracts designated as cash flow hedges (interest rate contracts and foreign currency exchange rates), the effective portion of the gain or loss on the derivative is reported as a component of AOCI and reclassified into earnings in the same period in which the hedged transaction affects earnings. The effective portion of the derivative represents the change in fair value of the hedge that offsets the change in fair value of the hedged item. To the extent the change in the fair value of the hedge does not perfectly offset the change in the fair value of the hedged item, the ineffective portion of the hedge is immediately recognized in other (expense) income.

Designated as Fair Value Hedges. For derivative contracts designated as fair value hedges (interest rate contracts), the gain or loss on the derivative and the offsetting loss or gain on the hedge item attributable to the hedged risk are recognized in current earnings. We include the gain or loss on the hedged item in the same account as the offsetting loss or gain on the related derivative contract, resulting in no impact to our Consolidated Statements of Operations.

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The following table summarizes the risk each type of derivative contract is hedging and the classification of related gains and losses on our Consolidated Statements of Operations:

Derivative Type	Hedged Risk	Classification of Gains and Losses
Fuel hedge contracts	Increases in jet fuel prices	Aircraft fuel and related taxes
Interest rate contracts	Increases in interest rates	Interest expense, net
Foreign currency exchange contracts	Fluctuations in foreign currency exchange rates	Passenger revenue

The following table summarizes the accounting treatment of our derivative contracts:

	Impact of Unrealized Gains and Losses
Accounting Designation	Effective Portion	Ineffective Portion
Not designated as hedges	Change in fair value of hedge is recorded in earnings
Designated as cash flow hedges	Market adjustments are recorded in AOCI	Excess, if any, over effective portion of hedge is recorded in other expense
Designated as fair value hedges	Market adjustments are recorded in long-term debt and capital leases	Excess, if any, over effective portion of hedge is recorded in other expense

We perform, at least quarterly, an assessment of the effectiveness of our derivative contracts designated as hedges, including assessing the possibility of counterparty default. If we determine that a derivative is no longer expected to be highly effective, we discontinue hedge accounting prospectively and recognize subsequent changes in the fair value of the hedge in earnings. We believe our derivative contracts that continue to be designated as hedges, consisting of interest rate and foreign currency exchange contracts, will continue to be highly effective in offsetting changes in cash flow attributable to the hedged risk.

Hedge Margin. In accordance with our fuel, interest rate and foreign currency hedge contracts, we may require counterparties to fund the margin associated with our gain position and/or counterparties may require us to fund the margin associated with our loss position on these contracts. The amount of the margin, if any, is periodically adjusted based on the fair value of the hedge contracts. The margin requirements are intended to mitigate a party's exposure to the risk of contracting party default. We do not offset margin funded to counterparties or margin funded to us by counterparties against fair value amounts recorded for our hedge contracts.

The hedge margin we receive from counterparties is recorded in cash and cash equivalents or restricted cash, cash equivalents and short-term investments, with the offsetting obligation in accounts payable. The hedge margin we provide to counterparties is recorded in accounts receivable. All cash flows associated with purchasing and settling hedge contracts are classified as operating cash flows.

Passenger Tickets

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.

Passenger Taxes and Fees

We are required to charge certain taxes and fees on our passenger tickets, including U.S. federal transportation taxes, federal security charges, airport passenger facility charges and foreign arrival and departure taxes. These taxes and fees are assessments on the customer for which we act as a collection agent. Because we are not entitled to retain these taxes and fees, we do not include such amounts in passenger revenue. We record a liability when the amounts are collected and reduce the liability when payments are made to the applicable government agency or operating carrier.

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Frequent Flyer Program

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 and airlines that participate in the SkyMiles Program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines.

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.

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration we received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

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Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.

Regional Carriers Revenue

During the year ended December 31, 2013, we had contract carrier agreements with third party regional carriers ("Contract Carriers"), in addition to our wholly-owned subsidiary, Endeavor. In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Our wholly-owned subsidiary, Comair, Inc. ("Comair") ceased operations in September 2012 (see Note 16).

Our Contract Carrier agreements are structured as either (1) capacity purchase agreements where we purchase all or a portion of the Contract Carrier's capacity and are responsible for selling the seat inventory we purchase or (2) revenue proration agreements, which are based on a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries. We record revenue related to all of our Contract Carrier agreements as regional carriers passenger revenue. We record expenses related to our Contract Carrier agreements, as regional carrier expense.

Cargo Revenue

Cargo revenue is recognized when we provide the transportation.

Other Revenue

Other revenue is primarily comprised of (1) the marketing component of the sale of mileage credits discussed above, (2) baggage fee revenue, (3) other miscellaneous service revenue, including ticket change fees and (4) revenue from ancillary businesses, such as the aircraft maintenance and repair and staffing services we provide to third parties.

Long-Lived Assets

The following table shows our property and equipment:

		December 31,
(in millions, except for estimated useful life)	Estimated Useful Life	2013			2012
Flight equipment	21-30 years	$	23,373		$	21,481
Ground property and equipment	3-40 years	4,596			4,254
Flight and ground equipment under capital leases	Shorter of lease term or estimated useful life	1,296			1,381
Advance payments for equipment		381			253
Less: accumulated depreciation and amortization(1)		(7,792		)	(6,656		)
Total property and equipment, net		$	21,854		$	20,713

⁽¹⁾ Includes accumulated amortization for flight and ground equipment under capital leases in the amount of $657 million and $653 million at December 31, 2013 and 2012, respectively.

We record property and equipment at cost and depreciate or amortize these assets on a straight-line basis to their estimated residual values over their estimated useful lives. The estimated useful life for leasehold improvements is the shorter of lease term or estimated useful life. Depreciation expense for each of the years ended December 31, 2013, 2012 and 2011 was approximately $1.4 billion. Residual values for owned aircraft, engines, spare parts and simulators are generally 5% to 10% of cost.

We capitalize certain internal and external costs incurred to develop and implement software, and amortize those costs over an estimated useful life of three to seven years. For the years ended December 31, 2013, 2012 and 2011, we recorded $110 million, $76 million and $64 million, respectively, for amortization of capitalized software. The net book value of these assets totaled $383 million and $344 million at December 31, 2013 and 2012, respectively.

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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.

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.

Goodwill and Other Intangible Assets

We apply a fair value-based impairment test to the carrying value of goodwill and indefinite-lived intangible assets on an annual basis (as of October 1) and, if certain events or circumstances indicate that an impairment loss may have been incurred, on an interim basis. In 2012, the FASB issued "Testing Indefinite-Lived Intangible Assets for Impairment." The standard gives companies the option to perform a qualitative assessment to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired rather than calculating the fair value of the indefinite-lived intangible asset. It is effective prospectively for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. We adopted this standard and have applied the provisions to our annual indefinite-lived intangible asset impairment tests in both the December 2013 and 2012 quarters. The adoption of this standard did not have a material impact on our Consolidated Financial Statements. In September 2011, the FASB issued "Testing Goodwill for Impairment." The standard revises the way in which entities test goodwill for impairment. We adopted this standard and applied its provisions to our annual goodwill impairment tests in each of the December 2013, 2012 and 2011 quarters.

We value goodwill and identified intangible assets primarily using market capitalization and income approach valuation techniques. These measurements include the following significant unobservable inputs: (1) our projected revenues, expenses and cash flows, (2) an estimated weighted average cost of capital, (3) assumed discount rates depending on the asset and (4) a tax rate. These assumptions are consistent with those hypothetical market participants would use. Since we are required to make estimates and assumptions when evaluating goodwill and indefinite-lived intangible assets for impairment, the actual amounts may differ materially from these estimates.

Changes in certain events and circumstances could result in impairment. Factors which could cause impairment include, but are not limited to, (1) negative trends in our market capitalization, (2) an increase in fuel prices, (3) declining passenger mile yields, (4) lower passenger demand as a result of a weakened U.S. and global economy, (5) interruption to our operations due to a prolonged employee strike, terrorist attack, or other reasons and (6) changes to the regulatory environment.

Goodwill. Our goodwill balance, which is related to the airline segment, was $9.8 billion at December 31, 2013. In evaluating goodwill for impairment, we estimate the fair value of our reporting unit by considering market capitalization and other factors if it is more likely than not that the fair value of our reporting unit is less than its carrying value. If the reporting unit's fair value exceeds its carrying value, no further testing is required. If, however, the reporting unit's carrying value exceeds its fair value, we then determine the amount of the impairment charge, if any. We recognize an impairment charge if the carrying value of the reporting unit's goodwill exceeds its estimated fair value.

Identifiable Intangible Assets. Our identifiable intangible assets, which are related to the airline segment, had a net carrying amount of $4.7 billion at December 31, 2013. Indefinite-lived assets are not amortized and consist of routes, slots, the Delta tradename and assets related to SkyTeam. Definite-lived intangible assets consist primarily of marketing agreements and are amortized on a straight-line basis or under the undiscounted cash flows method over the estimated economic life of the respective agreements. Costs incurred to renew or extend the term of an intangible asset are expensed as incurred.

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We assess our indefinite-lived assets under a qualitative or quantitative approach. We analyze market factors to determine if events and circumstances have affected the fair value of the indefinite-lived intangible assets. If we determine that it is more likely than not that the asset value may be impaired, we use the quantitative approach to assess the asset's fair value and the amount of the impairment. We perform the quantitative impairment test for indefinite-lived intangible assets by comparing the asset's fair value to its carrying value. Fair value is estimated based on (1) recent market transactions, where available, (2) a combination of limited market transactions and the lease savings method for certain airport slots (which reflects potential lease savings from owning the slots rather than leasing them from another airline at market rates), (3) the royalty method for the Delta tradename (which assumes hypothetical royalties generated from using our tradename) or (4) projected discounted future cash flows. We recognize an impairment charge if the asset's carrying value exceeds its estimated fair value.

Income Taxes

We account for deferred income taxes under the liability method. We recognize deferred tax assets and liabilities based on the tax effects of temporary differences between the financial statement and tax bases of assets and liabilities, as measured by current enacted tax rates. Deferred tax assets and liabilities are recorded net as current and noncurrent deferred income taxes. A valuation allowance is recorded to reduce deferred tax assets when necessary. For additional information about our income taxes, see Note 12.

Manufacturers' Credits

We periodically receive credits in connection with the acquisition of aircraft and engines. These credits are deferred until the aircraft and engines are delivered, and then applied on a pro rata basis as a reduction to the cost of the related equipment.

Maintenance Costs

We record maintenance costs to aircraft maintenance materials and outside repairs. Maintenance costs are expensed as incurred, except for costs incurred under power-by-the-hour contracts, which are expensed based on actual hours flown. Power-by-the-hour contracts transfer certain risk to third party service providers and fix the amount we pay per flight hour to the service provider in exchange for maintenance and repairs under a predefined maintenance program. Modifications that enhance the operating performance or extend the useful lives of airframes or engines are capitalized and amortized over the remaining estimated useful life of the asset or the remaining lease term, whichever is shorter.

Advertising Costs

We expense advertising costs as other selling expenses in the year incurred. Advertising expense was approximately $200 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Commissions

Passenger sales commissions are recognized in operating expense when the related revenue is recognized.

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NOTE 2. OIL REFINERY

Fuel expense is our single largest expense.Prior to our acquisition of an oil refinery, global demand for jet fuel and related products had increased while jet fuel refining capacity had decreased in the U.S. (particularly in the Northeast), resulting in increases in the refining margin reflected in the prices we paid for jet fuel. In June 2012, we purchased an oil refinery as part of our strategy to mitigate the increasing cost of the refining margin we pay. Our wholly-owned subsidiaries, Monroe Energy, LLC and MIPC, LLC (collectively, “Monroe”), acquired the Trainer refinery and related assets located near Philadelphia, Pennsylvania from Phillips 66, which had shut down operations at the refinery. Monroe invested $180 million to acquire the refinery. Monroe received a $30 million grant from the Commonwealth of Pennsylvania. The acquisition includes pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and JFK.

We accounted for the refinery acquisition as a business combination. The refinery, pipelines and terminal assets acquired were recorded at $180 million in property and equipment, net based on their respective fair values on the closing date of the transaction.

Refinery Operations and Strategic Agreements

BP is the primary supplier of crude oil used by the refinery under a three year agreement. The refinery's production consists of jet fuel, as well as gasoline, diesel and other refined products ("non-jet fuel products"). Under a multi-year agreement, we are exchanging a significant portion of the non-jet fuel products with Phillips 66 for jet fuel to be used in our airline operations. In addition, we are selling most of the remaining production of non-jet fuel products to BP under a buy/sell agreement, effectively exchanging those non-jet fuel products for jet fuel. Substantially all of the refinery's production of non-jet fuel products is included in these agreements. The gross fair value of the products exchanged under these agreements during years ended December 31, 2013 and 2012 was $5.4 billion and $1.1 billion, respectively.

Segment Reporting

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources to our segments and in assessing performance. Our chief operating decision maker is considered to be our executive leadership team. Our executive leadership team regularly reviews discrete information for our two operating segments, which are determined by the products and services provided: our airline segment and our refinery segment.

Our airline segment provides scheduled air transportation for passengers and cargo throughout the United States and around the world and other ancillary airline services, including maintenance and repair services for third parties. Our refinery segment provides jet fuel to the airline segment from its own production and through jet fuel obtained through the agreements with Phillips 66 and BP. The costs included in the refinery segment are primarily for the benefit of the airline segment. As a result, our segments are not designed to measure operating income or loss directly related to the products and services included in each segment on a stand-alone basis.

Segment results are prepared based on our internal accounting methods described below, with reconciliations to consolidated amounts in accordance with GAAP.

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(in millions)	Airline		Refinery			Intersegment Sales/Other				Consolidated
Year Ended December 31, 2013
Operating revenue:	$	37,773	$	7,003						$	37,773
Sales to airline segment						$	(1,156	)	(1)
Exchanged products						(5,352		)	(2)
Sales of refined products to third parties						(495		)	(3)
Operating income (loss)	3,516		(116		)					3,400
Interest expense, net	698		—							698
Depreciation and amortization expense	1,641		17							1,658
Total assets, end of period	51,080		1,172							52,252
Capital expenditures	2,516		52							2,568
Year Ended December 31, 2012
Operating revenue:	$	36,670	$	1,347						$	36,670
Sales to airline segment						$	(213	)	(1)
Exchanged products						(1,121		)	(2)
Sales of refined products to third parties						(13		)	(3)
Operating income (loss)	2,238		(63		)					2,175
Interest expense, net	812		—							812
Depreciation and amortization expense	1,561		4							1,565
Total assets, end of period	43,386		1,164							44,550
Capital expenditures	1,637		331							1,968

⁽¹⁾ Represents transfers, valued on a market price basis, from the refinery to the airline segment for use in airline operations. We determine market price by reference to the market index for the primary delivery location for jet fuel from the refinery, which is New York Harbor.

⁽²⁾ Represents value of products exchanged under our buy/sell agreements, as discussed above, determined on a market price basis.

⁽³⁾ Represents sales of refined products to third parties. These sales were at or near cost; accordingly, the margin on these sales is de minimis.

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NOTE 3. FAIR VALUE MEASUREMENTS

Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability.

• Level 1. Observable inputs such as quoted prices in active markets;

• Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on the valuation techniques identified in the tables below. The valuation techniques are as follows:

(a) Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; and

(b) Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).

Assets (Liabilities) Measured at Fair Value on a Recurring Basis⁽¹⁾ 

(in millions)	December 31, 2013			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,487		$	2,487	$	—		$	—	(a)
Short-term investments	959			959		—			—		(a)
Restricted cash equivalents and investments	118			118		—			—		(a)
Long-term investments	109			80		29			—		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	314			16		298			—		(a)(b)
Interest rate contracts	(67		)	—		(67		)	—		(a)(b)
Foreign currency exchange contracts	257			—		257			—		(a)

(in millions)	December 31, 2012			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,176		$	2,176	$	—		$	—	(a)
Short-term investments	958			958		—			—		(a)
Restricted cash equivalents and investments	344			344		—			—		(a)
Long-term investments	208			100		27			81		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	249			27		222			—		(a)(b)
Interest rate contracts	(66		)	—		(66		)	—		(a)(b)
Foreign currency exchange contracts	123			—		123			—		(a)

⁽¹⁾  See Note 11, “Employee Benefit Plans”, for fair value of benefit plan assets.

Cash Equivalents, Short-term Investments and Restricted Cash Equivalents and Investments. Cash equivalents and short-term investments generally consist of money market funds and treasury bills. Restricted cash equivalents and investments primarily support letters of credit that meet certain projected self-insurance obligations and airport commitments and generally consist of money market funds and time deposits. These investmentsare recorded at cost, which approximates fair value. Fair value is based on a market approach using prices and other relevant information generated by market transactions involving identical or comparable assets.

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Long-term Investments. Our long-term investments that are measured at fair value primarily consist of equity investments in Grupo Aeromexico, S.A.B. de C.V., the parent company of Aeromexico, and GOL Linhas Aereas Inteligentes, S.A, the parent company of GOL. Shares of the parent companies of Aeromexico and GOL are traded on public exchanges and we have valued our investments based on quoted market prices. The investments are classified in other noncurrent assets. In 2013, we sold our remaining auction rate securities, which were previously classified as Level 3 instruments.

Hedge Derivatives. Our derivative contracts are generally negotiated with counterparties without going through a public exchange. Accordingly, our fair value assessments give consideration to the risk of counterparty default (as well as our own credit risk).

• Fuel Derivatives. Our fuel hedge portfolio consists of call options; put options; combinations of two or more call options and put options; swap contracts; and futures contracts. The products underlying the hedge contracts include crude oil, diesel fuel and jet fuel as these commodities are highly correlated with the price of jet fuel that we consume. Option contracts are valued under an income approach using option pricing models based on data either readily observable in public markets, derived from public markets or provided by counterparties who regularly trade in public markets. Volatilities used in these valuations ranged from 9% to 25% depending on the maturity dates, underlying commodities and strike prices of the option contracts. Swap contracts are valued under an income approach using a discounted cash flow model based on data either readily observable or derived from public markets. Discount rates used in these valuations vary with the maturity dates of the respective contracts and are based on LIBOR. Futures contracts and options on futures contracts are traded on a public exchange and valued based on quoted market prices.

• Interest Rate Derivatives. Our interest rate derivatives consist primarily of swap contracts and are valued primarily based on data readily observable in public markets.

• Foreign Currency Derivatives. Our foreign currency derivatives consist of Japanese yen and Canadian dollar forward contracts and are valued based on data readily observable in public markets.

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NOTE 4. DERIVATIVES AND RISK MANAGEMENT

Changes in aircraft fuel prices, interest rates and foreign currency exchange rates impact our results of operations. In an effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as market conditions change.

Aircraft Fuel Price Risk

Changes in aircraft fuel prices materially impact our results of operations.We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel.We utilize several different contract and commodity types in this program andfrequently test its economic effectiveness against our financial targets.We rebalance the hedge portfolio from time to time according to market conditions, which may result in locking in gains or losses on hedge contracts prior to their settlement dates.

During 2011, we stopped designating substantially all of our new fuel derivative contracts as accounting hedges and discontinued hedge accounting for fuel derivative contracts that had previously been designated as accounting hedges.As a result, we record changes in the fair value of our fuel hedges in aircraft fuel and related taxes. These changes in fair value include settled gains and losses as well as mark to market adjustments ("MTM adjustments"). MTM adjustments are based on market prices as of the end of the reporting period for contracts settling in future periods. Prior to this change in accounting designation, gains or losses on these contracts were deferred in AOCI until contract settlement.At contract settlement, the gains or losses were then reclassified to aircraft fuel and related taxes.As of December 31, 2013, there are no fuel derivative contracts designated as accounting hedges.

The following table shows the impact of fuel hedge losses (gains) for both designated and undesignated contracts on aircraft fuel and related taxes:

	Year Ended December 31,
(in millions)	2013			2012			2011
Airline segment	$	(444	)	$	81		$	(187	)
Refinery Segment	(49		)	—			—
Effective portion reclassified from AOCI to earnings	—			(15		)	(233		)
(Gains) losses recorded in aircraft fuel and related taxes	$	(493	)	$	66		$	(420	)

Interest Rate Risk

Our exposure to market risk from adverse changes in interest rates is primarily associated with our long-term debt obligations. Market risk associated with our fixed and variable rate long-term debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates.

In an effort to manage our exposure to the risk associated with our variable rate long-term debt, we periodically enter into interest rate swaps. We designate interest rate contracts used to convert the interest rate exposure on a portion of our debt portfolio from a floating rate to a fixed rate as cash flow hedges, while those contracts converting our interest rate exposure from a fixed rate to a floating rate are designated as fair value hedges.

We also have exposure to market risk from adverse changes in interest rates associated with our cash and cash equivalents and benefit plan obligations. Market risk associated with our cash and cash equivalents relates to the potential decline in interest income from a decrease in interest rates. Pension, postretirement, postemployment, and worker's compensation obligation risk relates to the potential increase in our future obligations and expenses from a decrease in interest rates used to discount these obligations.

Foreign Currency Exchange Rate Risk

We are subject to foreign currency exchange rate risk because we have revenue and expense denominated in foreign currencies with our primary exposures being the Japanese yen and Canadian dollar. To manage exchange rate risk, we execute both our international revenue and expense transactions in the same foreign currency to the extent practicable. From time to time, we may also enter into foreign currency option and forward contracts. These foreign currency exchange contracts are designated as cash flow hedges.

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Hedge Position as of December 31, 2013

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	477	U.S. dollars	May 2019	$	—	$	—	$	(17	)	$	(26	)	$	(43	)
Interest rate contracts (fair value hedges)	$	445	U.S. dollars	August 2022	—		—		(2		)	(22		)	(24		)
Foreign currency exchange contracts	120,915		Japanese yen	August 2016	157		100		—			—			257
	438		Canadian dollars
Not designated as hedges
Fuel hedge contracts	4,077		gallons - crude oil, diesel and jet fuel	March 2015	428		29		(127		)	(16		)	314
Total derivative contracts					$	585	$	129	$	(146	)	$	(64	)	$	504

Hedge Position as of December 31, 2012

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	740	U.S. dollars	May 2019	$	—	$	—	$	(22	)	$	(48	)	$	(70	)
Interest rate contracts (fair value hedges)	$	469	U.S. dollars	August 2022	—		6		(2		)	—			4
Foreign currency exchange contracts	119,277		Japanese yen	December 2015	62		63		(1		)	(1		)	123
	430		Canadian dollars
Not designated as hedges
Fuel contracts	1,792		gallons - heating oil, crude oil and jet fuel	December 2013	511		—		(262		)	—			249
Total derivative contracts					$	573	$	69	$	(287	)	$	(49	)	$	306

Offsetting Assets and Liabilities

We have master netting arrangements with all of our counterparties giving us the right of setoff. We have elected not to offset the fair value positions recorded on our Consolidated Balance Sheets. The following table shows the potential net fair value positions had we elected to offset.

(in millions)	Prepaid Expenses and Other		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, Net
December 31, 2013
Net derivative contracts	$	456	$	116	$	(19	)	$	(49	)	$	504
December 31, 2012
Net derivative contracts	$	320	$	69	$	(34	)	$	(49	)	$	306

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Designated Hedge Gains (Losses)

Gains (losses) related to our designated hedge contracts, including those previously designated as accounting hedges, are as follows:

	Effective Portion Reclassified from AOCI to Earnings								Effective Portion Recognized in Other Comprehensive Income (Loss)
	Year Ended December 31,
(in millions)	2013		2012			2011			2013		2012			2011
Fuel hedge contracts	$	—	$	15		$	233		$	—	$	(15	)	$	(166	)
Interest rate contracts	—		(5		)	—			28		14			(8		)
Foreign currency exchange contracts	135		(25		)	(61		)	133		212			7
Total designated	$	135	$	(15	)	$	172		$	161	$	211		$	(167	)

As of December 31, 2013, we have recorded $157 million of net gains on cash flow hedge contracts in AOCI, which are scheduled to settle and be reclassified into earnings within the next 12 months.

Credit Risk

To manage credit risk associated with our aircraft fuel price, interest rate and foreign currency hedging programs, we select counterparties based on their credit ratings and limit our exposure to any one counterparty.

Our hedge contracts contain margin funding requirements. The margin funding requirements may cause us to post margin to counterparties or may cause counterparties to post margin to us as market prices in the underlying hedged items change. Due to the fair value position of our hedge contracts, we received net margin of $65 million and $62 million as of December 31, 2013 and 2012, respectively. Margin received is recorded in accounts payable and margin posted is recorded in prepaid expenses and other.

Our accounts receivable are generated largely from the sale of passenger airline tickets and cargo transportation services. The majority of these sales are processed through major credit card companies, resulting in accounts receivable that may be subject to certain holdbacks by the credit card processors. We also have receivables from the sale of mileage credits under our SkyMiles Program to participating airlines and non-airline businesses such as credit card companies, hotels and car rental agencies. The credit risk associated with our receivables is minimal.

Self-Insurance Risk

We self-insure a portion of our losses from claims related to workers' compensation, environmental issues, property damage, medical insurance for employees and general liability. Losses are accrued based on an estimate of the aggregate liability for claims incurred, using independent actuarial reviews based on standard industry practices and our historical experience. A portion of our projected workers' compensation liability is secured with restricted cash collateral.

NOTE 5. JFK REDEVELOPMENT

We are optimizing our international and trans-continental flight schedule and undertaking a redevelopment project at John F. Kennedy International Airport (“JFK”) to facilitate convenient connections for our passengers and improve coordination with our SkyTeam alliance partners. Prior to beginning the redevelopment project, we primarily operated domestic flights out of Terminal 2 and international flights out of Terminal 3 under leases with the Port Authority of New York and New Jersey (“Port Authority”), which operates JFK. Our redevelopment project, which began in 2010, is on schedule. Terminal 4 is operated by JFK International Air Terminal LLC (“IAT”), a private party, under its lease with the Port Authority. We have constructed nine new international gates in Terminal 4, which opened in 2013. We have relocated our operations from Terminal 3 to our newly constructed facilities at Terminal 4 and have begun the demolition of Terminal 3. During 2013, we announced plans for an additional $180 million expansion project that will add 11 more gates at Terminal 4. With the expansion project, we will relocate our regional jet operations from Terminal 2 to Terminal 4.

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In December 2010, the Port Authority issued approximately $800 million principal amount of special project bonds to fund the substantial majority of the project. Also in December 2010, we entered into a 33 year agreement with IAT (“Sublease”) to sublease space in Terminal 4. IAT is unconditionally obligated under its lease with the Port Authority to pay rentals from the revenues it receives from its operation and management of Terminal 4, including among others our rental payments under the Sublease, in an amount sufficient to pay principal and interest on the bonds. We do not guarantee payment of the bonds. The balance of the project costs will be provided by Port Authority passenger facility charges, Transportation Security Administration funding and our contributions. Our future rental payments will vary based on our share of total passenger and baggage counts at Terminal 4, the number of gates we occupy in Terminal 4, IAT's actual expenses of operating Terminal 4 and other factors.

We are responsible for the management and construction of the project and bear construction risk, including cost overruns. We record an asset for project costs as construction takes place, regardless of funding source. These costs include design fees, labor and construction permits, as well as physical construction costs such as paving, systems, utilities and other costs generally associated with construction projects. The project will also include capitalized interest based on amounts we spend calculated based on our weighted average incremental borrowing rate. The related construction obligation is recorded as a liability and is equal to project costs funded by parties other than us. Future rental payments will reduce the construction obligation and result in the recording of interest expense, calculated using the effective interest method. During the construction period, we are also incurring costs for construction site ground rental expense and remediation and abatement activities, which are expensed as incurred. As of December 31, 2013, we have recorded $675 million as a fixed asset as if we owned the asset and $646 million as the related construction obligation.

We have an equity-method investment in the entity which owns IAT, our sublessor at Terminal 4. The Sublease requires us to pay certain fixed management fees. We determined the investment is a variable interest and assessed whether we have a controlling financial interest in IAT. Our rights under the Sublease with respect to management of Terminal 4 are consistent with rights granted to an anchor tenant under a standard airport lease. Accordingly, we do not consolidate the entity in which we have an investment in our Consolidated Financial Statements.

NOTE 6. INTANGIBLE ASSETS

Indefinite-Lived Intangible Assets

	Carrying Amount at December 31,
(in millions)	2013		2012
International routes and slots	$	2,287	$	2,240
Delta tradename	850		850
SkyTeam related assets	661		661
Domestic slots	622		622
Total	$	4,420	$	4,373

International Routes and Slots. Our remaining international routes and slots primarily relate to the Pacific region. The U.S. and Japan have a bilateral agreement that allows U.S. air carriers unlimited flying to and from Japan under route authorities granted by the U.S. Department of Transportation. Access to the primary Japanese airports (Haneda and Narita airports in Tokyo) is regulated through allocations of slots, which limit the rights of carriers to operate at these airports. The U.S. and Japan have agreed on plans for a limited number of additional slots at these airports. The substantial number of slots we hold at Tokyo Narita Airport, combined with limited-entry rights we hold in other countries, enables us to operate a hub at Tokyo serving the Asia-Pacific region. We currently believe that the current U.S.-Japan bilateral agreement will not have a significant long-term impact on our Pacific routes and slots; therefore, these assets continue to have an indefinite life and are not presently impaired.

Negative changes to our operations could result in an impairment charge or a change from indefinite-lived to definite-lived in the period in which the changes occur or are projected to occur.

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Domestic Slots. In December 2011, we and US Airways exchanged takeoff and landing rights at LaGuardia Airport ("LaGuardia") and Reagan National airports. Under the agreement, (1) we acquired 132 slot pairs at LaGuardia from US Airways and (2) US Airways acquired from us 42 slot pairs at Reagan National and $67 million in cash. Additionally, we divested 16 slot pairs at LaGuardia and eight slot pairs at Reagan National to airlines with limited or no service at those airports and received $90 million in cash proceeds from the sale of the divested slot pairs. The divestiture of these slot pairs resulted in the recognition of a $43 million gain during the December 2011 quarter in restructuring and other items on our Consolidated Statement of Operations. This gain was offset by a $50 million impairment charge recorded on our Moscow slots, for a net $7 million loss recorded during 2011.

The 132 slot pairs at LaGuardia acquired in 2011 were recorded at fair value. We estimated their fair value using a combination of limited market transactions and the lease savings method, which is an income approach. These assets are classified in Level 3 of the fair value hierarchy. The carrying value related to the 42 slot pairs at Reagan National acquired by US Airways was removed from our indefinite-lived intangible assets. In approving the transaction, the Department of Transportation restricted our use of the exchanged slots. We recorded a $78 million deferred gain in December 2011. We recognized this deferred gain in 2012 as the restrictions lapsed.

Definite-Lived Intangible Assets

	December 31, 2013					December 31, 2012
(in millions)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Marketing agreements	$	730	$	(602	)	$	730	$	(545	)
Contracts	193		(83		)	193		(72		)
Other	53		(53		)	53		(53		)
Total	$	976	$	(738	)	$	976	$	(670	)

Amortization expense for each of the years ended December 31, 2013, 2012 and 2011 was approximately $70 million. The following table summarizes the estimated aggregate amortization expense for each of the five succeeding fiscal years:

Years Ending December 31, (in millions)
2014	$	67
2015	67
2016	9
2017	9
2018	8

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NOTE 7. AMERICAN EXPRESS RELATIONSHIP

General. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

During 2013, we amended our agreements with American Express that modified the products and services provided under the agreements. The amendments changed certain mileage award redemptions, access to SkyClubs, among other things. For a description of how these amendments changed our accounting, please see Note 1 under Frequent Flyer Program.

Advance Purchase of Restricted SkyMiles. In 2008, we entered into a multi-year extension of our American Express agreements and received $1.0 billion from American Express for an advance purchase of Restricted SkyMiles (the "prepayment"). The 2008 agreement provided that our obligations with respect to the advance purchase would be satisfied as American Express uses the purchased miles over a specified future period (“SkyMiles Usage Period”), rather than by cash payments from us to American Express. Due to the SkyMiles Usage Period and other restrictions placed upon American Express regarding the timing and use of the SkyMiles, we classified the $1.0 billion prepayment we received as long-term debt.

In 2010, we amended our 2008 American Express agreement. The amendments, among other things, (1) provided that Cardholders could check their first bag for free on every Delta flight through June 2013 ("Baggage Fee Waiver Period"), (2) changed the SkyMiles Usage Period to a three-year period beginning in the December 2011 quarter from a two-year period beginning in December 2010 quarter and (3) gave American Express the option to extend our agreements with them for one year.

During the SkyMiles Usage Period, American Express was drawing down on the prepayment instead of paying cash to Delta for SkyMiles used. As SkyMiles are used by American Express, we recognized the two separate revenue components of these SkyMiles consistent with our accounting policy discussed in Note 1. In December 2013, we and American Express amended this agreement to allow American Express to use these SkyMiles immediately and without restriction. As a result, in the December 2013 quarter, the remaining $285 million of the original $1.0 billion pre-payment was classified as frequent flyer deferred revenue with a portion related to the marketing component recorded within other accrued liabilities.

Annual Sale of Unrestricted SkyMiles. In December 2011, we amended our American Express agreements to sell to American Express $675 million of unrestricted SkyMiles in each of the four years ending 2014. The December 2011 amendment also extends the Baggage Fee Waiver Period. The SkyMiles purchased pursuant to the December 2011 amendment may be used immediately by American Express. The usage of these SkyMiles is not restricted in any way. These annual purchases of SkyMiles are recorded as deferred revenue within current liabilities. The portion of each purchase of SkyMiles related to mileage credits redeemable for future travel are classified within frequent flyer deferred revenue and the portion related to the marketing component are classified within other accrued liabilities. The December 2011 amendment does not change the number of miles that we expect American Express to purchase from us over the four year period; it only impacts the timing of those purchases.

Fuel Card Obligation. In December 2011, we obtained a purchasing card with American Express for the purpose of buying jet fuel and crude oil. The card currently carries a maximum credit limit of $612 million and must be paid monthly. At December 31, 2013 and December 31, 2012, we had $602 million and $455 million, respectively, outstanding on this purchasing card, which was classified as fuel card obligation.

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NOTE 8. LONG-TERM DEBT

The following table summarizes our long-term debt:

	Maturity			Interest Rate(s) Per Annum at			December 31,
(in millions)	Dates			December 31, 2013			2013			2012
Pacific Facilities:
Pacific Term Loan B-1(2)	October 2018			4.00%	variable(1)		$	1,089		$	1,100
Pacific Term Loan B-2(2)	April 2016			3.25%	variable(1)		396			400
Pacific Revolving Facility ($450)	October 2017			undrawn	variable(1)		—			—
2011 Credit Facilities:
Term Loan Facility(2)	April 2017			3.50%	variable(1)		1,341			1,354
Revolving Credit Facility ($1,225)	April 2016			undrawn	variable(1)		—			—
Other Secured Financing Arrangements:
Certificates(2)(3)	2014	to	2023	4.75%	to	9.75%	3,834			4,314
Aircraft financings(2)(3)	2014	to	2025	0.64%	to	6.76%	3,787			3,964
Other financings(2)(4)	2014	to	2031	0.00%	to	6.12%	627			707
Other Revolving Credit Facilities ($250)	2014	to	2015	undrawn	variable(1)		—			—
Total secured debt							11,074			11,839
American Express - Advance Purchase of Restricted SkyMiles(5)							—			619
Other unsecured debt(2)	2014	to	2035	3.01%	to	9.00%	154			175
Total unsecured debt							154			794
Total secured and unsecured debt							11,228			12,633
Unamortized discount, net							(383		)	(527		)
Total debt							10,845			12,106
Less: current maturities							(1,449		)	(1,507		)
Total long-term debt							$	9,396		$	10,599

⁽¹⁾  Interest rate equal to LIBOR (generally subject to a floor) or another index rate, in each case plus a specified margin.

⁽²⁾  Due in installments.

⁽³⁾  Secured by aircraft.

⁽⁴⁾  Primarily includes loans secured by spare parts, spare engines and real estate.

⁽⁵⁾  For additional information about our debt associated with American Express, see Note 7.

Pacific Facilities

In October 2012, we entered into senior secured credit facilities (the "Pacific Facilities") to borrow up to $2.0 billion. The Pacific Facilities consist of two first lien term loan facilities (the "Pacific Term Loans") and a $450 million revolving credit facility (the "Pacific Revolving Facility"). Borrowings under the Pacific Term Loans must be repaid annually in an amount equal to 1% per year of the original principal amount of the respective loans (to be paid in equal quarterly installments). The remaining unamortized principal amounts under the Pacific Term Loans are due on their final maturity dates.

Our obligations under the Pacific Facilities are guaranteed by substantially all of our domestic subsidiaries (the "Guarantors") and secured by a first lien on our Pacific route authorities and certain related assets. For a discussion of related financial covenants, see "Key Financial Covenants" below.

2011 Credit Facilities

In 2011, we entered into senior secured first-lien credit facilities (the “2011 Credit Facilities”) to borrow up to $2.6 billion. The 2011 Credit Facilities consist of a $1.4 billion first-lien term loan facility (the “Term Loan Facility”) and a $1.2 billion first-lien revolving credit facility, up to $500 million of which may be used for the issuance of letters of credit (the “Revolving Credit Facility”).

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Borrowings under the Term Loan Facility must be repaid annually in an amount equal to 1% of the original principal amount (to be paid in equal quarterly installments), with the balance due in 2017. Borrowings under the Revolving Credit Facility are due in 2016.

Our obligations under the 2011 Credit Facilities are guaranteed by the Guarantors. The 2011 Credit Facilities and the related guarantees are secured by liens on certain of our and the Guarantors' assets, including accounts receivable, flight equipment, ground property and equipment, certain aircraft, spare engines and parts, certain non-Pacific international routes, domestic slots, real estate and certain investments (the “Collateral”). For a discussion of related financial covenants, see "Key Financial Covenants" below.

Key Financial Covenants

The credit facilities discussed above include affirmative, negative and financial covenants that restrict our ability to, among other things, make investments, sell or otherwise dispose of collateral if we are not in compliance with the collateral coverage ratio tests described below, pay dividends or repurchase stock. We were in compliance with all covenants in our financing agreements at December 31, 2013.

	Pacific Facilities	2011 Credit Facilities
Minimum Fixed Charge Coverage Ratio (1)	1.20:1	1.20:1
Minimum Unrestricted Liquidity
Unrestricted cash and permitted investments	n/a	$1.0 billion
Unrestricted cash, permitted investments and undrawn revolving credit facilities	$2.0 billion	$2.0 billion
Minimum Collateral Coverage Ratio (2)	1.60:1	1.67:1 (3)

⁽¹⁾  Defined as the ratio of (a) earnings before interest, taxes, depreciation, amortization and aircraft rent and other adjustments to net income to (b) the sum of gross cash interest expense (including the interest portion of our capitalized lease obligations) and cash aircraft rent expense, for the 12-month period ending as of the last day of each fiscal quarter.

⁽²⁾  Defined as the ratio of (a) certain of the collateral that meets specified eligibility standards to (b) the sum of the aggregate outstanding obligations and certain other obligations.

⁽³⁾  Excluding the non-Pacific international routes from the collateral for purposes of the calculation, the required minimum collateral coverage ratio is 0.75:1

Availability Under Revolving Credit Facilities

The table below shows availability under revolving credit facilities, all of which were undrawn, as of December 31, 2013:

(in millions)
Revolving Credit Facility	$	1,225
Pacific Revolving Credit Facility	450
Other Revolving Credit Facilities	250
Total availability under revolving credit facilities	$	1,925

Future Maturities

The following table summarizes scheduled maturities of our debt, including current maturities, at December 31, 2013:

Years Ending December 31, (in millions)	Total Secured and Unsecured Debt		Amortization of Debt Discount, net
2014	$	1,491	$	(80	)
2015	1,089		(73		)
2016	1,472		(67		)
2017	2,190		(58		)
2018	2,159		(47		)
Thereafter	2,827		(58		)
Total	$	11,228	$	(383	)	$	10,845

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Fair Value of Debt

Market risk associated with our fixed and variable rate long-term debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates. In the table below, the aggregate fair value of debt was based primarily on reported market values, recently completed market transactions and estimates based on interest rates, maturities, credit risk and underlying collateral and is classified primarily as Level 2 within the fair value hierarchy.

	December 31,
(in millions)	2013			2012
Total debt at par value	$	11,228		$	12,633
Unamortized discount, net	(383		)	(527		)
Net carrying amount	$	10,845		$	12,106
Fair value	$	11,600		$	13,000

NOTE 9. LEASE OBLIGATIONS

We lease aircraft, airport terminals, maintenance facilities, ticket offices and other property and equipment from third parties. Rental expense for operating leases, which is recorded on a straight-line basis over the life of the lease term, totaled approximately $1.1 billion for each of the years ended December 31, 2013, 2012 and 2011. Amounts due under capital leases are recorded as liabilities, while assets acquired under capital leases are recorded as property and equipment. Amortization of assets recorded under capital leases is included in depreciation and amortization expense. Our airport terminal leases include contingent rents, which vary based upon: facility usage, enplanements, aircraft weight and other factors. Many of our aircraft, facility and equipment leases include rental escalation clauses and/or renewal options. Our leases do not include residual value guarantees and we are not the primary beneficiary in or have other forms of variable interest with the lessor of the leased assets. As a result, we have not consolidated any of the entities that lease to us.

The following tables summarize, as of December 31, 2013, our minimum rental commitments under capital leases and noncancelable operating leases (including certain aircraft flown by Contract Carriers) with initial or remaining terms in excess of one year:

Capital Leases

Years Ending December 31, (in millions)	Total
2014	$	165
2015	158
2016	143
2017	100
2018	54
Thereafter	74
Total minimum lease payments	694
Less: amount of lease payments representing interest	(197		)
Present value of future minimum capital lease payments	497
Less: current obligations under capital leases	(98		)
Long-term capital lease obligations	$	399

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Operating Leases

Years Ending December 31, (in millions)	Delta Lease Payments(1)		Contract Carrier Aircraft Lease Payments(2)		Total
2014	$	1,079	$	350	$	1,429
2015	1,028		328		1,356
2016	900		286		1,186
2017	785		241		1,026
2018	635		196		831
Thereafter	5,442		224		5,666
Total minimum lease payments	$	9,869	$	1,625	$	11,494

⁽¹⁾  Includes payments accounted for as construction obligations. See Note 5.

⁽²⁾  Represents the minimum lease obligations under our Contract Carrier agreements with Chautauqua Airlines, Inc. (“Chautauqua”), Compass Airlines, Inc., ExpressJet Airlines, Inc., GoJet Airlines, LLC, Shuttle America Corporation (“Shuttle America”) and SkyWest Airlines, Inc.

NOTE 10. COMMITMENTS AND CONTINGENCIES

Aircraft Purchase and Lease Commitments

At December 31, 2013, future aircraft purchase commitments total approximately $9.1 billion and include 88 B-737-900ER, 30 A321-200, 28 CRJ-900, 18 B-787-8 aircraft and 10 A330-300 aircraft. We have obtained long-term financing commitments for a substantial portion of the purchase price of all of these aircraft, except for the 18 B-787-8 aircraft. Our purchase commitment for the 18 B-787-8 aircraft provides for certain aircraft substitution rights.

Years Ending December 31, (in millions)	Total
2014	$	1,585
2015	1,215
2016	1,700
2017	1,495
2018	450
Thereafter	2,700
Total	$	9,145

We also have agreements with Southwest Airlines and The Boeing Company to lease 88 B-717-200 aircraft. We took delivery of 13 B-717-200 aircraft during 2013 and deliveries will continue through 2015.

Contract Carrier Agreements

We have contract carrier agreements with regional carriers with agreements expiring from 2016 to 2022.

Capacity Purchase Agreements. Most of our Contract Carriers operate for us under capacity purchase agreements. Under these agreements, the Contract Carriers operate some or all of their aircraft using our flight designator codes, and we control the scheduling, pricing, reservations, ticketing and seat inventories of those aircraft and retain the revenues associated with those flights. We pay those airlines an amount, as defined in the applicable agreement, which is based on a determination of their cost of operating those flights and other factors intended to approximate market rates for those services.

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The following table shows our minimum fixed obligations under our existing capacity purchase agreements. The obligations set forth in the table contemplate minimum levels of flying by the Contract Carriers under the respective agreements and also reflect assumptions regarding certain costs associated with the minimum levels of flying such as the cost of fuel, labor, maintenance, insurance, catering, property tax and landing fees. Accordingly, our actual payments under these agreements could differ materially from the minimum fixed obligations set forth in the table below.

Years Ending December 31, (in millions)	Amount(1)
2014	$	2,110
2015	2,040
2016	1,780
2017	1,560
2018	1,320
Thereafter	1,930
Total	$	10,740

⁽¹⁾  These amounts exclude Contract Carrier payments accounted for as operating leases of aircraft, which are described in Note 9. The contingencies described below under “Contingencies Related to Termination of Contract Carrier Agreements” are also excluded from this table.

Revenue Proration Agreement. As of December 31, 2013, a portion of our Contract Carrier agreement with SkyWest Airlines, Inc. is structured as a revenue proration agreement. This revenue proration agreement establishes a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries.

Contingencies Related to Termination of Contract Carrier Agreements

We may terminate without cause our agreement with Chautauqua at any time and our agreement with Shuttle America at any time after January 2016 by providing certain advance notice. If we terminate either the Chautauqua or Shuttle America agreements without cause, Chautauqua or Shuttle America, respectively, has the right to (1) assign to us leased aircraft that the airline operates for us, provided we are able to continue the leases on the same terms the airline had prior to the assignment and (2) require us to purchase or lease any aircraft the airline owns and operates for us at the time of the termination. If we are required to purchase aircraft owned by Chautauqua or Shuttle America, the purchase price would be equal to the amount necessary to (1) reimburse Chautauqua or Shuttle America for the equity it provided to purchase the aircraft and (2) repay in full any debt outstanding at such time that is not being assumed in connection with such purchase. If we are required to lease aircraft owned by Chautauqua or Shuttle America, 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. Because these contingencies depend on our termination of the agreements without cause prior to their expiration dates, no obligation exists unless such termination occurs.

We estimate that the total fair values, determined as of December 31, 2013, of the aircraft Chautauqua or Shuttle America could assign to us or require that we purchase if we terminate without cause our contract carrier agreements with those airlines (the "Put Right") are approximately $119 million and $294 million, respectively. The actual amount we may be required to pay in these circumstances may be materially different from these estimates. If the Put Right is exercised, we must also pay the exercising carrier 10% interest (compounded monthly) on the equity the carrier provided when it purchased the put aircraft. These equity amounts for Chautauqua and Shuttle America total $25 million and $52 million, respectively.

Legal Contingencies

We are involved in various legal proceedings related to employment practices, environmental issues, antitrust matters and other matters concerning our business. We record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount of loss can be reasonably estimated. We cannot reasonably estimate the potential loss for certain legal proceedings because, for example, the litigation is in its early stages or the plaintiff does not specify the damages being sought. Although the outcome of the legal proceedings in which we are involved cannot be predicted with certainty, management believes that the resolution of these matters will not have a material adverse effect on our Consolidated Financial Statements.

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Credit Card Processing Agreements

Our VISA/MasterCard and American Express credit card processing agreements provide that no cash reserve ("Reserve") is required, and no withholding of payment related to receivables collected will occur, except in certain circumstances, including when we do not maintain a required level of liquidity as outlined in the merchant processing agreements. In circumstances in which the credit card processor can establish a Reserve or withhold payments, the amount of the Reserve or payments that may be withheld would be equal to the potential liability of the credit card processor for tickets purchased with VISA/MasterCard or American Express credit cards, as applicable, that had not yet been used for travel. There was no Reserve or amounts withheld as of December 31, 2013 and 2012.

Other Contingencies

General Indemnifications

We are the lessee under many commercial real estate leases. It is common in these transactions for us, as the lessee, to agree to indemnify the lessor and the lessor's related parties for tort, environmental and other liabilities that arise out of or relate to our use or occupancy of the leased premises. This type of indemnity would typically make us responsible to indemnified parties for liabilities arising out of the conduct of, among others, contractors, licensees and invitees at, or in connection with, the use or occupancy of the leased premises. This indemnity often extends to related liabilities arising from the negligence of the indemnified parties, but usually excludes any liabilities caused by either their sole or gross negligence or their willful misconduct.

Our aircraft and other equipment lease and financing agreements typically contain provisions requiring us, as the lessee or obligor, to indemnify the other parties to those agreements, including certain of those parties' related persons, against virtually any liabilities that might arise from the use or operation of the aircraft or such other equipment.

We believe that our insurance would cover most of our exposure to liabilities and related indemnities associated with the commercial real estate leases and aircraft and other equipment lease and financing agreements described above. While our insurance does not typically cover environmental liabilities, we have certain insurance policies in place as required by applicable environmental laws.

Certain of our aircraft and other financing transactions include provisions that require us to make payments to preserve an expected economic return to the lenders if that economic return is diminished due to certain changes in law or regulations. In certain of these financing transactions, we also bear the risk of certain changes in tax laws that would subject payments to non-U.S. lenders to withholding taxes.

We cannot reasonably estimate our potential future payments under the indemnities and related provisions described above because we cannot predict (1) when and under what circumstances these provisions may be triggered and (2) the amount that would be payable if the provisions were triggered because the amounts would be based on facts and circumstances existing at such time.

Employees Under Collective Bargaining Agreements

At December 31, 2013, we had approximately 78,000 full-time equivalent employees, approximately 18% of whom were represented by unions. The following table shows our domestic airline employee groups that are represented by unions.

Employee Group	Approximate Number of Active Employees Represented	Union	Date on which Collective Bargaining Agreement Becomes Amendable
Delta Pilots	10,700	ALPA	December 31, 2015
Delta Flight Superintendents (Dispatchers)(1)	370	PAFCA	December 31, 2013
Endeavor Air Pilots	1,820	ALPA	January 1, 2020
Endeavor Air Flight Attendants	990	AFA	December 31, 2018
Endeavor Air Dispatchers	60	DISTWU	December 31, 2018

⁽¹⁾ We are in discussions with representatives of the Flight Superintendents.

In addition, 210 refinery employees of Monroe are represented by the United Steel Workers under an agreement that expires on February 26, 2015.

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Labor unions periodically engage in organizing efforts to represent various groups of our employees, including at our operating subsidiaries, that are not represented for collective bargaining purposes.

War-Risk Insurance Contingency

As a result of the terrorist attacks on September 11, 2001, aviation insurers significantly (1) reduced the maximum amount of insurance coverage available to commercial air carriers for liability to persons (other than employees or passengers) for claims from acts of terrorism, war or similar events and (2) increased the premiums for such coverage. Since September 24, 2001, the U.S. government has been providing U.S. airlines with war-risk insurance to cover losses, including those resulting from terrorism, to passengers, third parties (ground damage) and the aircraft hull. The U.S. Secretary of Transportation has extended coverage through September 30, 2014, and we expect the coverage to be further extended. The withdrawal of government support of airline war-risk insurance would require us to obtain war-risk insurance coverage commercially. Such commercial insurance could have substantially less desirable coverage than currently provided by the U.S. government, may not be adequate to protect our risk of loss from future acts of terrorism or, may result in a material increase to our operating expense.

Other

We have certain contracts for goods and services that require us to pay a penalty, acquire inventory specific to us or purchase contract specific equipment, as defined by each respective contract, if we terminate the contract without cause prior to its expiration date. Because these obligations are contingent on our termination of the contract without cause prior to its expiration date, no obligation would exist unless such a termination occurs.

NOTE 11. EMPLOYEE BENEFIT PLANS

We sponsor defined benefit and defined contribution pension plans, healthcare plans and disability and survivorship plans for eligible employees and retirees and their eligible family members.

Defined Benefit Pension Plans. We sponsor defined benefit pension plans for eligible employees and retirees. These plans are closed to new entrants and frozen for future benefit accruals.The Pension Protection Act of 2006 allows commercial airlines to elect alternative funding rules (“Alternative Funding Rules”) for defined benefit plans that are frozen. Delta elected the Alternative Funding Rules under which the unfunded liability for a frozen defined benefit plan may be amortized over a fixed 17-year period and is calculated using an8.85%discount rate. We estimate the funding under these plans will total approximately $925 million in 2014, which includes $250 million of contributions above the minimum funding requirements.

Defined Contribution Pension Plans. Delta sponsors several defined contribution plans. These plans generally cover different employee groups and employer contributions vary by plan. The cost associated with our defined contribution pension plans is shown in the tables below.

Postretirement Healthcare Plans. We sponsor healthcare plans that provide benefits to eligible retirees and their dependents who are under age 65. We have generally eliminated company-paid post age 65 healthcare coverage, except for (1) subsidies available to a limited group of retirees and their dependents and (2) a group of retirees who retired prior to 1987. Benefits under these plans are funded from current assets and employee contributions. During 2012, we remeasured our postretirement healthcare obligation to account for changes to retiree medical benefits resulting from the final integration of wages and benefits following our merger with Northwest Airlines and the voluntary workforce reduction programs offered to eligible employees. As a result, we recorded $116 million of special termination benefits in restructuring and other items (see Note 16).

Postemployment Plans. We provide certain other welfare benefits to eligible former or inactive employees after employment but before retirement, primarily as part of the disability and survivorship plans. Substantially all employees are eligible for benefits under these plans in the event of death and/or disability.

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Benefit Obligations, Fair Value of Plan Assets and Funded Status

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Benefit obligation at beginning of period	$	21,489		$	19,293		$	3,582		$	3,570
Service cost	—			—			49			56
Interest cost	861			930			143			164
Actuarial (gain) loss	(2,212		)	2,334			(301		)	147
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(313		)	(310		)
Participant contributions	—			—			45			58
Plan amendments	—			—			—			(219		)
Special termination benefits	—			—			—			116
Settlements	—			(11		)	—			—
Benefit obligation at end of period(1)	$	19,060		$	21,489		$	3,205		$	3,582
Fair value of plan assets at beginning of period	$	8,196		$	7,789		$	1,004		$	972
Actual gain on plan assets	905			778			129			134
Employer contributions	914			697			191			222
Participant contributions	—			—			45			58
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(326		)	(382		)
Settlements	—			(11		)	—			—
Fair value of plan assets at end of period	$	8,937		$	8,196		$	1,043		$	1,004
Funded status at end of period	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)

⁽¹⁾  At each period-end presented, our accumulated benefit obligations for our pension plans are equal to the benefit obligations shown above.

Balance Sheet Position

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Current liabilities	$	(22	)	$	(24	)	$	(139	)	$	(132	)
Noncurrent liabilities	(10,101		)	(13,269		)	(2,023		)	(2,446		)
Total liabilities	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)
Net actuarial loss	$	(5,349	)	$	(7,958	)	$	(103	)	$	(473	)
Prior service credit	—			—			161			187
Total accumulated other comprehensive income (loss), pre-tax	$	(5,349	)	$	(7,958	)	$	58		$	(286	)

During 2013, the net actuarial loss recorded in AOCI related to our benefit plans decreased to $5.3 billion from $8.2 billion. This decrease is primarily due to the increase in discount rates from 2012 to 2013.

Estimated amounts that will be amortized from AOCI into net periodic benefit cost in 2014 are a net actuarial loss of $111 million. Amounts are generally amortized from AOCI over the expected future lifetime of plan participants.

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Net Periodic Cost

	Pension Benefits									Other Postretirement and Postemployment Benefits
	Year Ended December 31,									Year Ended December 31,
(in millions)	2013			2012			2011			2013			2012			2011
Service cost	$	—		$	—		$	—		$	49		$	56		$	52
Interest cost	861			930			969			143			164			180
Expected return on plan assets	(734		)	(705		)	(724		)	(84		)	(77		)	(90		)
Amortization of prior service credit	—			—			—			(26		)	(21		)	(3		)
Recognized net actuarial loss (gain)	221			143			55			25			23			(11		)
Settlements	6			—			—			—			—			—
Special termination benefits	—			—			—			—			116			—
Net periodic cost	$	354		$	368		$	300		$	107		$	261		$	128
Defined contribution plan costs	490			426			377			—			—			—
Total cost	$	844		$	794		$	677		$	107		$	261		$	128

Assumptions

We used the following actuarial assumptions to determine our benefit obligations and our net periodic cost for the periods presented:

	December 31,
Benefit Obligations(1)(2)	2013		2012
Weighted average discount rate	5.01	%	4.11	%

	Year Ended December 31,
Net Periodic Cost(2)	2013		2012		2011
Weighted average discount rate - pension benefit	4.10	%	4.95	%	5.70	%
Weighted average discount rate - other postretirement benefit(4)	4.00	%	4.63	%	5.55	%
Weighted average discount rate - other postemployment benefit	4.13	%	4.88	%	5.63	%
Weighted average expected long-term rate of return on plan assets	8.94	%	8.94	%	8.93	%
Assumed healthcare cost trend rate(3)	7.00	%	7.00	%	7.00	%

⁽¹⁾  Our 2013 and 2012 benefit obligations are measured using a mortality table projected to 2017 and 2016, respectively.

⁽²⁾  Future compensation levels do not impact our frozen defined benefit pension plans or other postretirement plans and impact only a small portion of our other postemployment liability.

⁽³⁾  Assumed healthcare cost trend rate at December 31, 2013 is assumed to decline gradually to 5.00% by 2022 and remain level thereafter.

⁽⁴⁾  Our assumptions reflect various remeasurements of certain portions of our obligations and represent the weighted average of the assumptions used for each measurement date.

Healthcare Cost Trend Rate. Assumed healthcare cost trend rates have an effect on the amounts reported for the other postretirement benefit plans. A 1% change in the healthcare cost trend rate used in measuring the accumulated plan benefit obligation for these plans at December 31, 2013, would have the following effects:

(in millions)	1% Increase		1% Decrease
Increase (decrease) in total service and interest cost	$	1	$	(1	)
Increase (decrease) in the accumulated plan benefit obligation	15		(25		)

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Expected Long-Term Rate of Return. Our expected long-term rate of return on plan assets is based primarily on plan-specific investment studies using historical market return and volatility data.Modest excess return expectations versus some public market indices are incorporated into the return projections based on the actively managed structure of the investment programs and their records of achieving such returns historically. We also expect to receive a premium for investing in less liquid private markets.We review our rate of return on plan asset assumptions annually.Our annual investment performance for one particular year does not, by itself, significantly influence our evaluation.Our actual historical annualized three and five year rate of return on plan assets for our defined benefit pension plans was approximately 9% and 12%, respectively, as of December 31, 2013. The investment strategy for our defined benefit pension plan assets is to use a diversified mix of global public and private equity portfolios, public and private fixed income portfolios and private real estate and natural resource investments to earn a long-term investment return that meets or exceeds our annualized return target.Our expected long-term rate of return on assets for net periodic pension benefit cost for the year endedDecember 31, 2013 was 9%.

Benefit Payments

Benefit payments in the table below are based on the same assumptions used to measure the related benefit obligations. Actual benefit payments may vary significantly from these estimates. Benefits earned under our pension plans and certain postemployment benefit plans are expected to be paid from funded benefit plan trusts, while our other postretirement benefits are funded from current assets.

The following table summarizes, the benefit payments that are scheduled to be paid in the years ending December 31:

(in millions)	Pension Benefits		Other Postretirement and Postemployment Benefits
2014	$	1,128	$	272
2015	1,136		272
2016	1,154		273
2017	1,175		270
2018	1,194		264
2019-2023	6,226		1,311

Plan Assets

We have adopted and implemented investment policies for our defined benefit pension plans and disability and survivorship plan for pilots that incorporate strategic asset allocation mixes intended to best meet the plans' long-term obligations. This asset allocation policy mix utilizes a diversified mix of investments and is reviewed periodically. The weighted average target and actual asset allocations for the plans are as follows:

	December 31, 2013
	Target		Actual
Diversified fixed income	23	%	12	%
Domestic equity securities	21		14
Non-U.S. developed equity securities	20		23
Alternative investments	19		21
Non-U.S. emerging equity securities	6		6
Hedge funds	5		6
Cash equivalents	5		14
High yield fixed income	1		4
Total	100	%	100	%

The overall asset mix of the portfolios is more heavily weighted in equity-like investments. Active management strategies are utilized where feasible in an effort to realize investment returns in excess of market indices. As part of these strategies, we are required to hold increased amounts of cash collateral associated with certain derivative investments. We use derivatives instead of holding the underlying securities to mitigate certain risks and facilitate asset allocation.

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Benefit Plan Assets Measured at Fair Value on a Recurring Basis

Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability.

• Level 1. Observable inputs such as quoted prices in active markets;

• Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on the valuation techniques identified in the tables below. The valuation techniques are as follows:

(a) Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; and

(b) Income approach. Techniques to convert future amounts to a single current value based on market expectations (including present value techniques, option-pricing and excess earnings models).

Benefit Plan Assets. Benefit plan assets relate to our defined benefit pension plans and certain of our postemployment benefit plans that are funded through trusts. The following table shows our benefit plan assets by asset class. These investments are presented net of the related benefit obligation in pension, postretirement and related benefits on the Consolidated Balance Sheets.

	December 31, 2013									December 31, 2012
(in millions)	Total		Level 1		Level 2		Level 3		Valuation Technique	Total		Level 1		Level 2		Level 3		Valuation Technique
Common stock
U.S.	$	558	$	558	$	—	$	—	(a)	$	575	$	575	$	—	$	—	(a)
Non-U.S.	1,269		1,216		53		—		(a)	923		886		37		—		(a)
Mutual funds
U.S.	3		—		3		—		(a)	69		—		69		—		(a)
Non-U.S.	43		—		43		—		(a)	129		—		129		—		(a)
Non-U.S. emerging markets	327		—		327		—		(a)	466		—		466		—		(a)
Diversified fixed income	218		—		218		—		(a)	390		—		390		—		(a)
High yield	348		—		348		—		(a)(b)	153		—		153		—		(a)(b)
Commingled funds
U.S.	864		—		864		—		(a)	824		—		824		—		(a)
Non-U.S.	782		—		782		—		(a)	688		—		688		—		(a)
Non-U.S. emerging markets	319		—		319		—		(a)	178		—		178		—		(a)
Diversified fixed income	680		—		680		—		(a)	763		—		763		—		(a)
High yield	98		—		39		59		(a)	38		—		25		13		(a)
Alternative investments
Private equity	1,366		—		—		1,366		(a)(b)	1,466		—		—		1,466		(a)(b)
Real estate and natural resources	688		—		—		688		(a)(b)	613		—		—		613		(a)(b)
Hedge Funds	552		—		—		552		(a)(b)	484		—		—		484		(a)(b)
Fixed income	155		—		155		—		(a)(b)	573		—		573		—		(a)(b)
Cash equivalents and other	1,610		28		1,582		—		(a)	818		77		741		—		(a)
Total benefit plan assets	$	9,880	$	1,802	$	5,413	$	2,665		$	9,150	$	1,538	$	5,036	$	2,576

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Common Stock. Common stock is valued at the closing price reported on the active market on which the individual securities are traded.

Mutual and Commingled Funds. These funds are valued using the net asset value divided by the number of shares outstanding, which is based on quoted market prices of the underlying assets owned by the fund.

Alternative Investments. The valuation of alternative investments requires significant judgment due to the absence of quoted market prices as well as the inherent lack of liquidity and the long-term nature of these assets. Accordingly, these assets are generally classified in Level 3. Alternative investments include private equity, real estate, energy and timberland. Investments are valued based on valuation models where one or more of the significant inputs into the model cannot be observed and which require the development of assumptions. We also assess the potential for adjustment to the fair value of these investments due to the lag in the availability of data. In these cases, we solicit preliminary valuation updates at year-end from the investment managers and use that information and corroborating data from public markets to determine any needed adjustments to estimate fair value.

Fixed Income. Investments include corporate bonds, government bonds, collateralized mortgage obligations and other asset backed securities. These investments are generally valued at the bid price or the average of the bid and ask price. Prices are based on pricing models, quoted prices of securities with similar characteristics, or broker quotes.

Hedge Funds. Our hedge fund investments are primarily made through shares of limited partnerships or similar structures for which a liquid secondary market does not exist. Hedge funds are considered Level 3 assets. Hedge funds are valued monthly by a third-party administrator that has been appointed by the fund's general partner.

Foreign Currency Derivatives. Our foreign currency derivatives consist of various forward contracts and are valued based on data readily observable in public markets.

Cash Equivalents and Other. These investments primarily consist of short term investment funds which are valued using the net asset value. Cash is not included in the table above.

Changes in Level 3. The following table shows the changes in our benefit plan assets classified in Level 3:

(in millions)	Private Equity			Real Estate			Hedge Funds			Commingled Funds		Total
Balance at January 1, 2012	$	1,517		$	527		$	432		$	11	$	2,487
Actual return on plan assets:
Related to assets still held at the reporting date	—			(11		)	50			2		41
Related to assets sold during the period	44			8			(9		)	—		43
Purchases, sales and settlements, net	(95		)	89			(2		)	—		(8		)
Transfers from Level 3	—			—			13			—		13
Balance at December 31, 2012	1,466			613			484			13		2,576
Actual return on plan assets:
Related to assets still held at the reporting date	98			61			49			2		210
Related to assets sold during the period	64			19			—			—		83
Purchases, sales and settlements, net	(262		)	(5		)	19			44		(204		)
Transfers to Level 3	—			—			—			—		—
Balance at December 31, 2013	$	1,366		$	688		$	552		$	59	$	2,665

Other

We also sponsor defined benefit pension plans for eligible employees in certain foreign countries. These plans did not have a material impact on our Consolidated Financial Statements in any period presented.

Profit Sharing Program

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Our broad based employee profit sharing program provides that, for each year in which we have an annual pre-tax profit, as defined, we will pay a specified portion of that profit to employees. For the years ended December 31, 2013, 2012 and 2011, we accrued $506 million, $372 million and $264 million under the profit sharing program, respectively.

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NOTE 12. INCOME TAXES

Income Tax Benefit (Provision)

Our income tax benefit (provision) consisted of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Current tax benefit (provision):
Federal	$	24		$	—		$	91
State and local	(3		)	15			(6		)
International	1			(14		)	(2		)
Deferred tax provision:
Federal	7,197			(4		)	2
State and local	794			(13		)	—
Income tax benefit (provision)	$	8,013		$	(16	)	$	85

The following table presents the principal reasons for the difference between the effective tax rate and the U.S. federal statutory income tax rate:

	Year Ended December 31,
	2013		2012		2011
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State taxes	3.0		3.3		3.4
Other	(0.4	)	4.0		(3.7	)
	37.6		42.3		34.7
Decrease in valuation allowance	(367.5	)	(40.8	)	(45.7	)
Income tax allocation	12.7		—		—
Effective income tax rate	(317.2	)%	1.5	%	(11.0	)%

Deferred Taxes

Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting and income tax purposes. The following table shows significant components of our deferred tax assets and liabilities:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Net operating loss carryforwards	$	6,024		$	6,414
Pension, postretirement and other benefits	4,982			6,415
AMT credit carryforward	378			402
Deferred revenue	1,965			2,133
Other	698			881
Valuation allowance	(177		)	(10,963		)
Total deferred tax assets	$	13,870		$	5,282
Deferred tax liabilities:
Depreciation	$	4,799		$	4,851
Intangible assets	1,704			1,730
Other	639			285
Total deferred tax liabilities	$	7,142		$	6,866

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The following table shows the current and noncurrent deferred tax assets (liabilities):

	December 31,
(in millions)	2013		2012
Current deferred tax assets, net	$	1,736	$	463
Noncurrent deferred tax assets (liabilities), net	4,992		(2,047		)
Total deferred tax assets (liabilities), net	$	6,728	$	(1,584	)

The current and noncurrent components of our deferred tax balances are generally based on the balance sheet classification of the asset or liability creating the temporary difference. If the deferred tax asset or liability is not based on a component of our balance sheet, such as our net operating loss (“NOL”) carryforwards, the classification is presented based on the expected reversal date of the temporary difference. Our valuation allowance has been allocated between current or noncurrent based on the percentages of current and noncurrent deferred tax assets to total deferred tax assets.

At December 31, 2013, we had (1) $378 million of federal alternative minimum tax (“AMT”) credit carryforwards, which do not expire and (2) $15.3 billion of federal pretax NOL carryforwards, which will not begin to expire until 2023.

Valuation Allowance

We periodically assess whether it is more likely than not that we will generate sufficient taxable income to realize our deferred income tax assets. We establish valuation allowances if it is not likely we will realize our deferred income tax assets. In making this determination, we consider all available positive and negative evidence and make certain assumptions. We consider, among other things, our future projections of sustained profitability, deferred income tax liabilities, the overall business environment, our historical financial results, our industry's historically cyclical financial results and potential current and future tax planning strategies. We recorded a full valuation allowance in 2004 due to our cumulative loss position at that time, compounded by the negative industry-wide business trends and outlook. At December 31, 2012, we had an $11.0 billion valuation allowance established against our deferred income tax assets, which represented a full valuation allowance against our net deferred income tax assets.

For 2012, we recorded a pre-tax profit of $1.0 billion and during 2012 we moved from a three-year cumulative loss position to a cumulative income position for the first time since we established the full valuation allowance. However given the industry's recent history of significant losses, we concluded as of December 31, 2012 that another year of significant profitability was needed to support a release of valuation allowance.

During 2013, we continued our trend of sustained profitability, recording a pre-tax profit of $2.5 billion for the year. During the December 2013 quarter, after considering all relevant factors, we concluded that our deferred income tax assets are more likely than not to be realized. In evaluating the likelihood of utilizing our net deferred net assets, the significant relevant factors that we considered are: (1) our recent history of profitability; (2) growth in the U.S. and global economies; (3) forecast of airline revenue trends; (4) estimate of future fuel prices; and (5) future impact of taxable temporary differences. Accordingly, at December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets, resulting in an $8.3 billion benefit in our provision for income taxes. We have retained a valuation allowance of $107 million against capital loss carryforwards, as well as $70 million against certain state and local operating loss and credit carryforwards, due to limited carryforward periods. In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.

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The following table shows the balance of our valuation allowance and the associated activity:

(in millions)	2013			2012			2011
Valuation allowance at beginning of period	$	10,963		$	10,705		$	9,632
Income tax provision	(975		)	(432		)	(351		)
Other comprehensive income tax benefit	(1,186		)	690			1,241
Release(1)	(8,310		)	—			—
Other	(315		)	—			183
Valuation allowance at end of period(2)	$	177		$	10,963		$	10,705

⁽¹⁾  In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.

⁽²⁾  At December 31, 2013, 2012 and 2011, $13 million, $3.1 billion and $2.5 billion of deferred income tax expense was recorded in AOCI on our Consolidated Balance Sheets, respectively.

Income Tax Allocation

We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to continuing operations (the "Income Tax Allocation"). At the end of 2013, we released our tax valuation allowance, as discussed above. GAAP requires that the release of a valuation allowance be recognized in current earnings, even when a portion of the related deferred tax asset originated through amounts recognized in AOCI. As a result, $1.9 billion of income tax expense remains in AOCI, primarily related to pension obligations, and will not be recognized in net income until the pension obligations are fully extinguished, which will not occur for approximately 25 years.

During 2009, as a result of the Income Tax Allocation, we recorded a non-cash deferred income tax expense of $321 million on other comprehensive income as a result of hedge gains on fuel derivatives and an offsetting non-cash income tax benefit of $321 million. This deferred income tax expense remained in AOCI until all amounts in AOCI that related to fuel derivatives which were designated as accounting hedges were recognized in the Consolidated Statement of Operations. All of the remaining amounts held in AOCI for fuel derivatives previously designated as hedges were reclassified to earnings during 2013. As a result, an income tax expense of $321 million was recognized in 2013 upon the settlement of the fuel derivative contracts designated as accounting hedges.

Uncertain Tax Positions

The amount of and changes to our uncertain tax positions were not material in any of the years presented. The amount of unrecognized tax benefits at the end of 2013, 2012 and 2011 was $37 million, $44 million and $22 million, respectively. We accrue interest and penalties related to unrecognized tax benefits in interest expense and operating expense, respectively. Interest and penalties are not material in any period presented.

We are currently under audit by the IRS for the 2013 and 2012 tax years.

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NOTE 13. EQUITY AND EQUITY COMPENSATION

Equity

We are authorized to issue 2.0 billion shares of capital stock, of which up to 1.5 billion may be shares of common stock, par value $0.0001 per share and up to 500 million may be shares of preferred stock.

Preferred Stock. We may issue preferred stock in one or more series. The Board of Directors is authorized (1) to fix the descriptions, powers (including voting powers), preferences, rights, qualifications, limitations and restrictions with respect to any series of preferred stock and (2) to specify the number of shares of any series of preferred stock. We have not issued any preferred stock.

Treasury Stock. We generally withhold shares of Delta common stock to cover employees' portion of required tax withholdings when employee equity awards are issued or vest. These shares are valued at cost, which equals the market price of the common stock on the date of issuance or vesting. The weighted average cost of shares held in treasury was $14.31 and $14.24 as of December 31, 2013 and 2012, respectively.

Equity-Based Compensation

Our broad based equity and cash compensation plan provides for grants of restricted stock, stock options, performance awards, including cash incentive awards and other equity-based awards (the "2007 Plan"). Shares of common stock issued under the 2007 Plan may be made available from authorized but unissued common stock or common stock we acquire. If any shares of our common stock are covered by an award that is canceled, forfeited or otherwise terminates without delivery of shares (including shares surrendered or withheld for payment of the exercise price of an award or taxes related to an award), such shares will again be available for issuance under the 2007 Plan. The 2007 Plan authorizes the issuance of up to 157 million shares of common stock. As of December 31, 2013, there were 28 million shares available for future grants.

We make long term incentive awards annually to eligible employees under the 2007 Plan. Generally, awards vest over time, subject to the employee's continued employment. Equity compensation expense for these awards is recognized in salaries and related costs over the employee's requisite service period (generally, the vesting period of the award) and totaled $90 million, $54 million and $72 million for the years ended December 31, 2013, 2012 and 2011, respectively. We record expense on a straight-line basis for awards with installment vesting. As of December 31, 2013, unrecognized costs related to unvested shares and stock options totaled $45 million. We expect substantially all unvested awards to vest.

Restricted Stock. Restricted stock is common stock that may not be sold or otherwise transferred for a period of time and is subject to forfeiture in certain circumstances. The fair value of restricted stock awards is based on the closing price of the common stock on the grant date. As of December 31, 2013, there were seven million unvested restricted stock awards.

Stock Options. Stock options are granted with an exercise price equal to the closing price of Delta common stock on the grant date and generally have a 10-year term. We determine the fair value of stock options at the grant date using an option pricing model. As of December 31, 2013, there were eight million outstanding stock option awards with a weighted average exercise price of $11.80, and seven million were exercisable.

Performance Shares. Performance shares are long-term incentive opportunities which are payable in common stock or cash and are generally contingent upon our achieving certain financial goals.

Other. There was no tax benefit recognized in 2013, 2012 or 2011 related to equity-based compensation as a full valuation allowance was recorded against our deferred tax assets due to the uncertainty regarding the ultimate realization of those assets. At December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets. For more information regarding our income taxes, see Note 12.

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NOTE 14. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following table shows the components of accumulated other comprehensive income (loss):

(in millions)	Pension and Other Benefits Liabilities			Derivative Contracts(1)			Total
Balance at January 1, 2011	$	(3,271	)	$	(307	)	$	(3,578	)
Changes in value (net of tax effect of $0)	(3,062		)	5			(3,057		)
Reclassification into earnings (net of tax effect of $0)	41			(172		)	(131		)
Balance at December 31, 2011	(6,292		)	(474		)	(6,766		)
Changes in value (net of tax effect of $0)	(2,171		)	196			(1,975		)
Reclassification into earnings (net of tax effect of $0)	149			15			164
Balance at December 31, 2012	(8,314		)	(263		)	(8,577		)
Changes in value (net of tax effect of $0)	2,741			296			3,037
Reclassification into earnings (net of tax effect of $321)	224			186			410
Balance at December 31, 2013	$	(5,349	)	$	219		$	(5,130	)

⁽¹⁾  Included $321 million of deferred income tax expense that remained in AOCI until 2013 when all amounts in AOCI that related to fuel derivatives designated as accounting hedges were recognized in the Consolidated Statement of Operations.

NOTE 15. GEOGRAPHIC INFORMATION

Operating segments, airline and refinery, are defined as components of an enterprise whose separate financial information is regularly reviewed by the chief operating decision maker and used in resource allocation and performance assessments.

Our airline segment is managed as a single business unit that provides air transportation for passengers and cargo. This allows us to benefit from an integrated revenue pricing and route network. Our flight equipment forms one fleet, which is deployed through a single route scheduling system. When making resource allocation decisions, our chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics, but gives no weight to the financial impact of the resource allocation decision on an individual carrier basis. Our objective in making resource allocation decisions is to optimize our consolidated financial results.

Our refinery segment operates for the benefit of the airline segment. The revenues of the refinery, primarily consisting of fuel sales to the airline, have been eliminated in the Consolidated Financial Statements. For more information regarding our refinery and segment information, see Note 2.

Operating revenue is assigned to a specific geographic region based on the origin, flight path and destination of each flight segment. Our operating revenue by geographic region (as defined by the United States Department of Transportation) is summarized in the following table:

	Year Ended December 31,
(in millions)	2013		2012		2011
Domestic	$	24,857	$	23,989	$	22,722
Atlantic	6,446		6,329		6,486
Pacific	4,086		4,198		3,644
Latin America	2,384		2,154		2,263
Total	$	37,773	$	36,670	$	35,115

Our tangible assets consist primarily of flight equipment, which is mobile across geographic markets. Accordingly, assets are not allocated to specific geographic regions.

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NOTE 16. RESTRUCTURING AND OTHER ITEMS

The following table shows amounts recorded in restructuring and other items on our Consolidated Statements of Operations:

	Year Ended December 31,
(in millions)	2013		2012			2011
Facilities, fleet and other	$	402	$	293		$	135
Severance and related costs	—		237			100
Routes and slots (See Note 6)	—		(78		)	7
Total restructuring and other items	$	402	$	452		$	242

Facilities, Fleet and Other. We recorded restructuring charges of $402 million and $293 million during 2013 and 2012 primarily related to our fleet restructuring initiative. Under the fleet restructuring initiative, we are focused on removing older, less efficient aircraft from our fleet and replacing them with B-737-900ER, B-717-200 and CRJ-900 aircraft that we have committed to acquire. The 2013 and 2012 restructuring charges are related to older, retiring aircraft, including remaining lease payments for grounded aircraft, the acceleration of aircraft depreciation and lease return costs and related equipment disposals. As an extension of our fleet restructuring initiative and our desire to reduce the number of regional jets in our network, we shut down the operations of Comair, a wholly-owned regional airline subsidiary, as of September 29, 2012. The restructuring charges in 2012 also include amounts associated with the closure of Comair.

During 2011, we recorded charges related to consolidation of facilities and certain aircraft that were removed from our operations.

An important component of the fleet restructuring initiative is to reduce 50-seat CRJ aircraft, which are our least fuel efficient aircraft and have the lowest customer satisfaction ratings. We are targeting a fleet size of 100 to 125 aircraft within the next two years. Our current fleet includes aircraft we lease and aircraft that are operated for us by regional carriers that own or lease aircraft through third parties. As part of the reduction, we will retire a significant portion of the fleet that is leased by us. We expect to continue to recognize material restructuring charges as we retire the leased aircraft for the remaining obligations under the leases. Although many factors could change over the next two years, we currently estimate that future charges will be between $200 million to $300 million, in addition to the $107 million recorded in 2013. The timing and amount of these charges will depend on a number of factors, including our final negotiations with lessors, the timing of removing aircraft from service and the ultimate disposition of aircraft included in the fleet restructuring program. Also, to accelerate the restructuring of the fleet, we may park a portion of the fleet on a temporary basis until contracts for aircraft flying under contract carrier agreements expire. The temporarily parked aircraft will be returned to service as aircraft flying under these expiring agreements exit the fleet. We will continue to incur operating lease expense for these temporarily parked aircraft. As a result of restructuring the fleet, we expect to benefit from improved operational and fuel efficiency, customer service and reduced future maintenance cost that we will experience over the life of the new aircraft.

Severance and Related Costs. During 2012, we recognized a severance charge of $237 million, which included $116 million of special termination benefits (see Note 11). We offered voluntary severance programs in which more than 2,000 employees elected to participate. These participants became eligible for retiree healthcare benefits. Also, we accrued $66 million in severance and related costs in 2012 to provide severance benefits to Comair's 1,700 employees, as we ceased operations at the carrier.

During 2011, we recorded charges associated primarily with voluntary workforce reduction programs to align staffing with expected future capacity.

Gain on Slot Exchange. During December 2011, we closed transactions with US Airways where we received takeoff and landing rights (each a "slot pair") at LaGuardia in exchange for slot pairs at Reagan National. In approving these transactions, the Department of Transportation restricted our use of the exchanged slots. We recorded a $78 million deferred gain in December 2011. We recognized this deferred gain in 2012 as the restrictions lapsed.

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The following table shows the balances and activity for restructuring charges:

	Severance and Related Costs									Lease Restructuring
(in millions)	2013			2012			2011			2013			2012			2011
Liability at beginning of period	$	49		$	46		$	20		$	77		$	64		$	85
Additional costs and expenses	—			126			100			114			45			—
Other	(3		)	—			—			(5		)	—			—
Payments	(46		)	(123		)	(74		)	(18		)	(32		)	(21		)
Liability at end of period	$	—		$	49		$	46		$	168		$	77		$	64

NOTE 17. EARNINGS PER SHARE

We calculate basic earnings per share by dividing the net income by the weighted average number of common shares outstanding, excluding restricted shares. The following table shows our computation of basic and diluted earnings per share:

	Year Ended December 31,
(in millions, except per share data)	2013		2012		2011
Net income	$	10,540	$	1,009	$	854
Basic weighted average shares outstanding	849		845		838
Dilutive effects of share based awards	9		5		6
Diluted weighted average shares outstanding	858		850		844
Basic earnings per share	$	12.41	$	1.20	$	1.02
Diluted earnings per share	$	12.29	$	1.19	$	1.01
Antidilutive common stock equivalents excluded from diluted earnings per share	8		18		17

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NOTE 18. OTHER INVESTMENTS

Endeavor Acquisition

In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Consideration for our acquisition of Endeavor totaled $30 million, primarily consisting of previous loans and advances we made to Endeavor. The primary assets acquired and liabilities assumed related to 16 CRJ-900 aircraft with a fair value of $270 million and related debt of $240 million on the date of acquisition. These aircraft and 169 other aircraft leased by Endeavor were already in service to Delta; accordingly, our capacity was unaffected by the acquisition.

Transatlantic Joint Venture With Virgin Atlantic

In June 2013, we purchased 49% of Virgin Atlantic, a privately held London-based airline, from Singapore Airlines for $360 million. In addition, we entered into a collaborative arrangement with Virgin Atlantic on non-stop routes between the United Kingdom and North America. In September 2013, the U.S. Department of Transportation granted antitrust immunity on these routes. Effective January 1, 2014, we began our immunized collaborative arrangement, which allows for joint marketing and sales, coordinated pricing and revenue management, networking planning and scheduling with respect to operations on routes between North America and the United Kingdom. As a result of this relationship, our customers have increased access and frequencies to London's Heathrow airport from points in the U.S., primarily from our hub at New York's JFK airport.

We account for the investment under the equity method of accounting and recognize our portion of Virgin Atlantic's results in other expense in our Consolidated Statements of Operations. As part of equity method of accounting, we allocated the investment in Virgin Atlantic to (1) our portion of their equity, (2) adjustments in the fair market value of assets and liabilities and (3) implied goodwill. Our share of Virgin Atlantic's equity was approximately $60 million; accordingly, the majority of the allocation was to the fair value of indefinite-lived intangible assets and implied goodwill.

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NOTE 19. DIVIDEND AND SHARE REPURCHASE

In May 2013, we announced a plan to return more than $1 billion to shareholders over the next three years. As part of this plan, our Board of Directors initiated a quarterly dividend program and declared a $0.06 per share dividend for shareholders of record as of August 9, 2013 and November 6, 2013. These dividends were paid in September 2013 and November 2013 and each totaled $51 million. In addition, the Board of Directors authorized a $500 million share repurchase program, to be completed no later than June 30, 2016. During the year ended December 31, 2013, we repurchased and retired approximately 10 million shares at a cost of approximately $250 million. On February 7, 2014, the Board of Directors declared a $0.06 dividend for shareholders of record on February 21, 2014, and payable on March 14, 2014.

NOTE 20. QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table summarizes our unaudited results of operations on a quarterly basis. The quarterly earnings (loss) per share amounts for a year will not add to the earnings per share for that year due to the weighting of shares used in calculating per share data.

	Three Months Ended
(in millions, except per share data)	March 31		June 30			September 30		December 31
2013
Operating revenue	$	8,500	$	9,707		$	10,490	$	9,076
Operating income	222		914			1,563		701
Net income	7		685			1,369		8,479
Basic earnings per share	$	0.01	$	0.81		$	1.61	$	10.02
Diluted earnings per share	$	0.01	$	0.80		$	1.59	$	9.89
2012
Operating revenue	$	8,413	$	9,732		$	9,923	$	8,602
Operating income	382		134			1,308		352
Net income (loss)	124		(168		)	1,047		7
Basic earnings (loss) per share	$	0.15	$	(0.20	)	$	1.24	$	0.01
Diluted earnings (loss) per share	$	0.15	$	(0.20	)	$	1.23	$	0.01

The following are included in the results above:

	Three Months Ended
(in millions)	March 31			June 30			September 30			December 31
2013
Facilities, fleet and other	$	(102	)	$	(34	)	$	(128	)	$	(160	)
MTM adjustments	24			(125		)	285			92
Release of tax valuation allowance	—			—			—			7,989
Total income (loss)	$	(78	)	$	(159	)	$	157		$	7,921
2012
Severance and related cost	$	—		$	(171	)	$	(66	)	$	—
Facilities, fleet and other	(27		)	(22		)	(122		)	(122		)
Gain on slot exchange	39			—			39			—
Loss on extinguishment of debt	—			—			(12		)	(106		)
MTM adjustments	151			(561		)	440			(3		)
Total income (loss)	$	163		$	(754	)	$	279		$	(231	)

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ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our management, including our Chief Executive Officer and Chief Financial Officer, performed an evaluation of our disclosure controls and procedures, which have been designed to permit us to record, process, summarize and report, within time periods specified by the SEC's rules and forms, information required to be disclosed. Our management, including our Chief Executive Officer and Chief Financial Officer, concluded that the controls and procedures were effective as of December 31, 2013 to ensure that material information was accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control

During the three months ended December 31, 2013, we did not make any changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management's Annual Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934. Our internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies may deteriorate.

Management conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2013 using the criteria issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in the 1992 Internal Control-Integrated Framework. Based on that evaluation, management believes that our internal control over financial reporting was effective as of December 31, 2013.

The effectiveness of our internal control over financial reporting as of December 31, 2013 has been audited by Ernst & Young LLP, an independent registered public accounting firm, which also audited our Consolidated Financial Statements for the year ended December 31, 2013. Ernst & Young LLP's report on our internal control over financial reporting is set forth below.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ON INTERNAL CONTROLOVER FINANCIAL REPORTING

The Board of Directors and Stockholders of

Delta Air Lines, Inc.

We have audited Delta Air Lines, Inc.'s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) (the COSO criteria). Delta Air Lines, Inc.'s management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Delta Air Lines, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Delta Air Lines, Inc. as of December 31, 2013 and 2012, and the related consolidated statements of operations, comprehensive income (loss), stockholders' equity (deficit), and cash flows for each of the three years in the period ended December 31, 2013 of Delta Air Lines, Inc. and our report dated February 21, 2014 expressed an unqualified opinion thereon.

Atlanta, Georgia	/s/ Ernst & Young LLP
February 21, 2014

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ITEM 9B. OTHER INFORMATION

None.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE OF THEREGISTRANT

Information required by this item is set forth under the headings “Governance Matters,” “Proposal 1 - Election of Directors - Certain Information About Nominees” and “Other Matters - Section 16 Beneficial Ownership Reporting Compliance” in our Proxy Statement to be filed with the Commission related to our Annual Meeting of Stockholders (“Proxy Statement”), and is incorporated by reference. Pursuant to instruction 3 to paragraph (b) of Item 401 of Regulation S-K, certain information regarding executive officers is contained in Part I of this Form 10-K.

ITEM 11. EXECUTIVE COMPENSATION

Information required by this item is set forth under the headings “Corporate Governance Matters - Compensation Committee Interlocks and Insider Participation,” “Executive Compensation” and “Director Compensation” in our Proxy Statement and is incorporated by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT ANDRELATED STOCKHOLDER MATTERS

Securities Authorized for Issuance Under Equity Compensation Plans

The following table provides information about the number of shares of common stock that may be issued under the 2007 Plan, Delta's only equity compensation plan, as of December 31, 2013.

Plan Category	(a) No. of Securities to be Issued Upon Exercise of Outstanding Options, Warrants and Rights	(b) Weighted-Average Exercise Price of Outstanding Options, Warrants and Rights		(c) No. of Securities Remaining Available for Future Issuance Under Equity Compensation Plans (Excluding Securities Reflected in Column (a))(1)
Equity compensation plans approved by securities holders	7,089,555	$	11.02	27,826,432
Equity compensation plans not approved by securities holders	—	—		—
Total	7,089,555	$	11.02	27,826,432

⁽¹⁾  Up to 157 million shares of common stock are available for issuance under the 2007 Plan. If any shares of our common stock are covered by an award under the 2007 Plan that is canceled, forfeited or otherwise terminates without delivery of shares (including shares surrendered or withheld for payment of the exercise price of an award or taxes related to an award), then such shares will again be available for issuance under the 2007 Plan. In addition to the 7,089,555 stock options outstanding, 6,785,327 shares of restricted stock remain unvested and a maximum of 1,806,334 shares of common stock may be issued upon the achievement of certain performance conditions under outstanding performance share awards as of December 31, 2013.

Other information required by this item is set forth under the heading “Beneficial Ownership of Securities” in our Proxy Statement and is incorporated by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTORINDEPENDENCE

Information required by this item is set forth under the headings “Governance Matters,” “Executive Compensation - Post-Employment Compensation - Other Benefits - Pre-Existing Medical Benefits Agreement with Northwest” and “Proposal 1 - Election of Directors” in our Proxy Statement and is incorporated by reference.

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ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

Information required by this item is set forth under the heading “Proposal 3 - Ratification of the Appointment of Independent Auditors” in our Proxy Statement and is incorporated by reference.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) (1). The following is an index of the financial statements required by this item that are included in this Form 10-K:

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets—December 31, 2013 and 2012

Consolidated Statements of Operations for the years ended December 31, 2013, 2012 and 2011

Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2013, 2012 and 2011

Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012 and 2011

Consolidated Statements of Stockholders' (Deficit) Equity for the years ended December 31, 2013, 2012 and 2011

Notes to the Consolidated Financial Statements

(2). The schedule required by this item is included in Notes 12 and 16 to the Consolidated Financial Statements. All other financial statement schedules are not required or are inapplicable and therefore have been omitted.

(3). The exhibits required by this item are listed in the Exhibit Index to this Form 10-K. The management contracts and compensatory plans or arrangements required to be filed as an exhibit to this Form 10-K are listed as Exhibits 10.9(a) through 10.26 in the Exhibit Index.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on the 21st day ofFebruary 2014.

DELTA AIR LINES, INC.
By:	/s/ Richard H. Anderson
	Richard H. Anderson
	Chief Executive Officer

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Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on the 21st day ofFebruary 2014 by the following persons on behalf of the registrant and in the capacities indicated.

Signature	Title
/s/ Richard H. Anderson	Chief Executive Officer and Director (Principal Executive Officer)
Richard H. Anderson
/s/ Paul A. Jacobson	Executive Vice President and Chief Financial Officer (Principal Financial Officer)
Paul A. Jacobson
/s/ Craig M. Meynard	Vice President and Chief Accounting Officer (Principal Accounting Officer)
Craig M. Meynard
/s/ Edward H. Bastian	President and Director
Edward H. Bastian
/s/ Roy J. Bostock	Director
Roy J. Bostock
/s/ John S. Brinzo	Director
John S. Brinzo
/s/ Daniel A. Carp	Chairman of the Board
Daniel A. Carp
/s/ David G. DeWalt	Director
David G. DeWalt
/s/ William H. Easter III	Director
William H. Easter III
/s/ Mickey P. Foret	Director
Mickey P. Foret
/s/ Shirley C. Franklin	Director
Shirley C. Franklin
/s/ David R. Goode	Director
David R. Goode
/s/ George N. Mattson	Director
George N. Mattson
/s/ Paula Rosput Reynolds	Director
Paula Rosput Reynolds
/s/ Kenneth C. Rogers	Director
Kenneth C. Rogers
/s/ Kenneth B. Woodrow	Director
Kenneth B. Woodrow

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EXHIBIT INDEX

Note to Exhibits: Any representations and warranties of a party set forth in any agreement (including all exhibits and schedules thereto) filed with this Annual Report on Form 10-K have been made solely for the benefit of the other party to the agreement. Some of those representations and warranties were made only as of the date of the agreement or such other date as specified in the agreement, may be subject to a contractual standard of materiality different from what may be viewed as material to stockholders, or may have been used for the purpose of allocating risk between the parties rather than establishing matters as facts. Such agreements are included with this filing only to provide investors with information regarding the terms of the agreements, and not to provide investors with any other factual or disclosure information regarding the registrant or its business.

3.1 Delta's Certificate of Incorporation (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on April 30, 2007).*

3.2 Delta's By-Laws (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on May 22, 2008).*

Delta is not filing any instruments evidencing any indebtedness because the total amount of securities authorized under any single such instrument does not exceed 10% of the total assets of Delta and its subsidiaries on a consolidated basis. Copies of such instruments will be furnished to the Securities and Exchange Commission upon request.

10.1 Credit and Guaranty Agreement, dated as of April 20, 2011, among Delta Air Lines, Inc., as Borrower, the subsidiaries of the Borrower named as Guarantors, each of the several Lenders from time to time party thereto, JPMorgan Chase Bank, N.A., as administrative agent for the Lenders, J.P. Morgan Securities LLC, Goldman Sachs Lending Partners LLC, UBS Securities LLC, Barclays Capital, the investment banking division of Barclays Bank PLC and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as joint lead arrangers, J.P. Morgan Securities LLC, Barclays Capital, Citigroup Global Markets Inc., Credit Suisse AG, Cayman Islands Branch, Deutsche Bank Securities Inc., Goldman Sachs Lending Partners, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Morgan Stanley Senior Funding, Inc. and UBS Securities LLC, as joint bookrunners, Goldman Sachs Lending Partners, LLC and UBS Securities LLC, as co-syndication agents, and Barclays Bank and Bank of America, N.A., as co-documentation agents (Filed as Exhibit 10.1 to Delta's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011).*

10.2 Credit and Guaranty Agreement, dated as of October 18, 2012, among Delta Air Lines, Inc., as Borrower, the subsidiaries of the Borrower named as Guarantors, each of the several Lenders party thereto, Barclays Bank PLC, as administrative agent, Wilmington Trust, National Association, as Collateral Trustee, Deutsche Bank Securities Inc. and UBS Securities LLC, as Co-Syndication Agents, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Citigroup Global Markets Inc., as co-documentation agents, Barclays Bank PLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., Deutsche Bank Securities Inc., and UBS Securities LLC, as joint lead arrangers, and Barclays Bank PLC, BNP Paribas Securities Corp, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc., Goldman Sachs Bank USA, J.P. Morgan Securities LLC, Morgan Stanley Senior Funding, Inc. and UBS Securities LLC, as joint bookrunners.

10.3 Transaction Framework Agreement among Delta, Delta Master Executive Council, Northwest Master Executive Council and Air Line Pilots Association, International dated as of June 26, 2008 (Filed as Exhibit 10 to Delta's Quarterly Report on Form 10-Q for the quarter ended June 30, 2008).*

10.4 Letter Agreement, dated April 14, 2008, by and among Delta Air Lines, Inc., the Master Executive Council of Delta, and Air Line Pilots Association, International dated April 14, 2008 (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended June 30, 2008).*

10.5 Anchor Tenant Agreement dated as of December 9, 2010 between JFK International Air Terminal LLC and Delta Air Lines, Inc. (Filed as Exhibit 10.4 to Delta's Annual Report on Form 10-K for the year ended December 31, 2010).*

10.6 Supplemental Agreement No. 13 to Purchase Agreement Number 2022, dated August 24, 2011, between The Boeing Company and Delta relating to Boeing Model 737NG Aircraft (the “B-737NG Purchase Agreement”) (Filed as Exhibit 10.1 to Delta's Quarterly Report on Form 10-Q for the quarter ended September 30, 2011).*/**

10.7 Letter Agreements, dated August 24, 2011, relating to the B-737NG Purchase Agreement (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended September 30, 2011).*/**

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10.8(a) Aircraft General Terms Agreement, dated October 21, 1997, between Boeing and Delta (Filed as Exhibit 10.6 to Delta's Quarterly Report on Form 10-Q for the quarter ended December 31, 1997).*/**

10.8(b) Letter Agreement, dated August 24, 2011, relating to Revisions to Aircraft General Terms Agreement dated October 21, 1997 and the B-737NG Purchase Agreement (Filed as Exhibit 10.3(b) to Delta's Quarterly Report on Form 10-Q for the quarter ended September 30, 2011).*/**

10.9(a) Delta Air Lines, Inc. 2007 Performance Compensation Plan (Filed as Exhibit 10.1 to Delta's Current Report on Form 8-K filed on March 22, 2007).*

10.9(b) First Amendment to the Delta Air Lines, Inc. 2007 Performance Compensation Plan (Filed as Exhibit 10.12(b) to Delta's Annual Report on Form 10-K for the year ended December 31, 2008).*

10.9(c) Form of Delta 2007 Performance Compensation Plan Award Agreement for Officers (Filed as Exhibit 10.1 to Delta's Current Report on Form 8-K filed on April 30, 2007).*

10.10(a) Delta Air Lines, Inc. Officer and Director Severance Plan, as amended and restated as of January 2, 2009, as further amended October 20, 2009 (Filed as Exhibit 10.11(a) to Delta's Annual Report on Form 10-K for the year ended December 31, 2009).*

10.10(b) Amendment to the Delta Air Lines, Inc. Officer and Director Severance Plan, as amended and restated as of January 2, 2009, as further amended October 20, 2009 (Filed as Exhibit 10.11(b) to Delta's Annual Report on Form 10-K for the year ended December 31, 2009).*

10.11 Description of Certain Benefits of Members of the Board of Directors and Executive Officers (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended June 30, 2011).*

10.12(a) Delta Air Lines, Inc. 2011 Long Term Incentive Program (Filed as Exhibit 10.10(a) to Delta's Annual Report on Form 10-K for the year ended December 31, 2010).*

10.12(b) Model Award Agreement for the Delta Air Lines, Inc. 2011 Long Term Incentive Program (Filed as Exhibit 10.10(b) to Delta's Annual Report on Form 10-K for the year ended December 31, 2010).*

10.13(a) Delta Air Lines, Inc. 2012 Long Term Incentive Program (Filed as Exhibit 10.15 to Delta's Annual Report on Form 10-K for the year ended December 31, 2011).*

10.13(b) Model Award Agreement for the Delta Air Lines, Inc. 2012 Long Term Incentive Program (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended March 31, 2012).*

10.14(a) Delta Air Lines, Inc. 2013 Long Term Incentive Program (Filed as Exhibit 10.14 to Delta's Annual Report on Form 10-K for the year ended December 31, 2012).*

10.14(b) Model Award Agreement for the Delta Air Lines, Inc. 2013 Long Term Incentive Program (Filed as Exhibit 10.1 to Delta's Quarterly Report on Form 10-Q for the quarter ended March 31, 2013).*

10.15 Delta Air Lines, Inc. 2014 Long Term Incentive Program.

10.16 Delta Air Lines, Inc. 2013 Management Incentive Plan (Filed as Exhibit 10.16 to Delta's Annual Report on Form 10-K for the year ended December 31, 2012).*

10.17 Delta Air Lines, Inc. 2014 Management Incentive Plan.

10.18(a) Delta Air Lines, Inc. Transition Award Program (Filed as Exhibit 10.17 to Delta's Annual Report on Form 10-K for the year ended December 31, 2012).*

10.18(b) Model Award Agreement for the Delta Air Lines, Inc. Transition Award Program (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended March 31, 2013).*

102

10.19 Letter Agreement dated as of June 11, 2008 between counsel for and on behalf of Mickey P. Foret and Aviation Consultants, LLC, and counsel for and on behalf of Northwest Airlines, Inc. (Filed as Exhibit 10.22 to Delta's Annual Report on Form 10-K for the year ended December 31, 2008).*

10.20(a) Northwest Airlines, Inc. Excess Pension Plan for Salaried Employees (2001 Restatement) (Filed as Exhibit 10.28 to Northwest's Annual Report on Form 10-K for the year ended December 31, 2006).*

10.20(b) First Amendment of Northwest Airlines Excess Pension Plan for Salaried Employees (2001 Restatement) (Filed as Exhibit 10.3 to Northwest's Quarterly Report on Form 10-Q for the quarter ended September 30, 2005).*

10.20(c) Third Amendment of Northwest Airlines Excess Pension Plan for Salaried Employees (2001 Restatement) (Filed as Exhibit 10.1 to Northwest's Quarterly Report on Form 10-Q for the quarter ended March 31, 2008).*

10.21 Form of Offer of Employment dated October 31, 2008 between Delta Air Lines, Inc. and Richard B. Hirst (Filed as Exhibit 10.2 to Delta's Quarterly Report on Form 10-Q for the quarter ended June 30, 2009).*

10.22 Delta Air Lines, Inc. Restoration Long Term Disability Plan (Filed as Exhibit 10.24 to Delta's Annual Report on Form 10-K for the year ended December 31, 2011).*

10.23 Letter Agreement, dated February 2, 2012 between Delta Air Lines, Inc. and Richard H. Anderson (Filed as Exhibit 10.25 to Delta's Annual Report on Form 10-K for the year ended December 31, 2011).*

10.24 Letter Agreement, dated February 2, 2012 between Delta Air Lines, Inc. and Richard B. Hirst (Filed as Exhibit 10.26 to Delta's Annual Report on Form 10-K for the year ended December 31, 2011).*

10.25 Terms of 2012 Restricted Stock Awards for Non-Employee Directors (Filed as Exhibit 10.1 to Delta’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012).*

10.26 Terms of 2013 Restricted Stock Awards for Non-Employee Directors (Filed as Exhibit 10.1 to Delta’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2013).*

12.1 Statement regarding computation of ratio of earnings to fixed charges for each fiscal year in the five-year period ended December 31, 2013.

21.1 Subsidiaries of the Registrant.

23.1 Consent of Ernst & Young LLP.

31.1 Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer.

31.2 Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer.

32 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act 2002.

101.INS XBRL Instance Document

101.SCH XBRL Taxonomy Extension Schema Document

101.CAL XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF XBRL Taxonomy Extension Definition Linkbase Document

101.LAB XBRL Taxonomy Extension Labels Linkbase Document

101.PRE XBRL Taxonomy Extension Presentation Linkbase Document

____________

* Incorporated by reference.

** Portions of this exhibit have been omitted and filed separately with the Securities and Exchange Commission pursuant to requests for confidential treatment.

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EX-10.15

EXHIBIT 10.15

DELTA AIR LINES, INC.

2014 LONG-TERM INCENTIVE PROGRAM

1.Purpose. The 2014 Long-Term Incentive Program (the “2014 LTIP”) is a long term incentive program sponsored by Delta Air Lines, Inc. (“Delta” or the “Company”) that is intended to closely: (a) link pay and performance by providing management employees with a compensation opportunity based on Delta achieving key business objectives and (b) align the interests of management employees with the Company’s other employees and stakeholders.

The 2014 LTIP is being adopted under the Delta Air Lines, Inc. 2007 Performance Compensation Plan (“2007 Performance Plan”). It is subject to the terms of the 2007 Performance Plan and an individual’s 2014 LTIP Award Agreement (“Award Agreement”).

Capitalized terms that are used but not defined in the 2014 LTIP shall have the meaning ascribed to them in the 2007 Performance Plan. For purposes of the 2014 LTIP, the definitions of “Good Reason,” and “Retirement” as set forth in the 2007 Performance Plan are hereby replaced or modified under Section 6 below, and shall apply as set forth in Section 6 in lieu of the definitions of these terms in the 2007 Performance Plan or as modified, as applicable.

2.Plan Administration. (a) The Personnel & Compensation Committee of the Board of Directors (the “Committee”)shall be responsible for the general administration and interpretation of the 2014 LTIP and for carrying out its provisions. The Committee shall have such powers as may be necessary to discharge its duties hereunder, including, without limitation, the following powers and duties, but subject to the terms of the 2014 LTIP:

(i) authority to construe and interpret the terms of the 2014 LTIP, and to determine eligibility, awards and the amount, manner and time of payment of any awards hereunder;

(ii) authority to prescribe forms and procedures for purposes of the 2014 LTIP participation and distribution of awards; and

(iii) authority to adopt rules and regulations and to take such actions as it deems necessary or desirable for the proper administration of the 2014 LTIP.

(b) Any rule or decision by the Committee that is not inconsistent with the provisions of the 2014 LTIP shall be conclusive and binding on all persons, and shall be given the maximum deference permitted by law.

(c)Notwithstanding anything contained in the 2007 Performance Plan to the contrary, the Committee shall not have the authority to increase or decrease the actual payout of any Performance Award (as defined below) granted to any Participant pursuant to Section 4(b) hereunder.

3.Individual Award Agreements. Any person offered an Award under the 2014 LTIP will be required to sign an individual Award Agreement. Execution by such person of his or her Award Agreement will be a prerequisite to the effectiveness of the Award under the 2014 LTIP and to the person’s becoming a Participant in the 2014 LTIP. The terms and conditions of any Award Agreement, if contrary to the terms of the 2014 LTIP, shall govern the rights of the corresponding Participant.

4.Awards.

(a)Restricted Stock.

(i)Award Grant. A Participant may receive Restricted Stock as specified in the Participant’s Award Agreement (the “Restricted Stock”).

(ii)Grant Date. The Grant Date of the Restricted Stock will be determined by the Committee in accordance with the Company’s Equity Award Grant Policy, as in effect from time to time, and set forth in a Participant’s Award Agreement.

(iii)Restrictions.Until the restrictions imposed by this Section 4(a) (the “Restrictions”) have lapsed pursuant to Section 4(a)(iv), (v) or (vi) below, a Participant will not be permitted to sell, exchange, assign, transfer, pledge or otherwise dispose of the Restricted Stock and the Restricted Stock will be subject to forfeiture as set forth below.

(iv)Lapse of Restrictions-Continued Employment. Subject to the terms of the 2007 Performance Plan and the 2014 LTIP, the Restrictions shall lapse and be of no further force or effect with respect to one-third of the Shares of Restricted Stock on each of the following dates: (A) February 1, 2015 (“First RS Installment”), (B) February 1, 2016 (“Second RS Installment”) and (C) February 1, 2017 (“Third RS Installment”).¹

(v)Lapse of Restrictions/Forfeiture upon Termination of Employment. The Restricted Stock and the Restrictions set forth in this Section 4(a) are subject to the following terms and conditions:

(A)Without Cause or For Good Reason. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate), with respect to any portion of the Restricted Stock subject to the Restrictions, the Restrictions shall immediately lapse on the Pro Rata RS Portion as of the date of such Termination of Employment. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason, any Restricted Stock that remains subject to the Restrictions, other than the Pro Rata RS Portion, shall be immediately forfeited.

“Pro Rata RS Portion” means, with respect to any portion of Restricted Stock that is subject to the Restrictions at the time of a Participant’s Termination of Employment, the number of Shares with respect to which the Restrictions would have lapsed on each future RS Installment multiplied by a fraction (i) the numerator of which is the number of calendar months² from the Grant Date to the date of such Termination of

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¹    The number of Shares subject to each RS Installment will be equal to the total number of Shares subject to the Restricted Stock Award divided by three; provided, that if this formula results in any fractional Share allocation to any RS Installment, the number of Shares with respect to which the Restrictions lapse under the First RS Installment and, if necessary, the Second RS Installment, will be increased so that only full Shares are covered by each RS Installment. For example, if a Restricted Stock Award covers 1,000 Shares, the Restrictions will lapse with respect to 334 Shares under the First RS Installment and 333 Shares under each of the Second and Third RS Installments.

²    For purposes of the 2014 LTIP, one calendar month is calculated from the date of measurement to the same or closest numerical date occurring during the following month. For example, one calendar month from January 31, 2014 will elapse as of February 28, 2014, two months will elapse on March 31, 2014, and so on.

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Employment, rounded up for any partial month and (ii) the denominator of which is twelve (12) for the First RS Installment, twenty-four (24) for the Second RS Installment and thirty-six (36) for the Third RS Installment.³ 

(B)Voluntary Resignation. Upon a Participant’s Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement), any portion of the Restricted Stock subject to the Restrictions shall be immediately forfeited.

(C)Retirement. Subject to Section 4(a)(v)(F) below, upon a Participant’s Termination of Employment by reason of Retirement, with respect to any portion of the Restricted Stock subject to the Restrictions, the Restrictions shall immediately lapse on the Pro Rata RS Portion as of the date of such Termination of Employment. Pro Rata RS Portion has the meaning set forth in Section 4(a)(v)(A) above. Upon a Participant’s Termination of Employment by reason of Retirement, any Restricted Stock that remains subject to the Restrictions, other than the Pro Rata RS Portion, shall be immediately forfeited.

(D)Death or Disability. Upon a Participant’s Termination of Employment due to death or Disability, the Restrictions shall immediately lapse and be of no further force or effect as of the date of such Termination of Employment.

(E)For Cause. Upon a Participant’s Termination of Employment by the Company for Cause, any portion of the Restricted Stock subject to the Restrictions shall be immediately forfeited.

(F) Retirement-Eligible Participants Who Incur a Termination of Employment for Other Reasons. If a Participant who is eligible for Retirement is, or would be, terminated by the Company without Cause, such Participant shall be considered to have been terminated by the Company without Cause for purposes of the 2014 LTIP rather than having retired, but only if the Participant acknowledges that, absent Retirement, the Participant would have been terminated by the Company without Cause. If, however, the employment of a Participant who is eligible for Retirement is terminated by the Company for Cause, then regardless of whether the Participant is considered as a retiree for purposes of any other program, plan or policy of the Company, for purposes of the 2014 LTIP, the Participant’s employment shall be considered to have been terminated by the Company for Cause.

(vi)Change in Control.Notwithstanding the forgoing and subject to Section 5 below, upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate) on or after a Change in Control but prior to the second anniversary of such Change in Control, any Restrictions in effect shall immediately lapse on the date of such Termination of Employment and be of no further force or effect as of such date.

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³    If this formula results in any fractional Share, the Pro Rata RS Portion will be rounded up to the nearest whole Share.

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(vii)Dividends. In the event a cash dividend shall be paid with respect to Shares at a time the Restrictions on the Restricted Stock have not lapsed, the Participant shall be eligible to receive the dividend upon the lapse of the Restrictions. The Restrictions shall apply to any such dividend.

(b)Performance Awards.

(i)Award Grant. A Participant may receive a Performance Award for a specified target cash amount as set forth in the Participant’s Award Agreement (a “Performance Award”).

(ii)Grant Date. The Grant Date of the Performance Award will be determined by the Committee and set forth in the Participant’s Award Agreement.

(iii)Payout Criteria and Form of Payment. Except as otherwise expressly set forth in this Section 4(b), payment, if any, of a Performance Award will be based on the following factors as described and defined below: (A) the Average Annual Operating Income Margin during the Performance Period of the Company relative to the Composite Performance of the members of the Industry Composite Group; (B) Customer Service Performance during the Performance Period of the Company; and (C) Return on Invested Capital for each calendar year during the Performance Period of the Company.

The payout, if any, of a Performance Award will be made (A) in Shares, calculated based on the Conversion Formula (as defined below), to each Participant who is employed by the Company as an executive vice president or more senior officer (“Executive Officer Participant”) at the time of such payout and (B) in cash in all other circumstances.

(iv)Definitions.

(A)In General.

(1) “Composite Performance” means, for purposes of determining the total Average Annual Operating Income Margin of the Industry Composite Group, the result obtained by treating the members of the Industry Composite Group as if they were one combined entity.

(2) The “Conversion Formula” will apply to convert from cash to Shares the payout, if any, of a Performance Award to a person who is an Executive Officer Participant at the time of such payout. First, the cash amount of the payout is calculated in the same manner as if the payout is being made in cash. Next, the cash amount is converted into a number of Shares based on the following formula: A ÷ B, where:

A = the amount of the payout for the Performance Award if it is paid in cash; and

B = the closing price of a Share on the New York Stock Exchange on the later of (1) the date that the Committee approves the payouts, if any, of the Performance Awards to the Executive Officer Participants following the Committee’s determination of the achievement of the payout criteria described in Section 4(b)(iii) and (2) the third

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business day following the date on which the Company publicly announces its annual financial results if this date is scheduled in the same month that the Committee approves such payouts, if any.

(3) “GAAP” means accounting principles generally accepted in the United States of America.

(4) “Industry Composite Group” means Alaska Air Group, Inc., AMR Corporation, JetBlue Airways Corporation, Southwest Airlines Co., United Continental Holdings, Inc., and US Airways Group, Inc.

(5) “Performance Period” means the period beginning on January 1, 2014 and ending on and including December 31, 2016.

(B)Average Annual Operating Income Margin.

(1) The “Average Annual Operating Income Margin” for Delta and each member of the Industry Composite Group shall be calculated by using the subject company’s Operating Income and Total Operating Revenue for the applicable periods and the following formula: (A ÷ B ), where:

A = Operating Income for 2014, 2015, and 2016; and

B = Total Operating Revenue for 2014, 2015, and 2016.

(2) “Operating Income” means, subject to Section 4(b)(v)(B) below, the subject company’s consolidated operating income for the applicable periods based on its statements of operations contained in reports on Forms 10-Q and 10-K filed with the Securities and Exchange Commission (“SEC”) prepared in accordance with GAAP, but excluding: (i) items presented in the line item “restructuring and other items” or such similar line item; (ii) mark-to-market adjustments for fuel hedges recorded in periods other than the settlement period; (iii) other special, unusual, or nonrecurring items which are disclosed in publicly available filings with the SEC; and (iv) expenses with respect to any annual broad-based employee profit sharing plan, program or similar arrangement.

(3) “Total Operating Revenue” means, subject to Section 4(b)(v)(B) below, the subject company’s total operating revenue for the applicable periods based on its regularly prepared and publicly available statements of operations prepared in accordance with GAAP.

(C)Customer Service Performance.

(1) The “Customer Service Performance” for Delta shall be measured based on the percentage point improvement in Delta’s average monthly Net Promoter Score (“NPS”) from the 2013 calendar year to the average monthly NPS over the Performance Period, with (A) Delta’s NPS performance attributable to domestic travel accounting for 60% of the

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measure and (ii) Delta’s NPS performance attributable to international travel accounting for 40% of the measure. The criteria and methodology used to determine Delta’s NPS is described in a document titled, “‘Net Promoter’: Measuring Customer Satisfaction at Delta,” which was previously reviewed by the Committee. Company management will periodically report to the Company’s Board of Directors regarding Delta’s NPS.

(D) Return on Invested Capital.

(1) The “Return on Invested Capital” for Delta shall be calculated by using Delta’s Adjusted Total Operating Income and Average Invested Capital for each individual calendar year during the Performance Period (2014, 2015, and 2016) and the following formula (AB), where:

A = Adjusted Total Operating Income; and

B = Average Invested Capital.

(2) “Adjusted Total Operating Income” means, subject to Section 4(b)(v)(B) below, Delta’s consolidated operating income for the applicable periods based on its regularly prepared and publicly available statements of operations prepared in accordance with GAAP, but excluding, (i) items present in the line item “restructuring and other items” or such similar line item; (ii) mark-to-market adjustments for fuel hedges recorded in periods other than the settlement period; (iii) other special, unusual, or nonrecurring items which are disclosed in publicly available filings with the SEC; and (iv) implied interest in aircraft rent expense, and amortized pension expense related to gains/losses that impact accumulated other comprehensive income (“AOCI”).

(3) “Average Invested Capital” means, subject to Section 4(b)(v)(B) below, Delta’s total invested capital determined based on the average of a trailing five calendar quarters measured from the last calendar quarter preceding each calendar year of the Performance Period,⁴ using the following formula, (A+B), where:

A = Adjusted Book Value of Equity; and

B = Adjusted Net Debt.

(4) “Adjusted Book Value of Equity” for Delta shall be calculated quarterly based on its regularly prepared internal financial statements (i) with an initial starting value for the quarter ending December 31, 2013 (the “Initial Value”) equal to the book value of equity determined in accordance with GAAP as of December 31, 2013, but excluding the

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⁴    For example, for determining Average Invested Capital for the 2014 calendar year, the trailing five calendar quarter average will be measured based on the quarter ending December 31, 2013 and each of the subsequent four quarters of 2014.

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impact of gains or losses as of December 31, 2013 associated with (1) the cumulative pension and other post-employment retirement benefits net balance recorded in AOCI; (2) the derivative contracts and associated items net balance recorded in AOCI; and (3) the deferred tax asset valuation allowance balance and (ii) using the following formula for each subsequent quarter thereafter, (A+B+C), where:

A = The Initial Value;

B =  The cumulative amount starting as of January 1, 2014  and ending as of the last day of the applicable calendar quarter of the Company’s pre-tax income determined in accordance with GAAP, but (i) excluding:  (1) items present in the line item “restructuring and other items” or such similar line item; (2) mark-to-market adjustments for fuel hedges recorded in periods other than the settlement period; and (3) other special, unusual, or nonrecurring items which are disclosed in publicly available filings with the SEC and (ii) including expenses due to amortization of post-employment benefit losses in AOCI that have occurred during the Performance Period; and

C = in the event that the Company pays a dividend or issues or repurchases additional Common Stock for cash during the Performance Period (but excluding the exercise of any employee stock option for cash or any other issuance of Common Stock to employees), (i) the gross cash proceeds of the equity issuance or (ii) the gross cash payments for the equity repurchase or dividends, before adjustment for any applicable fees or charges associated therewith. 

(5) “Adjusted Net Debt” for Delta shall be calculated quarterly based on its regularly prepared internal financial statements using the following formula (A+B-C), subject to Section 4(b)(v)(B), where:

A = Total gross long term debt and capital leases (including current maturities) that reflect Delta’s actual obligations to lenders or lessors, including any adjustments from the book value to reflect premiums or discounts that may be amortizing;

B = Annual aircraft rent expense multiplied by seven; and

C = Unrestricted cash, cash equivalents and short-term investments.

(v) Vesting.

(A)General. Subject to the terms of the 2007 Performance Plan, the 2014 LTIP, and all other conditions included in any applicable Award Agreement, the Performance Award shall vest, as described in this Section 4(b)(v), as of the end of the Performance Period to the extent that the Company’s actual performance results meet or exceed Threshold level with respect to Average Annual Operating Income Margin, Customer Service Performance and/or Return on Invested Capital, as applicable and as described below. For purposes of Average Annual Operating Income Margin, the

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Company’s performance is compared against the Composite Performance of the Industry Composite Group.

(B)Committee’s Authority. In determining the Average Annual Operating Income Margin for Delta and each member of the Industry Composite Group and the Return on Invested Capital for Delta, the Committee shall make such adjustments with respect to any subject company as is necessary to ensure the results are comparable, including, without limitation, differences in accounting policies, practices, guidelines, reclassifications or restatements (for example, fuel hedging, purchase accounting adjustments associated with mergers, acquisitions or divestures, or fresh start accounting as a result of emergence from bankruptcy). Without limiting the generality of the forgoing, the Committee shall (i) make such determinations based on financial data filed by the subject company with the U.S. Department of Transportation or otherwise and (ii) exclude from any calculation any item of gain, loss, or expense to be extraordinary or unusual in nature or infrequent in occurrence.

(C)Impact of Certain Events. A company shall be automatically removed from the Industry Composite Group in the event that any of the following occur during or with respect to the Performance Period: (i) such company ceases to maintain or does not timely prepare publicly available statements of operations prepared in accordance with GAAP; (ii) such company is not the surviving entity in any merger, consolidation, or other non-bankruptcy reorganization (or survives only as a subsidiary of an entity other than a previously wholly owned subsidiary of such company); (iii) such company sells, leases, or exchanges all or substantially all of its assets to any other person or entity (other than a previously wholly owned subsidiary of such company); (iv) such company is dissolved and liquidated; or (v) more than 20% of such company's revenues (determined on a consolidated basis based on the regularly prepared and publicly available statements of operations of such company prepared in accordance with GAAP) for any fiscal year of such company are attributable to the operation of businesses other than such company's airline business and such company does not provide publicly available statements of operations with respect to its airline business that are separate from the statements of operations provided with respect to its other businesses.

(D)Transactions Between Airlines. To the extent reasonably practicable, in the event of a merger, consolidation, or similar transaction during the Performance Period between Delta and any other airline, including a member of the Industry Composite Group, or between any member of the Industry Composite Group and any other airline, including another member of the Industry Composite Group (an “Airline Merger”), Average Annual Operating Income Margin for any such company involved in an Airline Merger will be calculated on a combined basis as if the Airline Merger had occurred on January 1, 2014, removing the effects of purchase accounting-related adjustments. Furthermore, to the extent reasonably practicable, in the event of an acquisition or divestiture, or similar transaction during the Performance Period between Delta and any regional carrier or between any member of the Industry Composite Group and any regional carrier (a “Regional Carrier Transaction”), Average Annual Operating Income Margin and, as applicable, Return on Invested Capital for any such company involved in a Regional Carrier Transaction will be calculated to remove the impact of any reclassifications of costs from (or to) such company’s presentation of contract carrier expense to (or from) the other expense line items on the statement of operations (determined based on the regularly prepared and publicly available statements of operations of such company prepared in accordance with GAAP).

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(E)    Vesting/Performance Measures-Excluding Return on Invested Capital. The payment, if any, a Participant will receive in connection with the vesting of the portion of the Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance will be based on the following:

Average Annual Operating Income Margin			+	Customer Service Performance--Domestic			+	Customer Service Performance--International
Performance Measure		% of Target Earned x Weight		Performance Measure		% of Target Earned x Weight		Performance Measure		% of Target Earned x Weight
Maximum	20.0% above Composite Performance	200% x50%		Maximum	+4.5% points or higher	200% x15%		Maximum	+5.5% points or higher	200% x10%
Target	Composite Performance	100% x50%		Target	+2.5% points	100% x15%		Target	+3.5% points	100% x10%
Threshold	20.0% below Composite Performance	50% x 50%		Threshold	+0% points	50% x 15%		Threshold	+2.0% points	50% x 10%

Any portion of a Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance that does not vest at the end of the Performance Period will immediately lapse and become void. Payouts based on the above performance measures will be straight-line interpolated when actual performance results fall above Threshold and below Target or above Target and below Maximum.

(F)Vesting/Performance Measures-Return on Invested Capital. The payment, if any, a Participant will receive in connection with the vesting of the portion of the Performance Award attributable to Return on Invested Capital will be based on the following:

Return on Invested Capital 2014			+	Return on Invested Capital 2015			+	Return on Invested Capital 2016
Performance Measure		% of Target Earned x Weight		Performance Measure		% of Target Earned x Weight		Performance Measure		% of Target Earned x Weight
Maximum	14.0% or higher	200%  x 8.333%		Maximum	14.0% or higher	200%  x 8.333%		Maximum	14.0% or higher	200%  x 8.334%
Target	12.0%	100%  x 8.333%		Target	12.0%	100%  x 8.333%		Target	12.0%	100%  x 8.334%
Threshold	10.0%	50% x 8.333%		Threshold	10.0%	50% x 8.333%		Threshold	10.0%	50% x 8.334%

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The Company’s Return on Invested Capital performance will be measured each calendar year during the Performance Period (each calendar year increment is referred to herein as an “ROIC Installment”) and to the extent that the Company’s actual performance results meet or exceed Threshold level at the end of each calendar year during the Performance Period, each such ROIC Installment will be treated as an “Earned Award.” A Participant’s Earned Award(s), if any, will accumulate until the end of the Performance Period at which time all Earned Awards will vest.

Any ROIC Installment that does not vest at the end of the Performance Period will immediately lapse and become void. Payouts based on the above performance measures will be straight-line interpolated when actual performance results fall above Threshold and below Target or above Target and below Maximum.

(vi)Timing of Payment. The payout, if any, of any Performance Award that vests under Section 4(b)(v) will be made as soon after the end of the Performance Period as the payment amount can be finally determined, but in no event later than March 15, 2017, unless it is administratively impracticable to do so, and such impracticability was not foreseeable at the end of 2016, in which case such payment shall be made as soon as administratively practicable after March 15, 2017.

(vii)Accelerated Vesting/Forfeiture upon Termination of Employment-Excluding Return on Invested Capital. The portion of the Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance is subject to the following terms and conditions.

(A) Without Cause or For Good Reason. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate), the portion of the Participant’s target Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance will be recalculated and will be the result of the following formula (the “Adjusted Performance Award”): S × (T ÷ 36) where,

S = the portion of the Participant’s target Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance as of the Grant Date; and

T = the number of calendar months from January 1, 2014 to the date of such Termination of Employment (rounded up for any partial month).

Thereafter, the Participant will be eligible to receive a payment, if any, in cash based on the Adjusted Performance Award which will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

(B)Voluntary Resignation. Upon a Participant’s Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement) prior to the end of the workday on December 31, 2016, the Participant will immediately forfeit any unpaid portion of the Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance as of the date of

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such Termination of Employment. In the event a Participant incurs a Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement) on or after January 1, 2017, the Participant will remain eligible for any unpaid Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance, which award will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

(C)Retirement. Subject to Section 4(b)(vii)(F) below, upon a Participant’s Termination of Employment due to Retirement, the portion of the Participant’s target Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance will be recalculated in accordance with the formula set forth in Section 4(b)(vii)(A) above. Thereafter, the Participant will be eligible to receive a payment, if any, in cash based on the Adjusted Performance Award which will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

(D)Death or Disability. Upon a Participant’s Termination of Employment due to death or Disability, the portion of the Participant’s Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance will immediately become vested at the target level and such amount will be paid in cash as soon as practicable thereafter to the Participant or the Participant’s estate, as applicable.

(E) For Cause. Upon a Participant’s Termination of Employment by the Company for Cause, the Participant will immediately forfeit any unpaid portion of the Performance Award attributable to Average Annual Operating Income Margin and Customer Service Performance as of the date of such Termination of Employment.

(F)Retirement-Eligible Participants Who Incur a Termination of Employment for Other Reasons. If a Participant who is eligible for Retirement is, or would be, terminated by the Company without Cause, such Participant shall be considered to have been terminated by the Company without Cause for purposes of the 2014 LTIP rather than having retired, but only if the Participant acknowledges that, absent Retirement, the Participant would have been terminated by the Company without Cause. If, however, the employment of a Participant who is eligible for Retirement is terminated by the Company for Cause, then regardless of whether the Participant is considered as a retiree for purposes of any other program, plan or policy of the Company, for purposes of the 2014 LTIP, the Participant’s employment shall be considered to have been terminated by the Company for Cause.

(viii)Accelerated Vesting/Forfeiture upon Termination of Employment-Return on Invested Capital. The portion of the Performance Award attributable to Return on Invested Capital is subject to the following terms and conditions.

(A)Without Cause or For Good Reason. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate), the Participant will be eligible to receive:

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(1)payment of any Earned Awards in cash, which Earned Awards will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued; and

(2)with respect to the ROIC Installment outstanding in the calendar year of the Participant’s Termination of Employment, the Participant’s ROIC Installment for such year will be recalculated and will be the result of the following formula (the “Adjusted ROIC Installment”): U x (V ÷ 12) where,

U = the Participant’s target Performance Award with respect to the applicable ROIC Installment, as of the Grant Date; and

V = the number of calendar months from January 1 of the calendar year in which the Termination of Employment occurred to the date of such Termination of Employment (rounded up for any partial month).

Thereafter, the Participant will be eligible to receive a payment, if any, based on the Adjusted ROIC Installment which will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

Upon a participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason, any ROIC Installment(s) outstanding in the calendar year(s) following the year in which the Participant’s Termination of Employment occurred shall be immediately forfeited as of the date of such Termination of Employment.

(B)Voluntary Resignation. Upon a Participant’s Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement) prior to the end of the workday on December 31, 2016, the Participant will immediately forfeit any unpaid portion of the Performance Award attributable to Return on Invested Capital, including any Earned Awards, as of the date of such Termination of Employment. In the event a Participant incurs a Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement) on or after January 1, 2007, the Participant will remain eligible for any unpaid Performance Award attributable to Return on Invested Capital, including any Earned Awards, which award will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

(C)Retirement. Subject to Section 4(b)(viii)(F) below, upon a Participant’s Termination of Employment due to Retirement, the Participant will be eligible to receive:

(1)payment of any Earned Awards in cash, which Earned Awards will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued; and

(2)with respect to the ROIC Installment outstanding in the year of the Participant’s Termination of Employment, the Participant’s ROIC Installment for such year will be recalculated in accordance with the formula set forth in Section 4(b)(viii)(A) above.

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Thereafter, the Participant will be eligible to receive a payment, if any, based on the Adjusted ROIC Installment which will vest and become payable under Section 4(b)(v) in the same manner and to the same extent as if the Participant’s employment had continued.

Upon a participant’s Termination of Employment by reason of Retirement, any ROIC Installment(s) outstanding in the calendar year(s) following the year in which the Participant’s Termination of Employment occurred shall be immediately forfeited as of the date of such Termination of Employment.

(D)Death or Disability. Upon a Participant’s Termination of Employment due to death or Disability, the Participant will be eligible to receive:

(1)payment of any Earned Awards, which Earned Awards will immediately become vested and such amount will be paid in cash as soon as practicable thereafter to the Participant or the Participant’s estate, as applicable; and

(2) with respect to any remaining ROIC Installment(s) outstanding as of the date of the Participant’s Termination of Employment, the Participant’s ROIC Installment(s) will immediately become vested at the target level and such amount will be paid in cash as soon as practicable thereafter to the Participant or the Participant’s estate, as applicable.

(E) For Cause. Upon a Participant’s Termination of Employment by the Company for Cause, the Participant will immediately forfeit any unpaid portion of the Performance Award attributable to Return on Invested Capital, including any Earned Awards, as of the date of such Termination of Employment.

(F)Retirement-Eligible Participants Who Incur a Termination of Employment for Other Reasons. If a Participant who is eligible for Retirement is, or would be, terminated by the Company without Cause, such Participant shall be considered to have been terminated by the Company without Cause for purposes of the 2014 LTIP rather than having retired, but only if the Participant acknowledges that, absent Retirement, the Participant would have been terminated by the Company without Cause. If, however, the employment of a Participant who is eligible for Retirement is terminated by the Company for Cause, then regardless of whether the Participant is considered as a retiree for purposes of any other program, plan or policy of the Company, for purposes of the 2014 LTIP, the Participant’s employment shall be considered to have been terminated by the Company for Cause.

(ix)Change in Control.Notwithstanding the forgoing and subject to Section 5 below, upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate) on or after a Change in Control but prior to the second anniversary of such Change in Control, the Participant’s outstanding Performance Award shall immediately become vested at the target level (or, with respect to any Earned Award, at the level at which it was earned) and such amount will be paid in cash to the Participant as soon as practicable. With respect to any Participant who incurs a Termination of Employment by the Company without Cause or who resigns for Good Reason prior to a Change in Control, if a Change in Control occurs thereafter

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during the Performance Period, such Participant’s Adjusted Performance Award, Adjusted ROIC Installment and Earned Awards, if any, will immediately become vested and be paid in cash to the Participant as soon as practicable.

(c)Restricted Stock Units

(i)Award Grant. A Participant may receive Restricted Stock Units as specified in the Participant’s Award Agreement (the “RSU”).

(ii)Grant Date. The Grant Date of the RSUs will be determined in accordance with the Company’s Equity Award Grant Policy, as in effect from time to time, and set forth in the Participant’s Award Agreement.

(iii)Risk of Forfeiture. Until an RSU becomes vested, a Participant will not be permitted to sell, exchange, assign, transfer, pledge or otherwise dispose of the RSU and the RSU will be subject to forfeiture as set forth below.

(iv)Vesting. Subject to the terms of 2007 Performance Plan and the 2014 LTIP, the RSUs will vest with respect to one-third of the RSUs on each of the following dates: (A) February 1, 2015 (“First RSU Installment”), (B) February 1, 2016 (“Second RSU Installment”) and (C) February 1, 2017 (“Third RSU Installment”).⁵

As soon as practicable after any RSUs become vested, the Company shall pay to Participant in cash a lump sum amount equal to the number of RSUs vesting multiplied by the closing price of a Share of Common Stock on the NYSE on the vesting date or, if the Common Stock was not traded on the NYSE on the vesting date, the last date prior to the vesting date that the Common Stock was traded on the NYSE.

(v)Accelerated Vesting; Forfeiture. The RSUs and the vesting provisions set forth in this Section 4(c) are subject to the following terms and conditions:

(A)Without Cause or For Good Reason. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate), a number of RSUs equal to the Pro Rata RSU Portion will become immediately vested as of the date of such termination. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason, any unvested RSUs, other than the Pro Rata RSU Portion, shall be immediately forfeited.

“Pro Rata RSU Portion” means, with respect to any RSU Installment that is not vested at the time of a Participant’s Termination of Employment, the number of RSUs covered by such RSU Installment multiplied by a fraction (i) the numerator of which is

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⁵    The number of RSUs subject to each RSU Installment will be equal to the total number of RSUs divided by three; provided, that if this formula results in any fractional RSU allocation to any RSU Installment, the number of RSUs in the First RSU Installment and, if necessary, the Second RSU Installment, will be increased so that only full RSUs are covered by each RSU Installment. For example, if an RSU Award covers 1,000 RSUs, the RSU will vest with respect to 334 RSUs under the First RSU Installment and 333 RSUs under each of the Second and Third RSU Installments.

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the number of calendar months⁶ from the Grant Date to the date of such Termination of Employment, rounded up for any partial month and (ii) the denominator of which is twelve (12) for the First RSU Installment, twenty-four (24) for the Second RSU Installment and thirty-six (36) for the Third RSU Installment.⁷

(B)Voluntary Resignation. Upon a Participant’s Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement), any unvested portion of the RSUs shall be immediately forfeited.

(C)Retirement. Subject to Section (4)(c)(v)(F) below, upon a Participant’s Termination of Employment by reason of Retirement, with respect to any RSU Installment that is not then vested, a number of RSUs equal to the Pro Rata RSU Portion will become immediately vested as of the date of such Termination of Employment. Pro Rata RSU Portion has the meaning set forth in Section 4(c)(v)(A) above. Upon a Participant’s Termination of Employment by reason of Retirement, any unvested RSUs, other than the Pro Rata RSU Portion, shall be immediately forfeited.

(D) Death or Disability. Upon a Participant’s Termination of Employment due to death or Disability, all unvested RSUs will immediately vest as of the date of such Termination of Employment.

(E) For Cause. Upon a Participant’s Termination of Employment by the Company for Cause, any unvested portion of the RSUs shall be immediately forfeited.

(F)Retirement-Eligible Participants Who Incur a Termination of Employment for Other Reasons. If a Participant who is eligible for Retirement, is, or would be, terminated by the Company without Cause, such participant shall be considered to have been terminated by the Company without Cause for purposes of this Agreement rather than having retired, but only if the Participant acknowledges, that absent Retirement, the Participant would have been terminated by the Company without Cause. If, however, the employment of a Participant who is eligible for Retirement is terminated by the Company for Cause, then regardless of whether the Participant is considered a retiree for purposes of any other program, plan or policy of the Company, for purposes of this Agreement, the Participant’s employment shall be considered to have been terminated by the Company for Cause.

(vi)Change in Control.Notwithstanding the foregoing and subject to Section 5 below, upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate) on or after a Change in Control, but prior to the second anniversary of such Change in Control, any unvested portion of the RSUs will immediately vest as of the date of such Termination of Employment.

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⁶    For purposes of the 2014 LTIP, one calendar month is calculated from the date of measurement to the same or closest numerical date occurring during the following month. For example, one calendar month from January 31, 2014 will elapse as of February 28, 2014, two months will elapse on March 31, 2014, as so on.

⁷    If this formula results in any fractional RSUs, the Pro Rata RSU Portion will be rounded up to the nearest whole RSU.

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(d)Stock Option

(i)Award Grant. A Participant may receive a Non-Qualified Stock Option covering the number of Shares as specified in the Participant’s Award Agreement (the “Option”).

(ii)Grant Date. The Grant Date of the Option will be determined by the Committee in accordance with the Company’s Equity Award Grant Policy, as in effect from time to time, and set forth in a Participant’s Award Agreement.

(iii)Exercise Price. The exercise price of the Option is the closing price of a Share on the New York Stock Exchange on the Grant Date.

(iv)Exercise Period/Performance Measures. Subject to the terms of the 2007 Performance Plan and the 2014 LTIP, an Option shall:

(A)vest and become exercisable upon the achievement of either of the following two performance measures in the proportion and on the dates (each an “Option Installment Vesting Date”) set forth below:

(1) If there is a payout under the Company’s broad-based employee profit sharing program (the “Profit Sharing Program”) for 2014, the Option shall vest and become exercisable with respect to one-third of the Shares on each of the following dates: (I) February 1, 2015 (the “First Option Installment”), (II) February 1, 2016 (the “Second Option Installment”)and (III) February 1, 2017 (the “Third Option Installment”); or

(2) If there is no payout under the Profit Sharing Program for 2014, but there is a payout under the Profit Sharing Program for 2015, the Option shall vest and become exercisable with respect to (I) the First and Second Option Installments on February 1, 2016 and (II) the Third Option Installment on February 1, 2017; and

(B)be exercisable through and including the day immediately preceding the tenth anniversary of the Grant Date (the “Expiration Date”).

In the event there is no Profit Sharing Program payout for either 2014 or 2015, the Option shall be immediately forfeited (regardless of whether there is a Profit Sharing Program payout for 2016).

(v)Change in Exercisability and Exercise Period upon Termination of Employment. The exercisability of the Option and the exercise period set forth in Section 4(d)(iv) are subject to the following terms and conditions:

(A)Without Cause or For Good Reason. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate), the Pro Rata Option Portion of any Option Installment that is not exercisable at the time of such Termination of Employment (1) will vest and become exercisable, if applicable, under Section 4(d)(iv) of the LTIP in the same manner and to the same extent as if the Participant’s employment had continued and (2) the entire then exercisable portion of the

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Option, as applicable, shall be exercisable during the period: (I) beginning on the applicable Option Installment Vesting Date and (II) ending on the earlier of (x) the later of (i) the third anniversary of such Termination of Employment or (ii) the applicable Option Installment Vesting Date or (y) the Expiration Date. Upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason, any portion of the Option that is not exercisable at the time of such Termination of Employment, other than the Pro Rata Option Portion, shall be immediately forfeited.

“Pro Rata Option Portion” means, with respect to any Option Installment that is not exercisable at the time of a Participant’s Termination of Employment, the number of Shares covered by such Option Installment multiplied by a fraction (i) the numerator of which is the number of calendar months from the Grant Date to the date of such Termination of Employment, rounded up for any partial month and (ii) the denominator of which is twelve (12) for the First Option Installment, twenty-four (24) for the Second Option Installment, and thirty-six (36) for the Third Option Installment.⁸

(B)Voluntary Resignation. Upon a Participant’s Termination of Employment by reason of a voluntary resignation (other than for Good Reason or Retirement): (1) any portion of the Option that is not exercisable at the time of such Termination of Employment shall be immediately forfeited and (2) any portion of the Option that is exercisable at the time of such Termination of Employment shall remain exercisable until the earlier of (I) 90 days after such Termination of Employment or (II) the Expiration Date.

(C)Retirement. Subject to Section 4(d)(v)(F) below, upon a Participant’s Termination of Employment by reason of Retirement, the Pro Rata Option Portion of any Option Installment that is not exercisable at the time of such Termination of Employment (1) will vest and become exercisable, if applicable, under Section 4(d)(iv) of the LTIP in the same manner and to the same extent as if the Participant’s employment had continued and (2) the entire then exercisable portion of the Option shall be exercisable during the period: (I) beginning on the applicable Option Installment Vesting Date and (II) ending on the earlier of (x) the later of (i) the third anniversary of such Termination of Employment or (ii) the applicable Option Installment Vesting Date or (y) the Expiration Date. Pro Rata Option Portion has the meaning set forth in Section 2(a) above. Upon the Participant’s Termination of Employment by reason of Retirement, any portion of the Option that is not exercisable at the time of such termination, other than the Pro Rata Option Portion, shall be immediately forfeited.

(D) Death or Disability. Upon a Participant’s Termination of Employment due to death or Disability, any Option Installment that is not exercisable at the time of such Termination of Employment shall vest and become exercisable and the then exercisable portion of the Option shall be exercisable during the period: (1) beginning on the date of such Termination of Employment and (2) ending on the earlier of (I) the third anniversary of such Termination of Employment or (II) the Expiration Date.

(E) For Cause. Upon a Participant’s Termination of Employment by the

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8    If this formula results in any fractional Share, the Pro Rata Option Portion will be rounded up to the nearest whole Share.

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Company for Cause, any unexercised portion of the Option shall be immediately forfeited, including any portion that was then exercisable.

(F)Retirement-Eligible Participants Who Incur a Termination of Employment for Other Reasons. If a Participant who is eligible for Retirement is, or would be, terminated by the Company without Cause, such Participant shall be considered to have been terminated by the Company without Cause for purposes of the Agreement rather than having retired, but only if the Participant acknowledges that, absent Retirement, the Participant would have been terminated by the Company without Cause. If, however, the employment of a Participant who is eligible for Retirement is terminated by the Company for Cause, then regardless of whether the Participant is considered as a retiree for purposes of any other program, plan or policy of the Company, for purposes of the Agreement, the Participant’s employment shall be considered to have been terminated by the Company for Cause.

(G)Change in Control.Notwithstanding the foregoing and subject to Section 5 of the 2014 LTIP, upon a Participant’s Termination of Employment by the Company without Cause or by the Participant for Good Reason (including the Termination of Employment of the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate) on or after a Change in Control but prior to the second anniversary of such Change in Control, any Option Installment that is not exercisable at the time of such Termination of Employment shall vest and become exercisable, and the entire then exercisable portion of the Option shall be exercisable during the period (1) beginning on the date of such Termination of Employment and (2) ending on the earlier of (I) the third anniversary of such Termination of Employment or (II) the Expiration Date.

5.Potential Reduction in Payments Due to Excise Tax. In the event that a Participant becomes entitled to benefits under the 2014 LTIP, then such benefits, together with any payment or consideration in the nature of value or compensation to or for the Participant’s benefit under any other agreement with or plan of Delta, shall be subject to reduction as set forth in Section 4(e) of the 2009 Delta Air Lines, Inc. Officer and Director Severance Plan, which relates to the excise tax under Section 4999 of the Code.

6.Definitions. For purposes of the 2014 LTIP, the following definitions are hereby modified as set forth below and will apply in lieu of the definitions set forth in the 2007 Performance Plan or as modified, as applicable.

(a)For purposes of the 2014 LTIP, “Good Reason” shall have the meaning set forth in the 2007 Performance Plan except the following will be ignored for purposes of determining whether a Participant has suffered a reduction that constitutes Good Reason under the 2014 LTIP: (i) any long-term award made to a Participant under the 2007 Performance Plan; (ii) any other equity-based awards or other incentive compensation awards made to a Participant by Delta (or any Affiliate or former Affiliate); and (iii) any retention payment or special travel benefits provided to a Participant as a result of his or her initial employment with Delta or any Affiliate.

(b)For purposes of the 2014 LTIP, “Retirement” means a Termination of Employment (other than for Cause or death) either: (i) on or after a Participant’s 62^nd birthday provided that such Participant has completed at least 5 years service since his or her most recent hire date with the Company (or an Affiliate or former Affiliate) or (ii) on or after a Participant’s 52^nd birthday provided that such Participant has completed at least 10 years service since his or her most recent hire date with the Company (or an Affiliate or former Affiliate).

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7.Clawback. Notwithstanding anything to the contrary in the 2014 LTIP and subject to further amendment of this Section 7 to the extent required to be in compliance with any applicable law or regulations or Delta’s internal clawback policy, as it may be amended from time to time, if the Committee determines that a vice president or more senior officer level Participant has engaged in fraud or misconduct that caused, in whole or in part, the need for a required restatement of Delta’s financial statements filed with the Securities and Exchange Commission, the Committee will review all incentive compensation awarded to or earned by the Participant, including, without limitation, any Award under the 2014 LTIP, with respect to fiscal periods materially affected by the restatement and may recover from the Participant all such incentive compensation to the extent that the Committee deems appropriate after taking into account the relevant facts and circumstances. Any recoupment hereunder may be in addition to any other remedies that may be available to Delta under applicable law, including, disciplinary action up to and including termination of employment.

8.Section 409A of the Code. To the extent required to be in compliance with Section 409A of the Code, and the regulations promulgated thereunder (together, “Section 409A”), notwithstanding any other provision of this Plan, (a) any payment or benefit to which a Participant is eligible under the 2014 LTIP, including a Participant who is a “specified employee” as defined in Section 409A, shall be adjusted or delayed and (b) any term of the 2014 LTIP may be adjusted, in such manner as to comply with Section 409A and maintain the intent of the 2014 LTIP to the maximum extent possible. More specifically, to the extent any payment provided to a Participant under the 2014 LTIP constitutes non excepted deferred compensation under Section 409A and the Participant is at the time of his termination of employment considered to be a “specified employee” pursuant to the Company’s policy for determining such employees, the payment of any such non excepted amount and the provision of such non excepted benefits will be delayed for six months following the Participant’s separation from service. Notwithstanding the foregoing, Delta shall not have any liability to any Participant or any other person if any payment is determined to constitute “nonqualified deferred compensation” within the meaning of Section 409A and does not satisfy the additional conditions applicable to nonqualified deferred compensation under Section 409A.

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EX-10.17

EXHIBIT 10.17

DELTA AIR LINES, INC.

2014 MANAGEMENT INCENTIVE PLAN

1.Purpose. The 2014 Management Incentive Plan (the “MIP”) is an annual incentive program sponsored by Delta Air Lines, Inc. (“Delta” or the “Company”) that is intended to closely: (a) link pay and performance by providing management employees with a compensation opportunity based on Delta achieving key business plan goals in 2014; and (b) align the interests of management employees with the Company’s other employees and stakeholders. The MIP is being adopted under, and is subject to the terms of, the Delta Air Lines, Inc. 2007 Performance Compensation Plan (the “2007 Plan”). Capitalized terms that are used but not defined in the MIP shall have the meaning ascribed to them in the 2007 Plan.

2.Plan Administration. (a) The Personnel & Compensation Committee of the Board of Directors (the “Committee”)shall be responsible for the general administration and interpretation of the MIP and for carrying out its provisions. The Committee shall have such powers as may be necessary to discharge its duties hereunder, including, without limitation, the following powers and duties, but subject to the terms of the MIP:

(i) authority to construe and interpret the terms of the MIP, and to determine eligibility, awards and the amount, manner and time of payment of any awards hereunder;

(ii) authority to prescribe forms and procedures for purposes of MIP participation and distribution of awards;

(iii) authority to adopt rules and regulations and to take such actions as it deems necessary or desirable for the proper administration of the MIP; and

(iv)authority at any time prior to a Change in Control to eliminate or reduce the actual payout to any Participant in the MIP.

(b) Any rule or decision by the Committee that is not inconsistent with the provisions of the MIP shall be conclusive and binding on all persons, and shall be given the maximum deference permitted by law.

(c)Notwithstanding anything contained in the 2007 Plan to the contrary, the Committee shall not have the authority to increase the actual payout to any Participant in the MIP.

3.Eligibility. All Delta employees worldwide who are officers, managing directors (grade 13), directors (grade 12), general managers (grade 11), grade 10 or grade 8 (other than employees who participate in a sales incentive plan or other major functional incentive plan, as may be in effect from time to time) are eligible to participate in the MIP (“Participants”).

4.MIP Awards.

(a)General. The MIP award (the “MIP Award”)each Participant receives, if any, will be based on: (i) the Participant’s Target MIP Award, as defined below; (ii) the level of achievement within each applicable performance measure;and (iii) the occurrence of a payout for 2014 under the Company’s broad-based employee profit sharing program (the “Profit Sharing Program”), as described below. Certain additional requirements will apply

1

to any Participant who is employed by the Company as an executive vice president or more senior officer of the Company (“Executive Officer Participant”), as discussed in Section 7(b) below.

(b)Performance Measures. The performance measures used will be one or more of financial (“Financial Performance”), operational (“Operational Performance”), revenue (“Revenue Performance”), leadership effectiveness (“Leadership Effectiveness Performance”) and individual performance (“Individual Performance”). Achievement under each performance measure may range from below threshold, at which there is no payout, to the maximum performance level, at which the payout will be greater than the target level, subject to Section 4(c) below.

(c)Interaction with Profit Sharing Program and Individual Performance Measure. If there is no payout under the Profit Sharing Program for 2014, (i) no amount will be paid with respect to Financial Performance to any Participant regardless of whether Delta meets or exceeds that performance measure and (ii) for general manager (grade 11) Participants and above, the actual MIP Award, if any, will not exceed such Participant’s Target MIP Award (as defined below). In addition, if a Participant’s performance under the Individual Performance Measure (applicable to Participants who are not officers) falls below the “meets expectations” performance rating, no amount will be paid with respect to Financial Performance, Operational Performance and/or Revenue Performance to such Participant regardless of whether Delta meets or exceeds those performance measures.

(d)Target MIP Awards. The Target MIP Award for each Participant will be expressed as a percentage of the Participant’s Annual Base Salary (the “Target MIP Award”) as determined by the Committee and will be communicated to Participants in such manner as the Committee deems appropriate. Subject to Section 8 below, “Annual Base Salary” means the Participant’s 2014 annual base salary as in effect on December 31, 2014.

5.Weighting of Performance Measures. Subject to Section 8 below, a percentage of each Participant’s Target MIP Award is allocated to one or more of Financial Performance, Operational Performance, Revenue Performance, Leadership Effectiveness Performance and/or Individual Performance based on the Participant’s employment level, as follows:

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Performance Measures and Weightings
Employment Level	% of Target MIP Award allocated to Financial Performance	% of Target MIP Award allocated to Operational Performance	% of Target MIP Award Allocated to Revenue Performance	% of Target MIP Award allocated to Leadership Effectiveness Performance	% of Target MIP Award allocated to Individual Performance
CEO	50%	25%	25%	0%	0%
President	50%	25%	25%	0%	0%
COO and CRO	50%	25%	25%	0%	0%
EVP	50%	25%	25%	0%	0%
CIO and SVP - ACS/TechOps	50%	25%	25%	0%	0%
SVP*	50%	25%	15%	10%	0%
VP*	50%	25%	15%	10%	0%
Managing Director (Grade 13)*	35%	15%	10%	0%	40%
Director (Grade 12)*	35%	15%	10%	0%	40%
General Manager (Grade 11)	25%	15%	10%	0%	50%
Grade 10	0%	0%	0%	0%	100%
Grade 8	0%	0%	0%	0%	100%

* Notwithstanding the weightings set forth above, the Committee has delegated to the Chief Executive Officer of the Company, the authority to reallocate up to an aggregate of (i) twenty percentage points for Senior Vice Presidents and Vice Presidents and (ii) ten percentage points for Managing Directors and Directors, of the Target MIP Award allocated to Financial Performance to one or both of the Operational Performance and Revenue Performance weightings.

6.The Performance Measures-Threshold, Target and Maximum Payout Levels. The Target MIP Award, and the amounts paid in connection with target levels of Financial, Operational, Revenue, Leadership Effectiveness, and Individual Performance, are based on the achievement of the target performance level with respect to each applicable performance measure (except that Financial Performance also requires a payout under the Profit Sharing Program for 2014). A Participant’s actual MIP Award may be greater or less than the target amount based on whether performance under one or more of the performance measures applicable to the Participant exceeds or is below target performance, subject to Section 4(c) above. This is explained in more detail below.

(a)Financial Performance Measures. The Financial Performance measures for 2014 are based on Delta’s Pre-Tax Income, as defined below. The following table describes the performance ranges and award payout levels for 2014 Financial Performance, subject to Section 4(c) above:

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	Threshold	Target	Maximum
% of Target Financial Performance Measure Paid	50%	100%	200%
Required 2014 Pre-Tax Income	$2,456 Million	$3,581 Million	$4,109 Million

Payouts will be straight-line interpolated when Pre-Tax Income results fall above Threshold and below Target or above Target and below Maximum; provided, however, for managing director (grade 13), director (grade 12) and general manager (grade 11) Participants only, if the Percentage Payout under the Profit Sharing Program for 2014 (as such term is defined therein) meets or exceeds 3.5%, payouts to such Participants based on Financial Performance will not be less than the Threshold amount regardless of whether the actual performance results fall below Threshold.

“Pre-Tax Income” will be the amount of Pre-Tax Income, if any, determined under the Profit Sharing Program for 2014.¹

(b)Operational Performance Measures. The Operational Performance measures for 2014 are based on both Delta and Delta Connection operational performance, with (i) Delta’s operational performance accounting for 75% of the measure and (ii) Delta Connection performance accounting for 25% of the measure. Delta’s Operational Performance is based on the number of times during 2014 that Delta meets or exceeds its monthly goals under the broad-based employee shared rewards program (the “Shared Rewards Program”). Delta Connection’s Operational Performance is based on the number of times during 2014 that the Delta Connection carriers meet or exceed their monthly operational goals for (x) controllable completion factor and (y) on-time performance (the “Delta Connection Goals”). The Delta Connection Goals and the methodology for determining whether these goals are met are described in Exhibit A hereto. The following table describes the performance ranges and award payout levels for 2014 Operational Performance, subject to Section 4(c) above:

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¹    The Profit Sharing Program for 2014 defines “Pre-Tax Income” as follows: for any calendar year, the Company’s consolidated pre-tax income calculated in accordance with Generally Accepted Accounting Principles in the United States and as reported in the Company’s public securities filings but excluding: (a) all asset write downs related to long term assets, (b) gains or losses with respect to employee equity securities, (c) gains or losses with respect to extraordinary, one-time or non-recurring events, and (d) expense accrued with respect to the profit sharing plan and the MIP.

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	Below Threshold	Threshold	Target	Maximum
Shared Rewards Program
% of Target Payout for this Performance Measure (75% Weighting)	0%	37.5%	75%	150%
Number of monthly Shared Rewards Program goals actually met during 2014	15 or less	16	21	26 or more
Delta Connection Goals
% of Target Payout for this Performance Measure (25% Weighting)	0%	12.5%	25%	50%
Number of Delta Connection Goals actually met during 2014	8 or less	9	14	19 or more

Payouts based on the Shared Rewards Program and Delta Connection Goals will be straight-line interpolated when actual performance results fall above Threshold and below Target or above Target and below Maximum.

(c)Revenue Performance Measures. The Revenue Performance measures for 2014 will be measured based on the comparison of Delta’s TRASM for the 2014 calendar year over the 2013 calendar year relative to the Industry Group Average TRASM for the 2014 calendar year over the 2013 calendar year. The following table describes the performance ranges and award payout levels for 2014 Revenue Performance, subject to Section 4(c) above:

	Threshold	Target	Maximum
% of Target Revenue Performance Measure Paid	50%	100%	200%
Delta's 2014 TRASM over 2013 TRASM relative to Industry Group Average TRASM for the same period	2013 TRASM minus 0.50% points	2013 TRASM	2013 TRASM + 0.5% points or more

Payouts based on Revenue Performance will be straight-line interpolated when actual performance results fall above Threshold and below Target or above Target and below Maximum; provided, however, if 2014 Financial Performance equals or exceeds the Maximum performance level, payouts based on Revenue Performance will not be less than the Target amount regardless of whether the actual performance results fall below Target.

“Available Seat Mile”means the consolidated scheduled and non-scheduled total number of seats available for transporting passengers during a reporting period multiplied by the total number of miles flown during that period.

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“Industry Group” means Alaska Air Group, Inc., AMR Corporation, JetBlue Airways Corporation, Southwest Airlines Co., United Continental Holdings, Inc., and US Airways Group, Inc.

“Industry Group Average TRASM” means the aggregate Total Operating Revenue for all members of the Industry Group divided by the aggregate Available Seat Miles of all members of the Industry Group.

“Total Operating Revenue” means, for Delta and each member of the Industry Group, the applicable company’s total operating revenue for a calendar year based on its regularly prepared and publicly available statements of operations prepared in accordance with accounting principles generally accepted in the United States of America.

In determining the Total Operating Revenue for Delta and each member of the Industry Group, the Committee shall make such adjustments with respect to any subject company as is necessary to ensure the results are comparable, including, without limitation, differences in accounting policies (for example, non-recurring adjustments to deferred revenue resulting from (i) initial application of accounting policies; (ii) the application of accounting policies to materially modified contracts; or (iii) significant accounting estimate changes associated with mergers, acquisitions, divestitures or fresh start accounting as a result of emergence from bankruptcy). Without limiting the generality of the foregoing, the Committee shall (i) make such determinations based on publicly audited financial statements filed by the subject company with the U.S. Securities and Exchange Commission and (ii) exclude from any calculation any item of gain, loss or expense to be extraordinary or unusual in nature or infrequent in occurrence.

“TRASM” means Total Operating Revenue divided by Available Seat Miles.

(d)Leadership Effectiveness Performance Measure. The Leadership Effectiveness Performance measure (applicable to Participants who are Vice Presidents or Senior Vice Presidents for 2014 will be based on an evaluation of whether a Participant has demonstrated leadership attributes and results during 2014 including, among other things, supporting diversity, providing talent management, meeting financial budget, improving employee engagement, and being a role model for the Rules of the Road. The performance ranges and award payout levels will be determined by the Committee, subject to Section 4(c) above.

(e)Individual Performance Measure. The Individual Performance measure (applicable to Participants who are not officers) is generally determined by each Participant’s annual performance evaluation at the end of 2014. The performance ranges and award payout levels will be determined by the Committee, subject to Section 4(c) above.

7.Timing of Award Payments.

(a)In General. Subject to Sections 7(b) and 8(a) below, any payouts to a Participant under the MIP for 2014 will be made in cash, as soon as practicable after (i) the Committee certifies the achievement of the required Financial Performance, Operational Performance and Revenue Performance results and (ii) where applicable, Leadership Effectiveness Performance results have been determined and an annual performance evaluation has been completed, but in no event later than March 15, 2015, unless it is administratively impracticable to do so, and such impracticability was unforeseeable at the end of 2014, in which case such payment shall be made as soon as administratively

6

practicable after March 15, 2015. Further, unless a payout for 2014 under the Profit Sharing Program occurs after March 15, 2015, any payout under the 2014 MIP will not be made prior to a payout for 2014 under the Profit Sharing Program; provided,however, if it is determined there will be no payout for 2014 under the Profit Sharing Program, any MIP Awards that are payable based on Operational Performance, Revenue Performance, Leadership Effectiveness Performance or Individual Performance will be paid as soon as practicable thereafter, but in no event later than March 15, 2015, unless it is administratively impracticable to do so, and such impracticability was unforeseeable at the end of 2014, in which case such payment shall be made as soon as administratively practicable after March 15, 2015.

(b)Executive Officer Participants. Payouts under the MIP to Participants who, as of December 31, 2014, are Executive Officer Participants (as such term is defined in Section 4(a) above) will be subject to the following terms and conditions:

(i)Payment in Restricted Stock. If there is no payout under the Profit Sharing Program for 2014, any payout under the MIP to an Executive Officer Participant will be made in shares of Restricted Stock rather than in cash, with the number of shares of Restricted Stock being equal to the result of the following formula (“MIP Restricted Stock”): A ÷ B, where²:

A =the amount of the payout to the Executive Officer Participant under the MIP had the payout been made in cash; and

B =the closing price of a Share on the New York Stock Exchange on the later of (1) the date that the Committee approves the payouts, if any, to the Executive Officer Participants under the MIP following the Committee’s certification of the achievement of the required performance measures as described in Section 7(a) and (2) the third business day following the date on which the Company publicly announces its annual financial results if this date is scheduled in the same month that the Committee approves such payouts, if any.

(ii)Lapsing of Restrictions; Forfeiture. Until the restrictions imposed by this Section 7(b)(ii) (the “Restrictions”) have lapsed pursuant to the terms below, an Executive Officer Participant will not be permitted to sell, exchange, assign, transfer, pledge or otherwise dispose of the MIP Restricted Stock and the MIP Restricted Stock will be subject to forfeiture as set forth below.

(A)The Restrictions shall lapse and be of no further force or effect on the earlier of the date (1) there is a payout under the Profit Sharing Program unless, prior to such payout, the Executive Officer Participant incurs a Disqualifying Termination of Employment or (2) an Executive Officer Participant incurs a Qualifying Termination of Employment. The MIP Restricted Stock will be immediately forfeited if, prior to the lapsing of the Restrictions, the Executive Officer Participant incurs a Disqualifying Termination of Employment.

^{______________________________________________} 

²    If this formula results in any fractional share, the MIP Restricted Stock will be rounded up to the next highest ten shares.

7

(B)“Disqualifying Termination of Employment” means an Executive Officer Participant’s Termination of Employment by the Company for Cause.

(C)    “Qualifying Termination of Employment” means an Executive Officer Participant’s Termination of Employment (1) by the Company without Cause or (2) due to death or Disability.

(D)For purposes of this Section 7(b)(ii), if an Executive Officer Participant incurs a Termination of Employment by reason of (1) a voluntary resignation (including the Termination of Employment by the Participant if he is employed by an Affiliate at the time the Company sells or otherwise divests itself of such Affiliate) or (2) Retirement, the Restrictions shall lapse and be of no further force or effect on the date there is a payout under the Profit Sharing Program as if such Executive Officer Participant’s employment had continued through such date.

(E)For purposes of the MIP, “Retirement” means a Termination of Employment (other than for Cause or death) either: (1) on or after a Participant’s 62^nd birthday provided that such Participant has completed at least 5 years service since his or her most recent hire date with the Company (or an Affiliate or former Affiliate) or (2) on or after a Participant’s 52^nd birthday provided that such Participant has completed at least 10 years service since his or her most recent hire date with the Company (or an Affiliate or former Affiliate).

(iii)Dividends. In the event a cash dividend shall be paid in respect of Shares at a time the Restrictions on the MIP Restricted Stock have not lapsed, the Participant shall be eligible to receive the dividend upon the lapse of the Restrictions. The Restrictions shall apply to any such dividend.

(iv)2007 Plan; Written Notice. The MIP Restricted Stock will otherwise be subject to the terms of the 2007 Plan. In the event any Executive Officer Participant’s MIP Award is converted to MIP Restricted Stock, such Participant will receive a written notice of such conversion with the details thereof as soon as practicable after the MIP Payment Date.

8.Change in Employment Status.

(a)Termination of Employment.

(i)A Termination Event in 2014--General. Except as expressly set forth in this Section 8, in the event a Participant’s employment with Delta terminates for any reason prior to the end of the workday on December 31, 2014, such Participant will be ineligible for any award under the MIP. In other words, if a Participant is employed according to Company records through the end of the workday on December 31, 2014, the Participant will be eligible for any award earned under the MIP for 2014, including, if applicable, MIP Restricted Stock.

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(ii)Termination on or after January 1, 2015. Subject to Section 7(b) above, a Participant who incurs a Termination of Employment for any reason other than for Cause on or after January 1, 2015 will remain eligible for any unpaid MIP Award, which award will be paid according to the terms of Section 7(a) above. A Participant who is terminated by the Company for Cause on or after January 1, 2015 will forfeit any unpaid MIP Award.

(iii)Pro Rata MIP Payment.

(A)Disability or Retirement.This Section 8(a)(iii)(A) applies to any Participant who incurs a Termination of Employment prior to January 1, 2015 due to the Participant’s Disability or Retirement (as such term is defined in Section 7(b)(ii)(E)). Subject to the Participant’s execution of a waiver and release of claims in a form and manner satisfactory to the Company, such Participant will be eligible to receive a MIP Award based on an adjusted annual base salary amount, but otherwise in the same manner, to the same extent and at the same time as the Participant would have received such MIP Award if such Participant’s employment had continued through December 31, 2014 (i.e., based on achievement of applicable performance measures). The most recent annual performance evaluation prior to the Termination of Employment will generally apply to the Individual Performance measure, if any, applicable to the Participant. The Participant’s Annual Base Salary will be the result of the following formula: X × Y/12, where:

X = the Participant’s annual base salary as in effect as of the date of Termination of Employment; and

Y = the number of calendar months the Participant was actively employed by Delta during 2014 in a MIP-eligible position, rounded up for any partial month.³ 

(B)Termination of Employment Without Cause or Resulting in Benefits under the Severance Plan. This Section 8(a)(iii)(B) applies to any Participant who incurs a Termination of Employment prior to January 1, 2015 due to either (1) a Termination of Employment by the Company without Cause or (2) for any other reason that entitles such Participant to benefits under the Delta Air Lines, Inc. 2009 Officer and Director Severance Plan (the “Severance Plan”). Subject to the Participant’s execution of a waiver and release of claims in a form and manner satisfactory to the Company, such Participant will be eligible to receive a MIP Award based on an adjusted annual base salary amount, but otherwise in the same manner, to the same extent and at the same time as the Participant would have received such MIP Award if such Participant’s employment had continued through December 31, 2014 (i.e., based on achievement of applicable performance measures). The Participant’s Annual Base Salary will be determined in accordance with the formula set forth in Section 8(a)(iii)(A) above.

^{______________________________________________} 

³    For purposes of the MIP, one calendar month is calculated from the date of measurement to the same or closest numerical date occurring during the following month. For example, one calendar month from January 31, 2014 will elapse as of February 28, 2014, two months will elapse on March 31, 2014, and so on.

9

(C)Death. This Section 8(a)(iii)(C) applies to any Participant who incurs a Termination of Employment prior to January 1, 2015 due to the Participant’s death. The Participant’s estate will be eligible to receive a Pro Rata MIP Payment made in cash as soon as practicable after a Participant’s Termination of Employment, but in no event later than 2½ months following the end of the year in which the Termination of Employment occurs. “Pro Rata MIP Payment” means the result of the following formula: W × Z/12, where:

W = the Participant’s Target MIP Award; and

Z = the number of calendar months the Participant was actively employed by Delta during 2014 in a MIP-eligible position, rounded up for any partial month.

(b)Other Changes in Employment Status. The terms of this Section 8(b) shall apply to circumstances involving new hires, promotions, demotions, transfers or leaves of absence during 2014. After a Participant’s Target MIP Award is determined under this Section 8(b), the appropriate weighting of performance measures will apply to each portion of such Target MIP Award as set forth in Section 5 above. For partial calendar months, the change in employment status will be considered effective as of the 1^st day of the month in which there is a change in status; provided, however, in the event that a Participant was (i) on a Disability leave of absence for a period of less than one calendar month during 2014 and (ii) actively at work for at least one full day during such calendar month, the Participant will be deemed to have been employed in a MIP-eligible position for the entire calendar month. The end of year annual performance evaluation will apply to any Individual Performance measure applicable to the Participant unless the Participant is no longer subject to the such evaluation process after the change in employment status, in which case the most recent annual performance evaluation will apply. Any MIP Awards payable under this Section 8(b) will be paid at the same time and in the same manner as such awards are paid to active Participants, subject to Section 7(b) above.

(i)New Hires. With respect to any individual who becomes employed by Delta as a grade 8 or any more senior MIP-eligible position during 2014 but after January 1, 2014, such individual will be a Participant in the MIP and will be eligible to receive an award under the MIP for 2014; provided, that such Participant’s Annual Base Salary will be the result of the following formula: X × Y/12, where:

X = the Participant’s annual base salary as of December 31, 2014; and

Y = the number of calendar months the Participant was actively employed by Delta in a MIP-eligible position during 2014, rounded up for any partial month.

(ii)Promotions.Participants who are either promoted into a MIP-eligible job level or promoted into a higher level of MIP participation during 2014 will have their Target MIP Award calculated based on their annual base salary at each MIP-eligible job level (measured as of the date immediately prior to the date the promotion is considered effective for purposes of the MIP, if applicable, as described in the first paragraph of Section 8(b) above, and as of December 31, 2014) and the

10

number of calendar months they were employed in each such capacity, multiplied by the relevant total target award percentage applicable to their position or positions during the relevant period.

(iii)Demotions. Participants who are either demoted to a position that is not eligible to participate in the MIP or demoted to a lower level of MIP participation during 2014 will have their Target MIP Award calculated based on their annual base salary at each MIP-eligible job level (measured as of the date immediately prior to the date the demotion is considered effective for purposes of the MIP, as described in the first paragraph of Section 8(b) above, and, if applicable, as of December 31, 2014) and the number of calendar months they were employed in each such capacity, multiplied by the relevant total target award percentage applicable to their position or positions during the relevant period.

(iv)Transfers and Leaves of Absence. In the event that during 2014 a Participant (A) transfers employment from Delta to a Delta subsidiary or Affiliate that does not participate in the MIP or the Delta Community Credit Union or (B) goes on any type of leave at any time during 2014, the Participant will have his Target MIP Award calculated based on his annual base salary (measured as of the date immediately prior to the date the transfer or leave is considered effective for purposes of the MIP) and the number of calendar months he was employed in a MIP-eligible position during 2014, multiplied by the relevant total target award percentage applicable to his MIP-eligible position.

(v)Military Leave. In the event that at any time during 2014 a Participant is on a Military Leave of Absence, his or her Annual Base Salary shall be equal to the aggregate annual base salary the Participant received from Delta during 2014 plus any amount of base salary such Participant would have received had he or she been actively employed by Delta in any corresponding MIP-eligible position during such leave. “Military Leave of Absence” means a Participant’s absence from his or her position of employment at any time during 2014 because of service in the uniformed services, as defined under the Uniformed Services Employment and Reemployment Rights Act of 1994, as amended (“USERRA”); provided, that a Participant must provide the Company appropriate evidence that his or her absence was due to service in the uniformed services and the period of such service in order to be considered to be on a Military Leave of Absence for purposes of the MIP. For purposes of the MIP, any Participant who is absent due to military service (according to Delta’s records) as of December 31, 2014 and has been on such leave for a cumulative period (during the period he or she has been employed by Delta) of five years or less, will be presumed to be on a Military Leave of Absence. Any Participant who is similarly absent due to military service (based on Delta’s records) and who has been on such leave for a period of more than five years will not be considered to be on a Military Leave of Absence until he or she provides appropriate evidence that he or she is entitled to an exception to the five-year limit on uniformed service as set forth in USERRA.

9.Treatment of Payments Under Benefit Plans or Programs. MIP payments, which for an Executive Officer Participant who receives MIP Restricted Stock means the amount of the payout to the Executive Officer Participant under the MIP had the payout been made in cash, will be considered as earnings under any benefit plan or program sponsored by Delta only to the extent such payments are included as earnings under the terms of the specific plan

11

or program; provided, however, that any MIP payment made to an Executive Officer Participant in MIP Restricted Stock will be considered as earnings only for purposes of the Company’s restoration payment program, as in effect from time to time. If such payments are included, unless otherwise provided in such plan or program, participants will be eligible to contribute amounts paid under the MIP into such plans in the same manner and to the same extent as their ordinary compensation and any amounts so contributed will be subject to any applicable Company contributions and/or matches. Notwithstanding anything to the contrary in this Section 9 and except as otherwise provided under the terms of any defined contribution plan sponsored by the Company, any MIP payment received in connection with a Termination of Employment shall not be considered earnings under any benefit plan or program sponsored by Delta.

10.Effective Date. The MIP will become effective as of January 1, 2014; provided however, if on or before the date the Committee adopts the MIP any employee who would otherwise have participated in the MIP is informed that his or her employment will be terminated by the Company without Cause, any severance such employee is entitled to receive will be calculated based on the 2013 Management Incentive Plan as in effect as of December 31, 2013.

11.Amendment. Except as otherwise expressly set forth in this Section and Section 14, the terms of Section 14 of the 2007 Plan shall apply to any amendment or termination of the MIP. In addition, the terms applicable to any Participant will be subject in their entirety to the terms of any offer letter or other document to which the Participant has agreed. The terms of such offer letter or other document, if contrary to the terms of the MIP, shall govern the rights of the corresponding Participant.

12.Fractions. Any calculation under the MIP that results in a fractional amount will be rounded up to two decimal points.

13.Section 409A of the Code. Notwithstanding anything to the contrary in the MIP, to the extent that any amount paid hereunder in connection with a Termination of Employment constitutes deferred compensation under Section 409A of the Internal Revenue Code of 1986, as amended, and the regulations promulgated thereunder (together, “Section 409A”) and is paid to a “specified employee” as defined in Section 409A, the payment of such amount will be delayed for six months.

14.Clawback. Notwithstanding anything to the contrary in the MIP and subject to further amendment of this Section 14 to the extent required to be in compliance with any applicable law or regulation or Delta’s internal clawback policy, as it may be amended from time to time, if the Committee determines that a vice president or more senior officer level Participant has engaged in fraud or misconduct that caused, in whole or in part, the need for a required restatement of Delta’s financial statements filed with the Securities and Exchange Commission, the Committee will review all incentive compensation awarded to or earned by such Participant, including, without limitation, any MIP Award, with respect to fiscal periods materially affected by the restatement and may recover from the Participant all such incentive compensation to the extent that the Committee deems appropriate after taking into account the relevant facts and circumstances. Any recoupment hereunder may be in addition to any other remedies that may be available to Delta under applicable law, including, disciplinary action up to and including termination of employment.

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EXHIBIT A-DELTA CONNECTION GOALS:

Delta Connection’s Operational Performance will be based on the number of times during 2014 that the group of Delta Connection carriers meets or exceeds its monthly operational goals for controllable completion factor and on-time arrival performance (the “Delta Connection Goals”). The 24 monthly Delta Connection Goals are included on the following tables:

Month in 2014	Controllable Completion Factor 2014 Goal	On-Time Arrival Performance 2014 Goal
January	99.4%	81.6%
February	99.4%	82.0%
March	99.4%	81.6%
April	99.4%	83.5%
May	99.5%	83.9%
June	99.3%	79.2%
July	99.3%	78.4%
August	99.4%	81.5%
September	99.6%	85.0%
October	99.6%	84.7%
November	99.6%	84.8%
December	99.5%	77.2%
Total	99.5%	82.0%

A. The primary source of reported metrics used to calculate performance will be each Delta Connection carrier’s data which flows into Delta’s data warehouse.

B. All domestic and international Delta Connection carrier system operations subject to capacity purchase agreements and/or revenue proration agreements will be included in the performance measures, including the operations of Chautauqua, Compass, ExpressJet, GoJet, Endeavor Air, Shuttle America and SkyWest, but excluding any revenue proration operations with respect to which passenger reservations are not reflected on Delta’s reservations system (the “Delta Connection Program”). In the event that a carrier enters or leaves the Delta Connection Program, that carrier’s operations will be included or excluded from the performance measures as applicable.

C. The monthly calculation for completion factor will be as follows:

1. Add all Delta Connection scheduled system operations for the month.

2. Add all Delta Connection system completed flights for the month (including flights canceled by one carrier and covered by another via an extra section, which also includes flights changed to Delta aircraft).

3. Divide the result of C.2 by the result of C.1 for a combined Delta Connection system completion factor.

D. The monthly calculation for on-time performance will be as follows:

1. Add all Delta Connection completed system operations for the month.

2. Add all Delta Connection system on time operations for the month. On time operations are defined as the number of flights that arrive at the scheduled destination within 15 minutes of the scheduled arrival time.

3. Divide the result of D.2 by the result of D.1 for a combined Delta Connection system on-time performance measure.

E. All calculations will be performed and validated by Delta Connection Operations.

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EX-12.1

Exhibit 12.1

Delta Air Lines, Inc.

Computation of Ratio of Earnings to Fixed Charges

	Year Ended December 31,
(in millions, except for ratio data)	2013			2012			2011			2010			2009
Earnings (loss) before income taxes	$	2,527		$	1,025		$	769		$	608		$	(1,581	)
Add (deduct):
Fixed charges from below	947			1,116			1,202			1,315			1,416
Capitalized interest	(29		)	(21		)	(9		)	(6		)	(12		)
Earnings (loss) as adjusted	$	3,445		$	2,120		$	1,962		$	1,917		$	(177	)
Fixed charges:
Interest expense, including capitalized amounts and amortization of debt costs	$	891		$	1,044		$	1,122		$	1,226		$	1,290
Portion of rental expense representative of the interest factor	56			72			80			89			126
Fixed charges	$	947		$	1,116		$	1,202		$	1,315		$	1,416
Ratio of earnings to fixed charges(1)	3.64			1.90			1.63			1.46			(0.13		)

⁽¹⁾  For the year ended December 31, 2009, earnings were not sufficient to cover fixed charges by $1.6 billion.

The following are included in the results above:

	Year Ended December 31,
(in millions)	2013			2012			2011		2010		2009
Severance, impairment charges and other	$	424		$	452		$	242	$	227	$	132
MTM adjustments	(276		)	(27		)	26		—		—
Loss on extinguishment of debt	—			118			68		391		83
Merger-related items	—			—			—		233		275
Total	$	148		$	543		$	336	$	851	$	490

EX-21.1

EXHIBIT 21.1

SUBSIDIARIES OF DELTA AIR LINES, INC.

as of December 31, 2013

NAME OF SUBSIDIARY	JURISDICTION OF INCORPORATION OR ORGANIZATION
Aero Assurance Ltd.	Vermont
DAL Global Services, LLC	Delaware
Delta Private Jets, Inc.	Kentucky
Delta Sky Club, Inc.	Wisconsin
Epsilon Trading, LLC	Delaware
MIPC, LLC	Delaware
MLT Inc.	Minnesota
Monroe Energy, LLC	Delaware
New Sky, Ltd.	Bermuda

None of Delta's subsidiaries do business under any names other than their corporate names, with the following exception:

▪ MLT Inc. conducts business as MLT Vacations Inc.

Certain subsidiaries were omitted pursuant to Item 601(21)(ii) of the SEC’s Regulation S-K.

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1) Registration Statement No. 333-142424 on Form S-8 pertaining to Delta Air Lines, Inc. 2007 Performance Compensation Plan,

(2) Registration Statement No. 333-149308 on Form S-8 pertaining to Delta Air Lines, Inc. 2007 Performance Compensation Plan,

(3) Registration Statement No. 333-154818 on Form S-8 pertaining to Delta Air Lines, Inc. 2007 Performance Compensation Plan,

(4) Registration Statement No. 333-151060 on Form S-8 pertaining to Northwest Airlines Corporation 2007 Stock Incentive Plan, and

(5) Registration Statement No. 333-167811 on Form S-3 pertaining to Pass Through Certificates;

of our reports dated February 21, 2014, with respect to the consolidated financial statements of Delta Air Lines, Inc., and the effectiveness of internal control over financial reporting of Delta Air Lines, Inc. included in this Annual Report (Form 10-K) of Delta Air Lines, Inc. for the year ended December 31, 2013.

	/s/ Ernst & Young LLP
Atlanta, Georgia
February 21, 2014

EX-31.1

Exhibit 31.1

I, Richard H. Anderson, certify that:

1. I have reviewed this annual report on Form 10-K of Delta Air Lines, Inc. (“Delta”) for the fiscal year ended December 31, 2013;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of Delta as of, and for, the periods presented in this report;

4. Delta's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for Delta and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to Delta, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of Delta's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in Delta's internal control over financial reporting that occurred during Delta's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, Delta's internal control over financial reporting; and

5. Delta's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to Delta's auditors and the Audit Committee of Delta's Board of Directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect Delta's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in Delta's internal control over financial reporting.

February 21, 2014	/s/ Richard H. Anderson
	Richard H. Anderson
	Chief Executive Officer

EX-31.2

Exhibit 31.2

I, Paul A. Jacobson, certify that:

1. I have reviewed this annual report on Form 10-K of Delta Air Lines, Inc. (“Delta”) for the fiscal year ended December 31, 2013;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of Delta as of, and for, the periods presented in this report;

4. Delta's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for Delta and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to Delta, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of Delta's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in Delta's internal control over financial reporting that occurred during Delta's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, Delta's internal control over financial reporting; and

5. Delta's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to Delta's auditors and the Audit Committee of Delta's Board of Directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect Delta's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in Delta's internal control over financial reporting.

February 21, 2014	/s/ Paul A. Jacobson
	Paul A. Jacobson
	Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

February 21, 2014

Securities and Exchange Commission

450 Fifth Street, N.W.

Washington, D.C. 20549

Ladies and Gentlemen:

     The certifications set forth below are hereby submitted to the Securities and Exchange Commission pursuant to, and solely for the purpose of complying with, Section 1350 of Chapter 63 of Title 18 of the United States Code in connection with the filing on the date hereof with the Securities and Exchange Commission of the annual report on Form 10-K of Delta Air Lines, Inc. (“Delta”) for the fiscal year ended December 31, 2013 (the “Report”).

     Each of the undersigned, the Chief Executive Officer and the Executive Vice President and Chief Financial Officer, respectively, of Delta, hereby certifies that, as of the end of the period covered by the Report:

1. such Report fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and

2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Delta.

/s/ Richard H. Anderson  

Richard H. Anderson 

Chief Executive Officer 

/s/ Paul A. Jacobson

Paul A. Jacobson

Executive Vice President and Chief Financial Officer

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Income Tax Benefit (Provision)

Our income tax benefit (provision) consisted of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Current tax benefit (provision):
Federal	$	24		$	—		$	91
State and local	(3		)	15			(6		)
International	1			(14		)	(2		)
Deferred tax provision:
Federal	7,197			(4		)	2
State and local	794			(13		)	—
Income tax benefit (provision)	$	8,013		$	(16	)	$	85

Effective Income Tax Rate Reconciliation

The following table presents the principal reasons for the difference between the effective tax rate and the U.S. federal statutory income tax rate:

	Year Ended December 31,
	2013		2012		2011
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State taxes	3.0		3.3		3.4
Other	(0.4	)	4.0		(3.7	)
	37.6		42.3		34.7
Decrease in valuation allowance	(367.5	)	(40.8	)	(45.7	)
Income tax allocation	12.7		—		—
Effective income tax rate	(317.2	)%	1.5	%	(11.0	)%

Deferred Taxes

The following table shows significant components of our deferred tax assets and liabilities:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Net operating loss carryforwards	$	6,024		$	6,414
Pension, postretirement and other benefits	4,982			6,415
AMT credit carryforward	378			402
Deferred revenue	1,965			2,133
Other	698			881
Valuation allowance	(177		)	(10,963		)
Total deferred tax assets	$	13,870		$	5,282
Deferred tax liabilities:
Depreciation	$	4,799		$	4,851
Intangible assets	1,704			1,730
Other	639			285
Total deferred tax liabilities	$	7,142		$	6,866

The following table shows the current and noncurrent deferred tax assets (liabilities):

	December 31,
(in millions)	2013		2012
Current deferred tax assets, net	$	1,736	$	463
Noncurrent deferred tax assets (liabilities), net	4,992		(2,047		)
Total deferred tax assets (liabilities), net	$	6,728	$	(1,584	)

Valuation Allowance

The following table shows the balance of our valuation allowance and the associated activity:

(in millions)	2013			2012			2011
Valuation allowance at beginning of period	$	10,963		$	10,705		$	9,632
Income tax provision	(975		)	(432		)	(351		)
Other comprehensive income tax benefit	(1,186		)	690			1,241
Release(1)	(8,310		)	—			—
Other	(315		)	—			183
Valuation allowance at end of period(2)	$	177		$	10,963		$	10,705

⁽¹⁾  In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.

⁽²⁾  At December 31, 2013, 2012 and 2011, $13 million, $3.1 billion and $2.5 billion of deferred income tax expense was recorded in AOCI on our Consolidated Balance Sheets, respectively.

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Derivatives and Risk Management (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, Collateral, Obligation to Return Cash	$ (65)	$ (62)

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Oil Refinery (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Combinations [Abstract]
Business Acquisition, Date of Acquisition Agreement									Jun. 22, 2012
Business Acquisition, Cost of Acquired Entity, Purchase Price					$ 180					$ 180
Grants Receivable					30					30
Total Operating Revenue	$ 9,076	$ 10,490	$ 9,707	$ 8,500	$ 8,602	$ 9,923	$ 9,732	$ 8,413	$ 37,773	$ 36,670	$ 35,115

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Commitments and Contingencies (Details) (Capital Addition Purchase Commitments [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Capital Addition Purchase Commitments [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Aircraft Purchase Commitments, Due in 2014	$ 1,585
Aircraft Purchase Commitments, Due in 2015	1,215
Aircraft Purchase Commitments, Due in 2016	1,700
Aircraft Purchase Commitments, Due in 2017	1,495
Aircraft Purchase Commitments, Due in 2018	450
Aircraft Purchase Commitments, Due after 2018	2,700
Aircraft Purchase Commitments, Total	$ 9,145

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JFK Redevelopment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
JFK Redevelopment [Abstract]
Estimated Cost Of Project	$ 180
Special Project Bonds Face Amount	800
Term of agreement to sublease space	33
Construction in Progress, Gross	675
Construction Payable	$ 646

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Employee Benefit Plans (Details 3)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.01%	[1],[2]	4.11%	[1],[2]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	9.00%
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.10%	[2]	4.95%	[2]	5.70%	[2]
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.00%	[2],[3]	4.63%	[2],[3]	5.55%	[2],[3]
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year	7.00%	[2],[4]	7.00%	[2],[4]	7.00%	[2],[4]
Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	4.13%	[2]	4.88%	[2]	5.63%	[2]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	8.94%	[2]	8.94%	[2]	8.93%	[2]

[1] (1) Our 2013 and 2012 benefit obligations are measured using a mortality table projected to 2017 and 2016, respectively.

[2] (2) Future compensation levels do not impact our frozen defined benefit pension plans or other postretirement plans and impact only a small portion of our other postemployment liability.

[3] (4) Our assumptions reflect various remeasurements of certain portions of our obligations and represent the weighted average of the assumptions used for each measurement date.

[4] Assumed healthcare cost trend rate at December 31, 2013 is assumed to decline gradually to 5.00% by 2022 and remain level thereafter.

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Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Ownership Interest	50.00%
Accumulated Depreciation and Amortization	$ (7,792,000,000)	$ (6,656,000,000)
Amortization of Capitalized Computer Software	110,000,000	76,000,000	64,000,000
Net Book Value of Capitalized Computer Software	383,000,000	344,000,000
Goodwill	9,794,000,000	9,794,000,000
Identifiable intangibles, net of accumulated amortization	4,658,000,000	4,679,000,000
Depreciation, Nonproduction	1,500,000,000	1,400,000,000	1,400,000,000
Advertising Expense	222,000,000	235,000,000	214,000,000
Flight and Ground Equipment Under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Long-Lived Assets, Estimated Useful Lives	Shorter of lease term or estimated useful life
Accumulated Depreciation and Amortization	$ 657,000,000	$ 653,000,000
Minimum [Member]
Property, Plant and Equipment [Line Items]
Long-Lived Assets, Estimated Useful Lives	3
Maximum [Member]
Property, Plant and Equipment [Line Items]
Long-Lived Assets, Estimated Useful Lives	7
Maximum [Member]
Property, Plant and Equipment [Line Items]
Spare Parts Residual Value	10.00%
Minimum [Member]
Property, Plant and Equipment [Line Items]
Spare Parts Residual Value	5.00%
Future revenue increase [Member]
Property, Plant and Equipment [Line Items]
Revenue Recognition, Multiple-deliverable Arrangements, Allocation to Specific Unit of Accounting, Effect of Changes, Selling Price	100
Current period change [Member]
Property, Plant and Equipment [Line Items]
Revenue Recognition, Multiple-deliverable Arrangements, Allocation to Specific Unit of Accounting, Effect of Changes, Selling Price	10

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Derivatives and Risk Management (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Price Risk Derivatives [Table Text Block]

The following table shows the impact of fuel hedge losses (gains) for both designated and undesignated contracts on aircraft fuel and related taxes:

	Year Ended December 31,
(in millions)	2013			2012			2011
Airline segment	$	(444	)	$	81		$	(187	)
Refinery Segment	(49		)	—			—
Effective portion reclassified from AOCI to earnings	—			(15		)	(233		)
(Gains) losses recorded in aircraft fuel and related taxes	$	(493	)	$	66		$	(420	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Hedge Position as of December 31, 2013

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	477	U.S. dollars	May 2019	$	—	$	—	$	(17	)	$	(26	)	$	(43	)
Interest rate contracts (fair value hedges)	$	445	U.S. dollars	August 2022	—		—		(2		)	(22		)	(24		)
Foreign currency exchange contracts	120,915		Japanese yen	August 2016	157		100		—			—			257
	438		Canadian dollars
Not designated as hedges
Fuel hedge contracts	4,077		gallons - crude oil, diesel and jet fuel	March 2015	428		29		(127		)	(16		)	314
Total derivative contracts					$	585	$	129	$	(146	)	$	(64	)	$	504

Hedge Position as of December 31, 2012

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	740	U.S. dollars	May 2019	$	—	$	—	$	(22	)	$	(48	)	$	(70	)
Interest rate contracts (fair value hedges)	$	469	U.S. dollars	August 2022	—		6		(2		)	—			4
Foreign currency exchange contracts	119,277		Japanese yen	December 2015	62		63		(1		)	(1		)	123
	430		Canadian dollars
Not designated as hedges
Fuel contracts	1,792		gallons - heating oil, crude oil and jet fuel	December 2013	511		—		(262		)	—			249
Total derivative contracts					$	573	$	69	$	(287	)	$	(49	)	$	306

Offsetting Assets and Liabilities

We have master netting arrangements with all of our counterparties giving us the right of setoff. We have elected not to offset the fair value positions recorded on our Consolidated Balance Sheets. The following table shows the potential net fair value positions had we elected to offset.

(in millions)	Prepaid Expenses and Other		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, Net
December 31, 2013
Net derivative contracts	$	456	$	116	$	(19	)	$	(49	)	$	504
December 31, 2012
Net derivative contracts	$	320	$	69	$	(34	)	$	(49	)	$	306

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

Gains (losses) related to our designated hedge contracts, including those previously designated as accounting hedges, are as follows:

	Effective Portion Reclassified from AOCI to Earnings								Effective Portion Recognized in Other Comprehensive Income (Loss)
	Year Ended December 31,
(in millions)	2013		2012			2011			2013		2012			2011
Fuel hedge contracts	$	—	$	15		$	233		$	—	$	(15	)	$	(166	)
Interest rate contracts	—		(5		)	—			28		14			(8		)
Foreign currency exchange contracts	135		(25		)	(61		)	133		212			7
Total designated	$	135	$	(15	)	$	172		$	161	$	211		$	(167	)

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Employee Benefit Plans (Details 4) (United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract]
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	$ 1
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	(1)
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	15
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	$ (25)

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Commitments and Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Unrecorded Unconditional Purchase Obligation [Line Items]
Contract carriers expiration dates	2016 to 2022
Terms Of Aircraft Lease	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
Rate Of Interest On The Equity To Be Paid On Exercising Put Right	10.00%
Capital Addition Purchase Commitments [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Aircraft Purchase Commitments, Total	$ 9,145
B 737 900ER [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required	88
A321-200 [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required	30
CRJ 900 [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required	28
B-787-8 aircraft [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required	18
A330-300 [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required	10
B 717 200 aircraft [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Other Aircraft Commitments	88
Number of Aircraft Delivered	13
Shuttle America [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Contract carriers expiration dates	January 2016
Aircraft Put Right	294
Equity Amount To Be Paid On Exercise Of Put Right	52
Chautauqua [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Aircraft Put Right	119
Equity Amount To Be Paid On Exercise Of Put Right	$ 25

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Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009
Valuation Allowance [Line Items]
AMT Credit Carryforward	$ 378,000,000	$ 402,000,000
Operating Loss Carryforwards	15,300,000,000
Operating Loss Carryforwards, Expiration Dates	Jan. 01, 2023
Valuation Allowance	177,000,000	10,963,000,000
Income Before Income Taxes	2,527,000,000	1,025,000,000	769,000,000
Income Tax Benefit (Provision)	(8,013,000,000)	16,000,000	(85,000,000)
Non Cash Income Tax Expense Recorded In Other Comprehensive Income				(321,000,000)
Accumulated Other Comprehensive Income Valuation Allowance Net Of Tax	13,000,000	3,100,000,000	2,500,000,000
Income tax expense related to tax allocation	321,000,000
Deferred Income Taxes	1,900,000,000
Unrecognized Tax Benefits	37,000,000	44,000,000	22,000,000
Capital Loss Carryforward [Member]
Valuation Allowance [Line Items]
Valuation Allowance	107,000,000
Valuation Allowance, Operating Loss Carryforwards [Member]
Valuation Allowance [Line Items]
Valuation Allowance	70,000,000
Release of tax valuation allowance [Member]
Valuation Allowance [Line Items]
Income Tax Benefit (Provision)	$ 8,300,000,000

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Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross Carrying Amount	$ 976	$ 976
Accumulated Amortization	(738)	(670)
Marketing agreements [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross Carrying Amount	730	730
Accumulated Amortization	(602)	(545)
Contracts [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross Carrying Amount	193	193
Accumulated Amortization	(83)	(72)
Other [Member]
Definite-Lived Intangible Assets [Line Items]
Definite-Lived Intangible Assets, Gross Carrying Amount	53	53
Accumulated Amortization	$ (53)	$ (53)

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Employee Benefit Plans (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Pension and Other Postretirement Defined Benefit Plans, Liabilities [Abstract]
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	$ (12,392)	$ (16,005)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	(5,300)	(8,200)
United States Pension Plans of US Entity, Defined Benefit [Member]
Pension and Other Postretirement Defined Benefit Plans, Liabilities [Abstract]
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	(22)	(24)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(10,101)	(13,269)
Pension and Other Postretirement Defined Benefit Plans, Liabilities	(10,123)	(13,293)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	(5,349)	(7,958)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	0	0
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax	(5,349)	(7,958)
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Pension and Other Postretirement Defined Benefit Plans, Liabilities [Abstract]
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	(139)	(132)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(2,023)	(2,446)
Pension and Other Postretirement Defined Benefit Plans, Liabilities	(2,162)	(2,578)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	(103)	(473)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	161	187
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax	$ 58	$ (286)

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Income Taxes (Details 1)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Rate	Dec. 31, 2012	Dec. 31, 2012 Rate	Dec. 31, 2011 Rate	Dec. 31, 2011
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%	35.00%	35.00%	35.00%
State Taxes	3.00%	3.00%	3.30%	3.30%	3.40%	3.40%
Other	(0.40%)	(0.40%)	4.00%	4.00%	(3.70%)	(3.70%)
Effective Income Tax Rate, Continuing Operations	37.60%	(317.20%)	42.30%	1.50%	(11.00%)	34.70%
Decrease in Valuation Allowance	(367.50%)	(367.50%)	(40.80%)	(40.80%)	(45.70%)	(45.70%)
Income Tax Allocation	12.70%	12.70%	0.00%	0.00%	0.00%	0.00%

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Employee Benefit Plans (Details 6)	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	100.00%
Defined Benefit Plan, Debt Securities	100.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	23.00%
Defined Benefit Plan, Debt Securities	12.00%
Domestic equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	21.00%
Defined Benefit Plan, Debt Securities	14.00%
Non US developed equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	20.00%
Defined Benefit Plan, Debt Securities	23.00%
Alternative investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	19.00%
Defined Benefit Plan, Debt Securities	21.00%
Non US emerging equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	6.00%
Defined Benefit Plan, Debt Securities	6.00%
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	5.00%
Defined Benefit Plan, Debt Securities	6.00%
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	5.00%
Defined Benefit Plan, Debt Securities	14.00%
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities	1.00%
Defined Benefit Plan, Debt Securities	4.00%

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Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Components of Deferred Tax Assets [Abstract]
Net Operating Loss Carryforwards	$ 6,024	$ 6,414
Pension, Postretirement and Other Benefits	4,982	6,415
AMT Credit Carryforward	378	402
Deferred Revenue	1,965	2,133
Other	698	881
Valuation Allowance	(177)	(10,963)
Deferred Tax Assets, Net of Valuation Allowance	13,870	5,282
Components of Deferred Tax Liabilities [Abstract]
Depreciation	4,799	4,851
Intangible Assets	1,704	1,730
Other	639	285
Total Deferred Tax Liabilities	7,142	6,866
Deferred Tax Assets, Net, Classification [Abstract]
Deferred income taxes, net	1,736	463
Deferred income taxes, net	4,992	0
Deferred income taxes, net	0	(2,047)
Deferred Tax Assets, Net	$ 6,728	$ (1,584)

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Employee Benefit Plans (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 0	$ 0	$ 0
Defined Benefit Plan, Interest Cost	861	930	969
Defined Benefit Plan, Expected Return on Plan Assets	(734)	(705)	(724)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	0	0
Defined Benefit Plan, Amortization of Gains (Losses)	221	143	55
Defined Benefit Plan, Recognized Net (Gain) Loss Due to Settlements	6	0	0
Defined Benefit Plan, Other Costs	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	354	368	300
Defined Contribution Plan, Cost Recognized	490	426	377
Defined Benefit Plan Cost Benefit	844	794	677
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	49	56	52
Defined Benefit Plan, Interest Cost	143	164	180
Defined Benefit Plan, Expected Return on Plan Assets	(84)	(77)	(90)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(26)	(21)	(3)
Defined Benefit Plan, Amortization of Gains (Losses)	25	23	(11)
Defined Benefit Plan, Recognized Net (Gain) Loss Due to Settlements	0	0	0
Defined Benefit Plan, Other Costs	0	116	0
Defined Benefit Plan, Net Periodic Benefit Cost	107	261	128
Defined Contribution Plan, Cost Recognized	0	0	0
Defined Benefit Plan Cost Benefit	$ 107	$ 261	$ 128

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Commitments and Contingencies (Details 1) (Airline Capacity Purchase Arrangements [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Airline Capacity Purchase Arrangements [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Aircraft Purchase Commitments, Due in 2014	$ 2,110	[1]
Aircraft Purchase Commitments, Due in 2015	2,040	[1]
Aircraft Purchase Commitments, Due in 2016	1,780	[1]
Aircraft Purchase Commitments, Due in 2017	1,560	[1]
Aircraft Purchase Commitments, Due in 2018	1,320	[1]
Aircraft Purchase Commitments, Due after 2018	1,930	[1]
Aircraft Purchase Commitments, Total	$ 10,740	[1]

[1] These amounts exclude Contract Carrier payments accounted for as operating leases of aircraft, which are described in Note 9. The contingencies described below under “Contingencies Related to Termination of Contract Carrier Agreements” are also excluded from this table.

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Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

EARNINGS PER SHARE

We calculate basic earnings per share by dividing the net income by the weighted average number of common shares outstanding, excluding restricted shares. The following table shows our computation of basic and diluted earnings per share:

	Year Ended December 31,
(in millions, except per share data)	2013		2012		2011
Net income	$	10,540	$	1,009	$	854
Basic weighted average shares outstanding	849		845		838
Dilutive effects of share based awards	9		5		6
Diluted weighted average shares outstanding	858		850		844
Basic earnings per share	$	12.41	$	1.20	$	1.02
Diluted earnings per share	$	12.29	$	1.19	$	1.01
Antidilutive common stock equivalents excluded from diluted earnings per share	8		18		17

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Fair Value Measurements (Narrative) (Details)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]
Fair Value Measurements, Significant Assumptions	Volatilities used in these valuations ranged from 9% to 25% depending on the maturity dates, underlying commodities and strike prices of the option contracts.

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Restructuring and Other Items (Tables)

12 Months Ended

Dec. 31, 2013

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Related Costs [Table Text Block]

The following table shows amounts recorded in restructuring and other items on our Consolidated Statements of Operations:

	Year Ended December 31,
(in millions)	2013		2012			2011
Facilities, fleet and other	$	402	$	293		$	135
Severance and related costs	—		237			100
Routes and slots (See Note 6)	—		(78		)	7
Total restructuring and other items	$	402	$	452		$	242

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table shows the balances and activity for restructuring charges:

	Severance and Related Costs									Lease Restructuring
(in millions)	2013			2012			2011			2013			2012			2011
Liability at beginning of period	$	49		$	46		$	20		$	77		$	64		$	85
Additional costs and expenses	—			126			100			114			45			—
Other	(3		)	—			—			(5		)	—			—
Payments	(46		)	(123		)	(74		)	(18		)	(32		)	(21		)
Liability at end of period	$	—		$	49		$	46		$	168		$	77		$	64

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Employee Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Fair Value of Plan Assets period End	$ 9,880		$ 9,150
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Benefit Obligation Period Start	21,489	[1]	19,293
Defined Benefit Plan, Service Cost	0		0		0
Defined Benefit Plan, Interest Cost	861		930		969
Defined Benefit Plan, Actuarial Net (Gains) Losses	(2,212)		2,334
Defined Benefit Plan, Benefits Paid	(1,078)		(1,057)
Defined Benefit Plan, Contributions by Plan Participants	0		0
Defined Benefit Plan, Plan Amendments	0		0
Defined Benefit Plan, Special Termination Benefits	0		0
Defined Benefit Plan, Settlements, Benefit Obligation	0		(11)
Defined Benefit Plan, Benefit Obligation Period End	19,060	[1]	21,489	[1]	19,293
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Fair Value of Plan Assets Period Start	8,196		7,789
Defined Benefit Plan, Actual Return on Plan Assets	905		778
Defined Benefit Plan, Contributions by Employer	914		697
Defined Benefit Plan, Contributions by Plan Participants	0		0
Defined Benefit Plan, Benefits Paid	(1,078)		(1,057)
Defined Benefit Plan, Settlements, Plan Assets	0		(11)
Defined Benefit Plan, Fair Value of Plan Assets period End	8,937		8,196		7,789
Defined Benefit Plan, Funded Status of Plan [Abstract]
Defined Benefit Plan, Funded Status of Plan	(10,123)		(13,293)
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Benefit Obligation Period Start	3,582	[1]	3,570
Defined Benefit Plan, Service Cost	49		56		52
Defined Benefit Plan, Interest Cost	143		164		180
Defined Benefit Plan, Actuarial Net (Gains) Losses	(301)		147
Defined Benefit Plan, Benefits Paid	(313)		(310)
Defined Benefit Plan, Contributions by Plan Participants	45		58
Defined Benefit Plan, Plan Amendments	0		(219)
Defined Benefit Plan, Special Termination Benefits	0		116
Defined Benefit Plan, Settlements, Benefit Obligation	0		0
Defined Benefit Plan, Benefit Obligation Period End	3,205	[1]	3,582	[1]	3,570
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Fair Value of Plan Assets Period Start	1,004		972
Defined Benefit Plan, Actual Return on Plan Assets	129		134
Defined Benefit Plan, Contributions by Employer	191		222
Defined Benefit Plan, Contributions by Plan Participants	45		58
Defined Benefit Plan, Benefits Paid	(313)		(310)
Defined Benefit Plan, Fair Value of Plan Assets, Period Increase (Decrease)	(326)		(382)
Defined Benefit Plan, Settlements, Plan Assets	0		0
Defined Benefit Plan, Fair Value of Plan Assets period End	1,043		1,004		972
Defined Benefit Plan, Funded Status of Plan [Abstract]
Defined Benefit Plan, Funded Status of Plan	$ (2,162)		$ (2,578)

[1] (1) At each period-end presented, our accumulated benefit obligations for our pension plans are equal to the benefit obligations shown above.

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Restructuring and Other Items (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	$ 402	$ 452	$ 242
Facilities, fleet and other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	402	293	135
Property Subject to Operating Lease [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	107
Severance and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	0	237	100
Comair Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items		66
Routes and slots [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	0	(78)	7
Delta Employee Severance [Member] | Severance and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Entity Number of Employees		2,000
Comair Employee Severance [Member] | Severance and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Entity Number of Employees		1,700
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Restructuring Cost and Reserve [Line Items]
Defined Benefit Plan, Other Costs	0	116	0
Minimum [Member] | Future operating lease charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	200
Maximum [Member] | Future operating lease charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	$ 300

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Aircraft Purchase and Lease Commitments

Accordingly, our actual payments under these agreements could differ materially from the minimum fixed obligations set forth in the table below.

Years Ending December 31, (in millions)	Amount(1)
2014	$	2,110
2015	2,040
2016	1,780
2017	1,560
2018	1,320
Thereafter	1,930
Total	$	10,740

⁽¹⁾  These amounts exclude Contract Carrier payments accounted for as operating leases of aircraft, which are described in Note 9. The contingencies described below under “Contingencies Related to Termination of Contract Carrier Agreements” are also excluded from this table.

Years Ending December 31, (in millions)	Total
2014	$	1,585
2015	1,215
2016	1,700
2017	1,495
2018	450
Thereafter	2,700
Total	$	9,145

Employees Under Collective Bargaining Agreements

Employee Group	Approximate Number of Active Employees Represented	Union	Date on which Collective Bargaining Agreement Becomes Amendable
Delta Pilots	10,700	ALPA	December 31, 2015
Delta Flight Superintendents (Dispatchers)(1)	370	PAFCA	December 31, 2013
Endeavor Air Pilots	1,820	ALPA	January 1, 2020
Endeavor Air Flight Attendants	990	AFA	December 31, 2018
Endeavor Air Dispatchers	60	DISTWU	December 31, 2018

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Derivatives and Risk Management (Details 1) In Millions, unless otherwise specified																															12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2013 Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2012 Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2013 Other Assets [Member] USD ($)	Dec. 31, 2012 Other Assets [Member] USD ($)	Dec. 31, 2013 Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2012 Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2013 Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2012 Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member] Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member] Other Assets [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Assets [Member] USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member] Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2013 Designated as Hedging Instrument [Member] Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2012 Designated as Hedging Instrument [Member] Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Prepaid Expenses and Other Assets [Member] USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Other Assets [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Other Assets [Member] USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Other Accrued Liabilities [Member] USD ($)	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Other Noncurrent Liabilities [Member] USD ($)	Dec. 31, 2013 Fuel Contract [Member] Not Designated as Hedging Instrument [Member] gal	Dec. 31, 2012 Fuel Contract [Member] Not Designated as Hedging Instrument [Member] gal	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Contract [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Cash Flow Hedging [Member] Interest Rate Contract [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2013 Cash Flow Hedging [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member] CAD	Dec. 31, 2013 Cash Flow Hedging [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member] JPY (¥)	Dec. 31, 2012 Cash Flow Hedging [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member] CAD	Dec. 31, 2012 Cash Flow Hedging [Member] Foreign Exchange Contract [Member] Designated as Hedging Instrument [Member] JPY (¥)	Dec. 31, 2013 Fair Value Hedging [Member] Interest Rate Contract [Member] Designated as Hedging Instrument [Member] USD ($)	Dec. 31, 2012 Fair Value Hedging [Member] Interest Rate Contract [Member] Designated as Hedging Instrument [Member] USD ($)
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount																																	$ 477	$ 740	438	¥ 120,915	430	¥ 119,277	$ 445	$ 469
Derivative, Nonmonetary Notional Amount																															4,077,000,000	1,792,000,000
Derivative, Maturity Date																															Mar. 31, 2015	Dec. 31, 2013	May 31, 2019	May 31, 2019	Aug. 31, 2016	Aug. 31, 2016	Dec. 31, 2015	Dec. 31, 2015	Aug. 31, 2022	Aug. 31, 2022
Interest Rate Contracts (Cash Flow Hedges), Assets													0	0	0	0
Interest Rate Contracts (Cash Flow Hedges), Liabilities																	(17)	(22)	(26)	(48)
Interest Rate Contracts (Cash Flow Hedges), Hedge Derivatives, Net											(43)	(70)
Interest Rate Contracts (Fair Value Hedges), Assets													0	0	0	6
Interest Rate Contracts (Fair Value Hedges), Liabilities																	(2)	(2)	(22)	0
Interest Rate Contracts (Fair Value Hedges), Hedge Derivatives, Net											(24)	4
Foreign Currency Exchange Contracts, Assets													157	62	100	63
Foreign Currency Exchange Contracts, Liabilities																	0	(1)	0	(1)
Foreign Currency Exchange Contracts, Hedge Derivatives, Net	257	123									257	123
Fuel Contracts, Assets																							428	511	29	0
Fuel Contracts, Liabilities																											(127)	(262)	(16)	0
Fuel Contracts, Derivatives, Net	314	249																			314	249
Total Derivative Contracts, Assets			585	573	129	69
Total Derivative Contracts, Liabilities							(146)	(287)	(64)	(49)
Net Derivative Contracts, Hedge Derivatives, Net	504	306
Net Derivative Contracts, Assets			456	320	116	69
Net Derivative Contracts, Liabilities							$ (19)	$ (34)	$ (49)	$ (49)

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Lease Obligations (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases, Future Minimum Payments Due, Current	$ 165
Capital Leases, Future Minimum Payments Due in Two Years	158
Capital Leases, Future Minimum Payments Due in Three Years	143
Capital Leases, Future Minimum Payments Due in Four Years	100
Capital Leases, Future Minimum Payments Due in Five Years	54
Capital Leases, Future Minimum Payments Due Thereafter	74
Capital Leases, Future Minimum Payments Due	694
Capital Leases, Future Minimum Payments, Interest Included in Payments	(197)
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments	497
Capital Lease Obligations, Current	(98)
Capital Lease Obligations, Noncurrent	$ 399

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Long Term Debt (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Debt Instrument [Line Items]
Secured Debt	$ 11,074		$ 11,839
Unsecured Debt	154		794
Long-term Debt, Gross	11,228		12,633
Debt Instrument, Unamortized Discount (Premium), Net	(383)		(527)
Long-term Debt	10,845		12,106
Long-term Debt, Current Maturities	(1,449)		(1,507)
Long-term Debt, Excluding Current Maturities	9,396		10,599
Pacific Term Loan B1 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Oct. 31, 2018
Debt Instrument, Interest Rate, Stated Percentage	4.00%	[1]
Secured Debt	1,089	[2]	1,100	[2]
Pacific Term Loan B2 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Apr. 30, 2016
Debt Instrument, Interest Rate, Stated Percentage	3.25%	[1]
Secured Debt	396	[2]	400	[2]
Pacific Revolving Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Oct. 31, 2017
Line of Credit Facility, Amount Outstanding	0		0
Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Apr. 30, 2017
Debt Instrument, Interest Rate, Stated Percentage	3.50%	[1]
Secured Debt	1,341	[2]	1,354	[2]
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Apr. 30, 2016
Line of Credit Facility, Amount Outstanding	0		0
Certificates [Member]
Debt Instrument [Line Items]
Secured Debt	3,834	[2],[3]	4,314	[2],[3]
Debt Instrument, Maturity Date Range, Start	Jan. 01, 2014
Debt Instrument, Maturity Date Range, End	Dec. 31, 2023
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	4.75%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	9.75%
Aircraft Financings [Member]
Debt Instrument [Line Items]
Secured Debt	3,787	[2],[3]	3,964	[2],[3]
Debt Instrument, Maturity Date Range, Start	Jan. 01, 2014
Debt Instrument, Maturity Date Range, End	Dec. 31, 2025
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	0.64%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	6.76%
Other Secured Financings [Member]
Debt Instrument [Line Items]
Secured Debt	627	[2],[4]	707	[2],[4]
Debt Instrument, Maturity Date Range, Start	Jan. 01, 2014
Debt Instrument, Maturity Date Range, End	Dec. 31, 2031
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	0.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	6.12%
Bank Revolving Credit Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding	0		0
Debt Instrument, Maturity Date Range, Start	Jan. 01, 2014
Debt Instrument, Maturity Date Range, End	Dec. 31, 2015
American Express Advance Purchase of SkyMiles [Member]
Debt Instrument [Line Items]
Unsecured Debt	0	[5]	619	[5]
Other Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date Range, Start	Jan. 01, 2014
Debt Instrument, Maturity Date Range, End	Dec. 31, 2035
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	3.01%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	9.00%
Unsecured Debt	$ 154	[2]	$ 175	[2]

[1] (1) Interest rate equal to LIBOR (generally subject to a floor) or another index rate, in each case plus a specified margin.

[2] (2) Due in installments

[3] (3) Secured by aircraft.

[4] (4) Primarily includes loans secured by spare parts, spare engines and real estate.

[5] (5) For additional information about our debt associated with American Express, see Note 7.

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Oil Refinery (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total Operating Revenue	$ 9,076	$ 10,490	$ 9,707	$ 8,500	$ 8,602	$ 9,923	$ 9,732	$ 8,413	$ 37,773	$ 36,670	$ 35,115
Operating Income (Loss)	701	1,563	914	222	352	1,308	134	382	3,400	2,175	1,975
Interest Expense, net									698	812
Depreciation and amortization expense									1,658	1,565
Total assets	52,252				44,550				52,252	44,550
Capital expenditures									2,568	1,968
Airline [Member]
Segment Reporting Information [Line Items]
Total Operating Revenue									37,773	36,670
Operating Income (Loss)									3,516	2,238
Interest Expense, net									698	812
Depreciation and amortization expense									1,641	1,561
Total assets	51,080				43,386				51,080	43,386
Capital expenditures									2,516	1,637
Refinery [Member]
Segment Reporting Information [Line Items]
Total Operating Revenue									7,003	1,347
Operating Income (Loss)									(116)	(63)
Interest Expense, net									0	0
Depreciation and amortization expense									17	4
Total assets	1,172				1,164				1,172	1,164
Capital expenditures									52	331
Sales to airline segment [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total Operating Revenue									(1,156)	(213)
Exchanged products [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total Operating Revenue									(5,352)	(1,121)
Sales of refined products to third parties [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total Operating Revenue									$ (495)	$ (13)

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Summary of Significant Accounting Policies (Notes)

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

Delta Air Lines, Inc., a Delaware corporation, provides scheduled air transportation for passengers and cargo throughout the United States (“U.S.”) and around the world. Our Consolidated Financial Statements include the accounts of Delta Air Lines, Inc. and our wholly-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”). We do not consolidate the financial statements of any company in which we have an ownership interest of 50% or less. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity. We reclassified certain prior period amounts, none of which were material, to conform to the current period presentation.

We have marketing alliances with other airlines to enhance our access to domestic and international markets. These arrangements may include codesharing, reciprocal frequent flyer program benefits, shared or reciprocal access to passenger lounges, joint promotions, common use of airport gates and ticket counters, ticket office co-location and other marketing agreements. We have received antitrust immunity for certain marketing arrangements, which enables us to offer a more integrated route network and develop common sales, marketing and discount programs for customers. Some of our marketing arrangements provide for the sharing of revenues and expenses. Revenues and expenses associated with collaborative arrangements are presented on a gross basis in the applicable line items on our Consolidated Statements of Operations.

As described in Note 18, we became the sole owner of Endeavor Air, Inc. ("Endeavor"), formerly Pinnacle Airlines, Inc., on May 1, 2013, pursuant to a confirmed plan of reorganization in the bankruptcy cases of Endeavor and its affiliates. Prior to this acquisition, Endeavor served as a regional carrier under a capacity purchase agreement where we purchased all of Endeavor's seat inventory and marketed it under the Delta tradename. Accordingly, Endeavor's passenger revenue was included in regional carriers passenger revenue in Delta's Consolidated Statements of Operations. All of the expenses Delta incurred under this arrangement were included in contract carrier arrangements expense. Subsequent to this acquisition, we have maintained this presentation and have re-titled contract carrier arrangements expense as regional carrier expense to reflect the inclusion of a wholly-owned regional carrier. This presentation aligns with the regional revenue presentation on the Consolidated Statements of Operations.

Use of Estimates

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.

Recent Accounting Standards

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

Recently issued accounting guidance revises the reporting of items reclassified out of accumulated other comprehensive income and is effective for fiscal years beginning after December 15, 2012. We adopted this guidance in the March 2013 quarter and have presented amounts reclassified out of accumulated other comprehensive income in a note to the financial statements. For more information about accumulated other comprehensive income (loss), see Note 14.

Presentation of Comprehensive Income

In June 2011, the Financial Accounting Standards Board ("FASB") issued "Presentation of Comprehensive Income." The standard revises the presentation and prominence of the items reported in other comprehensive income and is effective retrospectively for fiscal years beginning after December 15, 2011. We adopted this standard in 2012 and have presented comprehensive income in our Consolidated Statements of Comprehensive Income (Loss).

Cash and Cash Equivalents and Short-Term Investments

Short-term, highly liquid investments with maturities of three months or less when purchased are classified as cash and cash equivalents. Investments with maturities of greater than three months, but not in excess of one year, when purchased are classified as short-term investments.

Accounts Receivable

Accounts receivable primarily consist of amounts due from credit card companies from the sale of passenger airline tickets, customers of our aircraft maintenance and cargo transportation services and other companies for the purchase of mileage credits under our SkyMiles Program. We provide an allowance for uncollectible accounts equal to the estimated losses expected to be incurred based on historical chargebacks, write-offs, bankruptcies and other specific analyses. Bad debt expense was not material in any period presented.

Inventories

Spare Parts. Inventories of expendable parts related to flight equipment, which cannot be economically repaired, reconditioned or reused after removal from the aircraft, are carried at moving average cost and charged to operations as consumed. An allowance for obsolescence is provided over the remaining useful life of the related fleet for spare parts expected to be available at the date aircraft are retired from service. We also provide allowances for parts identified as excess or obsolete to reduce the carrying costs to the lower of cost or net realizable value. These parts are assumed to have an estimated residual value of 5% of the original cost.

Refinery. Refined product, feedstock and blendstock inventories, all of which are finished goods, are carried at the lower of cost or market. Cost is determined using the first-in, first-out method. Costs include the raw material consumed plus direct manufacturing costs (such as labor, utilities and supplies) as incurred and an applicable portion of manufacturing overhead. Ending inventory costs in excess of market value are written down to net recoverable values and charged to operating expense.

Accounting for Refinery Related Buy/Sell Agreements

To the extent that we receive jet fuel for non-jet fuel products (as defined in Note 2) exchanged under buy/sell agreements, we account for these transactions as non-monetary exchanges. We have recorded these non-monetary exchanges at the carrying amount of the non-jet fuel products transferred within aircraft fuel and related taxes on the Consolidated Statements of Operations.

Derivatives

Changes in aircraft fuel prices, interest rates and foreign currency exchange rates impact our results of operations. In an effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as market conditions change. We recognize derivative contracts at fair value on our Consolidated Balance Sheets.

Not Designated as Accounting Hedges. During 2011, we stopped designating substantially all of our new fuel derivative contracts as accounting hedges and discontinued hedge accounting for fuel derivative contracts that had previously been designated as accounting hedges.As a result, we record changes in the fair value of our fuel hedges in aircraft fuel and related taxes.Prior to this change in accounting designation, gains or losses on these contracts were deferred in accumulated other comprehensive income (loss) ("AOCI") until contract settlement.At contract settlement, the gains or losses were then reclassified to aircraft fuel and related taxes.As of December 31, 2013, there are no fuel derivative contracts designated as accounting hedges.

Designated as Cash Flow Hedges. For derivative contracts designated as cash flow hedges (interest rate contracts and foreign currency exchange rates), the effective portion of the gain or loss on the derivative is reported as a component of AOCI and reclassified into earnings in the same period in which the hedged transaction affects earnings. The effective portion of the derivative represents the change in fair value of the hedge that offsets the change in fair value of the hedged item. To the extent the change in the fair value of the hedge does not perfectly offset the change in the fair value of the hedged item, the ineffective portion of the hedge is immediately recognized in other (expense) income.

Designated as Fair Value Hedges. For derivative contracts designated as fair value hedges (interest rate contracts), the gain or loss on the derivative and the offsetting loss or gain on the hedge item attributable to the hedged risk are recognized in current earnings. We include the gain or loss on the hedged item in the same account as the offsetting loss or gain on the related derivative contract, resulting in no impact to our Consolidated Statements of Operations.

The following table summarizes the risk each type of derivative contract is hedging and the classification of related gains and losses on our Consolidated Statements of Operations:

Derivative Type	Hedged Risk	Classification of Gains and Losses
Fuel hedge contracts	Increases in jet fuel prices	Aircraft fuel and related taxes
Interest rate contracts	Increases in interest rates	Interest expense, net
Foreign currency exchange contracts	Fluctuations in foreign currency exchange rates	Passenger revenue

The following table summarizes the accounting treatment of our derivative contracts:

	Impact of Unrealized Gains and Losses
Accounting Designation	Effective Portion	Ineffective Portion
Not designated as hedges	Change in fair value of hedge is recorded in earnings
Designated as cash flow hedges	Market adjustments are recorded in AOCI	Excess, if any, over effective portion of hedge is recorded in other expense
Designated as fair value hedges	Market adjustments are recorded in long-term debt and capital leases	Excess, if any, over effective portion of hedge is recorded in other expense

We perform, at least quarterly, an assessment of the effectiveness of our derivative contracts designated as hedges, including assessing the possibility of counterparty default. If we determine that a derivative is no longer expected to be highly effective, we discontinue hedge accounting prospectively and recognize subsequent changes in the fair value of the hedge in earnings. We believe our derivative contracts that continue to be designated as hedges, consisting of interest rate and foreign currency exchange contracts, will continue to be highly effective in offsetting changes in cash flow attributable to the hedged risk.

Hedge Margin. In accordance with our fuel, interest rate and foreign currency hedge contracts, we may require counterparties to fund the margin associated with our gain position and/or counterparties may require us to fund the margin associated with our loss position on these contracts. The amount of the margin, if any, is periodically adjusted based on the fair value of the hedge contracts. The margin requirements are intended to mitigate a party's exposure to the risk of contracting party default. We do not offset margin funded to counterparties or margin funded to us by counterparties against fair value amounts recorded for our hedge contracts.

The hedge margin we receive from counterparties is recorded in cash and cash equivalents or restricted cash, cash equivalents and short-term investments, with the offsetting obligation in accounts payable. The hedge margin we provide to counterparties is recorded in accounts receivable. All cash flows associated with purchasing and settling hedge contracts are classified as operating cash flows.

Passenger Tickets

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.

Passenger Taxes and Fees

We are required to charge certain taxes and fees on our passenger tickets, including U.S. federal transportation taxes, federal security charges, airport passenger facility charges and foreign arrival and departure taxes. These taxes and fees are assessments on the customer for which we act as a collection agent. Because we are not entitled to retain these taxes and fees, we do not include such amounts in passenger revenue. We record a liability when the amounts are collected and reduce the liability when payments are made to the applicable government agency or operating carrier.

Frequent Flyer Program

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 and airlines that participate in the SkyMiles Program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines.

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.

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration we received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.

Regional Carriers Revenue

During the year ended December 31, 2013, we had contract carrier agreements with third party regional carriers ("Contract Carriers"), in addition to our wholly-owned subsidiary, Endeavor. In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Our wholly-owned subsidiary, Comair, Inc. ("Comair") ceased operations in September 2012 (see Note 16).

Our Contract Carrier agreements are structured as either (1) capacity purchase agreements where we purchase all or a portion of the Contract Carrier's capacity and are responsible for selling the seat inventory we purchase or (2) revenue proration agreements, which are based on a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries. We record revenue related to all of our Contract Carrier agreements as regional carriers passenger revenue. We record expenses related to our Contract Carrier agreements, as regional carrier expense.

Cargo Revenue

Cargo revenue is recognized when we provide the transportation.

Other Revenue

Other revenue is primarily comprised of (1) the marketing component of the sale of mileage credits discussed above, (2) baggage fee revenue, (3) other miscellaneous service revenue, including ticket change fees and (4) revenue from ancillary businesses, such as the aircraft maintenance and repair and staffing services we provide to third parties.

Long-Lived Assets

The following table shows our property and equipment:

		December 31,
(in millions, except for estimated useful life)	Estimated Useful Life	2013			2012
Flight equipment	21-30 years	$	23,373		$	21,481
Ground property and equipment	3-40 years	4,596			4,254
Flight and ground equipment under capital leases	Shorter of lease term or estimated useful life	1,296			1,381
Advance payments for equipment		381			253
Less: accumulated depreciation and amortization(1)		(7,792		)	(6,656		)
Total property and equipment, net		$	21,854		$	20,713

⁽¹⁾ Includes accumulated amortization for flight and ground equipment under capital leases in the amount of $657 million and $653 million at December 31, 2013 and 2012, respectively.

We record property and equipment at cost and depreciate or amortize these assets on a straight-line basis to their estimated residual values over their estimated useful lives. The estimated useful life for leasehold improvements is the shorter of lease term or estimated useful life. Depreciation expense for each of the years ended December 31, 2013, 2012 and 2011 was approximately $1.4 billion. Residual values for owned aircraft, engines, spare parts and simulators are generally 5% to 10% of cost.

We capitalize certain internal and external costs incurred to develop and implement software, and amortize those costs over an estimated useful life of three to seven years. For the years ended December 31, 2013, 2012 and 2011, we recorded $110 million, $76 million and $64 million, respectively, for amortization of capitalized software. The net book value of these assets totaled $383 million and $344 million at December 31, 2013 and 2012, respectively.

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.

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.

Goodwill and Other Intangible Assets

We apply a fair value-based impairment test to the carrying value of goodwill and indefinite-lived intangible assets on an annual basis (as of October 1) and, if certain events or circumstances indicate that an impairment loss may have been incurred, on an interim basis. In 2012, the FASB issued "Testing Indefinite-Lived Intangible Assets for Impairment." The standard gives companies the option to perform a qualitative assessment to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired rather than calculating the fair value of the indefinite-lived intangible asset. It is effective prospectively for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. We adopted this standard and have applied the provisions to our annual indefinite-lived intangible asset impairment tests in both the December 2013 and 2012 quarters. The adoption of this standard did not have a material impact on our Consolidated Financial Statements. In September 2011, the FASB issued "Testing Goodwill for Impairment." The standard revises the way in which entities test goodwill for impairment. We adopted this standard and applied its provisions to our annual goodwill impairment tests in each of the December 2013, 2012 and 2011 quarters.

We value goodwill and identified intangible assets primarily using market capitalization and income approach valuation techniques. These measurements include the following significant unobservable inputs: (1) our projected revenues, expenses and cash flows, (2) an estimated weighted average cost of capital, (3) assumed discount rates depending on the asset and (4) a tax rate. These assumptions are consistent with those hypothetical market participants would use. Since we are required to make estimates and assumptions when evaluating goodwill and indefinite-lived intangible assets for impairment, the actual amounts may differ materially from these estimates.

Changes in certain events and circumstances could result in impairment. Factors which could cause impairment include, but are not limited to, (1) negative trends in our market capitalization, (2) an increase in fuel prices, (3) declining passenger mile yields, (4) lower passenger demand as a result of a weakened U.S. and global economy, (5) interruption to our operations due to a prolonged employee strike, terrorist attack, or other reasons and (6) changes to the regulatory environment.

Goodwill. Our goodwill balance, which is related to the airline segment, was $9.8 billion at December 31, 2013. In evaluating goodwill for impairment, we estimate the fair value of our reporting unit by considering market capitalization and other factors if it is more likely than not that the fair value of our reporting unit is less than its carrying value. If the reporting unit's fair value exceeds its carrying value, no further testing is required. If, however, the reporting unit's carrying value exceeds its fair value, we then determine the amount of the impairment charge, if any. We recognize an impairment charge if the carrying value of the reporting unit's goodwill exceeds its estimated fair value.

Identifiable Intangible Assets. Our identifiable intangible assets, which are related to the airline segment, had a net carrying amount of $4.7 billion at December 31, 2013. Indefinite-lived assets are not amortized and consist of routes, slots, the Delta tradename and assets related to SkyTeam. Definite-lived intangible assets consist primarily of marketing agreements and are amortized on a straight-line basis or under the undiscounted cash flows method over the estimated economic life of the respective agreements. Costs incurred to renew or extend the term of an intangible asset are expensed as incurred.

We assess our indefinite-lived assets under a qualitative or quantitative approach. We analyze market factors to determine if events and circumstances have affected the fair value of the indefinite-lived intangible assets. If we determine that it is more likely than not that the asset value may be impaired, we use the quantitative approach to assess the asset's fair value and the amount of the impairment. We perform the quantitative impairment test for indefinite-lived intangible assets by comparing the asset's fair value to its carrying value. Fair value is estimated based on (1) recent market transactions, where available, (2) a combination of limited market transactions and the lease savings method for certain airport slots (which reflects potential lease savings from owning the slots rather than leasing them from another airline at market rates), (3) the royalty method for the Delta tradename (which assumes hypothetical royalties generated from using our tradename) or (4) projected discounted future cash flows. We recognize an impairment charge if the asset's carrying value exceeds its estimated fair value.

Income Taxes

We account for deferred income taxes under the liability method. We recognize deferred tax assets and liabilities based on the tax effects of temporary differences between the financial statement and tax bases of assets and liabilities, as measured by current enacted tax rates. Deferred tax assets and liabilities are recorded net as current and noncurrent deferred income taxes. A valuation allowance is recorded to reduce deferred tax assets when necessary. For additional information about our income taxes, see Note 12.

Manufacturers' Credits

We periodically receive credits in connection with the acquisition of aircraft and engines. These credits are deferred until the aircraft and engines are delivered, and then applied on a pro rata basis as a reduction to the cost of the related equipment.

Maintenance Costs

We record maintenance costs to aircraft maintenance materials and outside repairs. Maintenance costs are expensed as incurred, except for costs incurred under power-by-the-hour contracts, which are expensed based on actual hours flown. Power-by-the-hour contracts transfer certain risk to third party service providers and fix the amount we pay per flight hour to the service provider in exchange for maintenance and repairs under a predefined maintenance program. Modifications that enhance the operating performance or extend the useful lives of airframes or engines are capitalized and amortized over the remaining estimated useful life of the asset or the remaining lease term, whichever is shorter.

Advertising Costs

We expense advertising costs as other selling expenses in the year incurred. Advertising expense was approximately $200 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Commissions

Passenger sales commissions are recognized in operating expense when the related revenue is recognized.

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Long Term Debt (Details 1)	12 Months Ended
	Dec. 31, 2013
2011 Credit Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Description	Minimum Fixed Charge Coverage Ratio 1.20:1; Minimum Unrestricted Liquidity - Unrestricted cash and permitted investments $1.0 billion, Unrestricted cash, permitted investments, and undrawn revolving credit facilities $2.0 billion; Minimum Collateral Coverage Ratio 1.67:1; Excluding the non-Pacific international routes from the collateral for purposes of the calculation, the required minimum collateral coverage ratio is 0.75:1
Pacific Facilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Description	Minimum Fixed Charge Coverage Ratio 1.20:1; Minimum Unrestricted Liquidity - Unrestricted cash, permitted investments, and undrawn revolving credit facilities $2.0 billion; Minimum Collateral Coverage Ratio 1.60:1

XML

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table shows our computation of basic and diluted earnings per share:

	Year Ended December 31,
(in millions, except per share data)	2013		2012		2011
Net income	$	10,540	$	1,009	$	854
Basic weighted average shares outstanding	849		845		838
Dilutive effects of share based awards	9		5		6
Diluted weighted average shares outstanding	858		850		844
Basic earnings per share	$	12.41	$	1.20	$	1.02
Diluted earnings per share	$	12.29	$	1.19	$	1.01
Antidilutive common stock equivalents excluded from diluted earnings per share	8		18		17

XML

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block]

We do not consolidate the financial statements of any company in which we have an ownership interest of 50% or less.

Basis of Accounting [Policy Text Block]

Our Consolidated Financial Statements include the accounts of Delta Air Lines, Inc. and our wholly-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”). We do not consolidate the financial statements of any company in which we have an ownership interest of 50% or less. We are not the primary beneficiary of, nor do we have a controlling financial interest in, any variable interest entity. Accordingly, we have not consolidated any variable interest entity. We reclassified certain prior period amounts, none of which were material, to conform to the current period presentation.

We have marketing alliances with other airlines to enhance our access to domestic and international markets. These arrangements may include codesharing, reciprocal frequent flyer program benefits, shared or reciprocal access to passenger lounges, joint promotions, common use of airport gates and ticket counters, ticket office co-location and other marketing agreements. We have received antitrust immunity for certain marketing arrangements, which enables us to offer a more integrated route network and develop common sales, marketing and discount programs for customers. Some of our marketing arrangements provide for the sharing of revenues and expenses. Revenues and expenses associated with collaborative arrangements are presented on a gross basis in the applicable line items on our Consolidated Statements of Operations.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

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.

Recent Accounting Standards, Policy [Policy Text Block]

Recent Accounting Standards

Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income

Recently issued accounting guidance revises the reporting of items reclassified out of accumulated other comprehensive income and is effective for fiscal years beginning after December 15, 2012. We adopted this guidance in the March 2013 quarter and have presented amounts reclassified out of accumulated other comprehensive income in a note to the financial statements. For more information about accumulated other comprehensive income (loss), see Note 14.

Presentation of Comprehensive Income

In June 2011, the Financial Accounting Standards Board ("FASB") issued "Presentation of Comprehensive Income." The standard revises the presentation and prominence of the items reported in other comprehensive income and is effective retrospectively for fiscal years beginning after December 15, 2011. We adopted this standard in 2012 and have presented comprehensive income in our Consolidated Statements of Comprehensive Income (Loss).

Cash and Cash Equivalents, Policy [Policy Text Block]

Short-term, highly liquid investments with maturities of three months or less when purchased are classified as cash and cash equivalents.

Investment, Policy [Policy Text Block]

Investments with maturities of greater than three months, but not in excess of one year, when purchased are classified as short-term investments.

Receivables, Policy [Policy Text Block]

Accounts Receivable

Accounts receivable primarily consist of amounts due from credit card companies from the sale of passenger airline tickets, customers of our aircraft maintenance and cargo transportation services and other companies for the purchase of mileage credits under our SkyMiles Program. We provide an allowance for uncollectible accounts equal to the estimated losses expected to be incurred based on historical chargebacks, write-offs, bankruptcies and other specific analyses. Bad debt expense was not material in any period presented.

Inventory, Policy [Policy Text Block]

Inventories

Spare Parts. Inventories of expendable parts related to flight equipment, which cannot be economically repaired, reconditioned or reused after removal from the aircraft, are carried at moving average cost and charged to operations as consumed. An allowance for obsolescence is provided over the remaining useful life of the related fleet for spare parts expected to be available at the date aircraft are retired from service. We also provide allowances for parts identified as excess or obsolete to reduce the carrying costs to the lower of cost or net realizable value. These parts are assumed to have an estimated residual value of 5% of the original cost.

Refinery. Refined product, feedstock and blendstock inventories, all of which are finished goods, are carried at the lower of cost or market. Cost is determined using the first-in, first-out method. Costs include the raw material consumed plus direct manufacturing costs (such as labor, utilities and supplies) as incurred and an applicable portion of manufacturing overhead. Ending inventory costs in excess of market value are written down to net recoverable values and charged to operating expense.

Refinery related buy/sell agreements [Policy Text Block]

Accounting for Refinery Related Buy/Sell Agreements

To the extent that we receive jet fuel for non-jet fuel products (as defined in Note 2) exchanged under buy/sell agreements, we account for these transactions as non-monetary exchanges. We have recorded these non-monetary exchanges at the carrying amount of the non-jet fuel products transferred within aircraft fuel and related taxes on the Consolidated Statements of Operations.

Derivatives, Policy [Policy Text Block]

Derivatives

Changes in aircraft fuel prices, interest rates and foreign currency exchange rates impact our results of operations. In an effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as market conditions change. We recognize derivative contracts at fair value on our Consolidated Balance Sheets.

Not Designated as Accounting Hedges. During 2011, we stopped designating substantially all of our new fuel derivative contracts as accounting hedges and discontinued hedge accounting for fuel derivative contracts that had previously been designated as accounting hedges.As a result, we record changes in the fair value of our fuel hedges in aircraft fuel and related taxes.Prior to this change in accounting designation, gains or losses on these contracts were deferred in accumulated other comprehensive income (loss) ("AOCI") until contract settlement.At contract settlement, the gains or losses were then reclassified to aircraft fuel and related taxes.As of December 31, 2013, there are no fuel derivative contracts designated as accounting hedges.

Designated as Cash Flow Hedges. For derivative contracts designated as cash flow hedges (interest rate contracts and foreign currency exchange rates), the effective portion of the gain or loss on the derivative is reported as a component of AOCI and reclassified into earnings in the same period in which the hedged transaction affects earnings. The effective portion of the derivative represents the change in fair value of the hedge that offsets the change in fair value of the hedged item. To the extent the change in the fair value of the hedge does not perfectly offset the change in the fair value of the hedged item, the ineffective portion of the hedge is immediately recognized in other (expense) income.

Designated as Fair Value Hedges. For derivative contracts designated as fair value hedges (interest rate contracts), the gain or loss on the derivative and the offsetting loss or gain on the hedge item attributable to the hedged risk are recognized in current earnings. We include the gain or loss on the hedged item in the same account as the offsetting loss or gain on the related derivative contract, resulting in no impact to our Consolidated Statements of Operations.

The following table summarizes the risk each type of derivative contract is hedging and the classification of related gains and losses on our Consolidated Statements of Operations:

Derivative Type	Hedged Risk	Classification of Gains and Losses
Fuel hedge contracts	Increases in jet fuel prices	Aircraft fuel and related taxes
Interest rate contracts	Increases in interest rates	Interest expense, net
Foreign currency exchange contracts	Fluctuations in foreign currency exchange rates	Passenger revenue

The following table summarizes the accounting treatment of our derivative contracts:

	Impact of Unrealized Gains and Losses
Accounting Designation	Effective Portion	Ineffective Portion
Not designated as hedges	Change in fair value of hedge is recorded in earnings
Designated as cash flow hedges	Market adjustments are recorded in AOCI	Excess, if any, over effective portion of hedge is recorded in other expense
Designated as fair value hedges	Market adjustments are recorded in long-term debt and capital leases	Excess, if any, over effective portion of hedge is recorded in other expense

We perform, at least quarterly, an assessment of the effectiveness of our derivative contracts designated as hedges, including assessing the possibility of counterparty default. If we determine that a derivative is no longer expected to be highly effective, we discontinue hedge accounting prospectively and recognize subsequent changes in the fair value of the hedge in earnings. We believe our derivative contracts that continue to be designated as hedges, consisting of interest rate and foreign currency exchange contracts, will continue to be highly effective in offsetting changes in cash flow attributable to the hedged risk.

Hedge Margin. In accordance with our fuel, interest rate and foreign currency hedge contracts, we may require counterparties to fund the margin associated with our gain position and/or counterparties may require us to fund the margin associated with our loss position on these contracts. The amount of the margin, if any, is periodically adjusted based on the fair value of the hedge contracts. The margin requirements are intended to mitigate a party's exposure to the risk of contracting party default. We do not offset margin funded to counterparties or margin funded to us by counterparties against fair value amounts recorded for our hedge contracts.

The hedge margin we receive from counterparties is recorded in cash and cash equivalents or restricted cash, cash equivalents and short-term investments, with the offsetting obligation in accounts payable. The hedge margin we provide to counterparties is recorded in accounts receivable. All cash flows associated with purchasing and settling hedge contracts are classified as operating cash flows.

Revenue Recognition, Policy [Policy Text Block]

Passenger Tickets

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.

Passenger Taxes and Fees

We are required to charge certain taxes and fees on our passenger tickets, including U.S. federal transportation taxes, federal security charges, airport passenger facility charges and foreign arrival and departure taxes. These taxes and fees are assessments on the customer for which we act as a collection agent. Because we are not entitled to retain these taxes and fees, we do not include such amounts in passenger revenue. We record a liability when the amounts are collected and reduce the liability when payments are made to the applicable government agency or operating carrier.

Frequent Flyer Program

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 and airlines that participate in the SkyMiles Program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines.

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.

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration we received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.

Regional Carriers Revenue

During the year ended December 31, 2013, we had contract carrier agreements with third party regional carriers ("Contract Carriers"), in addition to our wholly-owned subsidiary, Endeavor. In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Our wholly-owned subsidiary, Comair, Inc. ("Comair") ceased operations in September 2012 (see Note 16).

Our Contract Carrier agreements are structured as either (1) capacity purchase agreements where we purchase all or a portion of the Contract Carrier's capacity and are responsible for selling the seat inventory we purchase or (2) revenue proration agreements, which are based on a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries. We record revenue related to all of our Contract Carrier agreements as regional carriers passenger revenue. We record expenses related to our Contract Carrier agreements, as regional carrier expense.

Cargo Revenue

Cargo revenue is recognized when we provide the transportation.

Other Revenue

Other revenue is primarily comprised of (1) the marketing component of the sale of mileage credits discussed above, (2) baggage fee revenue, (3) other miscellaneous service revenue, including ticket change fees and (4) revenue from ancillary businesses, such as the aircraft maintenance and repair and staffing services we provide to third parties.

Revenue Recognition, Sales of Services [Policy Text Block]

Passenger Tickets

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.

Revenue Recognition, Loyalty Programs [Policy Text Block]

Frequent Flyer Program

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 and airlines that participate in the SkyMiles Program, as well as through participating companies such as credit card companies, hotels and car rental agencies. We sell mileage credits to non-airline businesses, customers and other airlines.

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.

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration we received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.

Revenue Recognition, Deferred Revenue [Policy Text Block]

Passenger Ticket Sales Earning Mileage Credits. Passenger ticket sales earning mileage credits under our SkyMiles Program provide customers with two deliverables: (1) mileage credits earned and (2) air transportation.We value each deliverable on a standalone basis. Our estimate of the selling price of a mileage credit is based on an analysis of our sales of mileage credits to other airlines and customers, which is re-evaluated at least annually. We use established ticket prices to determine the estimated selling price of air transportation. We allocate the total amount collected from passenger ticket sales between the deliverables based on their relative selling prices.

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.

Sale of Mileage Credits.Customers may earn mileage credits through participating companies such as credit card companies, hotels and car rental agencies with which we have marketing agreements to sell mileage credits. Our contracts to sell mileage credits under these marketing agreements have multiple deliverables, as defined below.

Our most significant contract to sell mileage credits relates to our co-brand credit card relationship with American Express. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

In September 2013, we and American Express modified our SkyMiles agreements. This modification required that we use a different accounting standard for recording SkyMiles sold. Prior to the modifications, we allocated consideration we received from selling miles to American Express among two primary deliverables: credit redeemable for future travel and marketing deliverables. We deferred revenue related to the portion of mileage credits redeemable for future travel based on the rate at which we sell mileage credits to other airlines. We calculated the value of the marketing component based on the residual method and recognize it as other revenue as related marketing services are provided.

The September 2013 modifications introduced new deliverables and modified existing deliverables. Because these modifications were material to the SkyMiles agreements, we are required to use a different accounting standard that allocates the consideration received from selling miles to all deliverables based on their relative standalone sales price. Accordingly, we determined our best estimate of selling prices by considering discounted cash flows analysis using multiple inputs and assumptions, including: (1) the expected number of miles awarded and number of miles redeemed, (2) the rate at which we sell mileage credits to other airlines, (3) published rates on our website for baggage fees, access to Delta SkyClub lounges and other benefits while traveling on Delta and (4) brand value. The effect of this change in accounting standard lowered the deferral rate we use to record miles sold under the agreements, which increases revenue we will record in future periods. The revenue impact of the SkyMiles agreement modifications was insignificant for 2013 and is expected to increase 2014 revenue by approximately $100 million. Additionally, upon application of this accounting standard, we were required to adjust the recorded value of miles currently deferred in our Frequent Flyer Liability that originated through the American Express programs. Accordingly, we adjusted the liability in the September 2013 quarter by less than $10 million.

Breakage. For mileage credits that we estimate are not likely to be redeemed (“breakage”), we recognize the associated value proportionally during the period in which the remaining mileage credits are expected to be redeemed. Management uses statistical models to estimate breakage based on historical redemption patterns. A change in assumptions as to the period over which mileage credits are expected to be redeemed, the actual redemption activity for mileage credits or the estimated fair value of mileage credits expected to be redeemed could have a material impact on our revenue in the year in which the change occurs and in future years.

Revenue Recognition, Regional Carriers and Passengers, Policy [Policy Text Block]

Regional Carriers Revenue

During the year ended December 31, 2013, we had contract carrier agreements with third party regional carriers ("Contract Carriers"), in addition to our wholly-owned subsidiary, Endeavor. In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Our wholly-owned subsidiary, Comair, Inc. ("Comair") ceased operations in September 2012 (see Note 16).

Our Contract Carrier agreements are structured as either (1) capacity purchase agreements where we purchase all or a portion of the Contract Carrier's capacity and are responsible for selling the seat inventory we purchase or (2) revenue proration agreements, which are based on a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries. We record revenue related to all of our Contract Carrier agreements as regional carriers passenger revenue. We record expenses related to our Contract Carrier agreements, as regional carrier expense.

Revenue Recognition, Cargo and Freight, Policy [Policy Text Block]

Cargo Revenue

Cargo revenue is recognized when we provide the transportation.

Property, Plant and Equipment, Policy [Policy Text Block]

Long-Lived Assets

The following table shows our property and equipment:

		December 31,
(in millions, except for estimated useful life)	Estimated Useful Life	2013			2012
Flight equipment	21-30 years	$	23,373		$	21,481
Ground property and equipment	3-40 years	4,596			4,254
Flight and ground equipment under capital leases	Shorter of lease term or estimated useful life	1,296			1,381
Advance payments for equipment		381			253
Less: accumulated depreciation and amortization(1)		(7,792		)	(6,656		)
Total property and equipment, net		$	21,854		$	20,713

⁽¹⁾ Includes accumulated amortization for flight and ground equipment under capital leases in the amount of $657 million and $653 million at December 31, 2013 and 2012, respectively.

We record property and equipment at cost and depreciate or amortize these assets on a straight-line basis to their estimated residual values over their estimated useful lives. The estimated useful life for leasehold improvements is the shorter of lease term or estimated useful life. Depreciation expense for each of the years ended December 31, 2013, 2012 and 2011 was approximately $1.4 billion. Residual values for owned aircraft, engines, spare parts and simulators are generally 5% to 10% of cost.

We capitalize certain internal and external costs incurred to develop and implement software, and amortize those costs over an estimated useful life of three to seven years. For the years ended December 31, 2013, 2012 and 2011, we recorded $110 million, $76 million and $64 million, respectively, for amortization of capitalized software. The net book value of these assets totaled $383 million and $344 million at December 31, 2013 and 2012, respectively.

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.

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.

Property, Plant and Equipment, Impairment [Policy Text Block]

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.

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.

Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]

Identifiable Intangible Assets. Our identifiable intangible assets, which are related to the airline segment, had a net carrying amount of $4.7 billion at December 31, 2013. Indefinite-lived assets are not amortized and consist of routes, slots, the Delta tradename and assets related to SkyTeam. Definite-lived intangible assets consist primarily of marketing agreements and are amortized on a straight-line basis or under the undiscounted cash flows method over the estimated economic life of the respective agreements. Costs incurred to renew or extend the term of an intangible asset are expensed as incurred.

We assess our indefinite-lived assets under a qualitative or quantitative approach. We analyze market factors to determine if events and circumstances have affected the fair value of the indefinite-lived intangible assets. If we determine that it is more likely than not that the asset value may be impaired, we use the quantitative approach to assess the asset's fair value and the amount of the impairment. We perform the quantitative impairment test for indefinite-lived intangible assets by comparing the asset's fair value to its carrying value.

Goodwill and Intangible Assets, Policy [Policy Text Block]

Goodwill and Other Intangible Assets

We apply a fair value-based impairment test to the carrying value of goodwill and indefinite-lived intangible assets on an annual basis (as of October 1) and, if certain events or circumstances indicate that an impairment loss may have been incurred, on an interim basis. In 2012, the FASB issued "Testing Indefinite-Lived Intangible Assets for Impairment." The standard gives companies the option to perform a qualitative assessment to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired rather than calculating the fair value of the indefinite-lived intangible asset. It is effective prospectively for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. We adopted this standard and have applied the provisions to our annual indefinite-lived intangible asset impairment tests in both the December 2013 and 2012 quarters. The adoption of this standard did not have a material impact on our Consolidated Financial Statements. In September 2011, the FASB issued "Testing Goodwill for Impairment." The standard revises the way in which entities test goodwill for impairment. We adopted this standard and applied its provisions to our annual goodwill impairment tests in each of the December 2013, 2012 and 2011 quarters.

We value goodwill and identified intangible assets primarily using market capitalization and income approach valuation techniques. These measurements include the following significant unobservable inputs: (1) our projected revenues, expenses and cash flows, (2) an estimated weighted average cost of capital, (3) assumed discount rates depending on the asset and (4) a tax rate. These assumptions are consistent with those hypothetical market participants would use. Since we are required to make estimates and assumptions when evaluating goodwill and indefinite-lived intangible assets for impairment, the actual amounts may differ materially from these estimates.

Changes in certain events and circumstances could result in impairment. Factors which could cause impairment include, but are not limited to, (1) negative trends in our market capitalization, (2) an increase in fuel prices, (3) declining passenger mile yields, (4) lower passenger demand as a result of a weakened U.S. and global economy, (5) interruption to our operations due to a prolonged employee strike, terrorist attack, or other reasons and (6) changes to the regulatory environment.

Goodwill. Our goodwill balance, which is related to the airline segment, was $9.8 billion at December 31, 2013. In evaluating goodwill for impairment, we estimate the fair value of our reporting unit by considering market capitalization and other factors if it is more likely than not that the fair value of our reporting unit is less than its carrying value. If the reporting unit's fair value exceeds its carrying value, no further testing is required. If, however, the reporting unit's carrying value exceeds its fair value, we then determine the amount of the impairment charge, if any. We recognize an impairment charge if the carrying value of the reporting unit's goodwill exceeds its estimated fair value.

Identifiable Intangible Assets. Our identifiable intangible assets, which are related to the airline segment, had a net carrying amount of $4.7 billion at December 31, 2013. Indefinite-lived assets are not amortized and consist of routes, slots, the Delta tradename and assets related to SkyTeam. Definite-lived intangible assets consist primarily of marketing agreements and are amortized on a straight-line basis or under the undiscounted cash flows method over the estimated economic life of the respective agreements. Costs incurred to renew or extend the term of an intangible asset are expensed as incurred.

We assess our indefinite-lived assets under a qualitative or quantitative approach. We analyze market factors to determine if events and circumstances have affected the fair value of the indefinite-lived intangible assets. If we determine that it is more likely than not that the asset value may be impaired, we use the quantitative approach to assess the asset's fair value and the amount of the impairment. We perform the quantitative impairment test for indefinite-lived intangible assets by comparing the asset's fair value to its carrying value.

Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]

Goodwill. Our goodwill balance, which is related to the airline segment, was $9.8 billion at December 31, 2013. In evaluating goodwill for impairment, we estimate the fair value of our reporting unit by considering market capitalization and other factors if it is more likely than not that the fair value of our reporting unit is less than its carrying value. If the reporting unit's fair value exceeds its carrying value, no further testing is required. If, however, the reporting unit's carrying value exceeds its fair value, we then determine the amount of the impairment charge, if any. We recognize an impairment charge if the carrying value of the reporting unit's goodwill exceeds its estimated fair value.

Income Tax, Policy [Policy Text Block]

Income Taxes

We account for deferred income taxes under the liability method. We recognize deferred tax assets and liabilities based on the tax effects of temporary differences between the financial statement and tax bases of assets and liabilities, as measured by current enacted tax rates. Deferred tax assets and liabilities are recorded net as current and noncurrent deferred income taxes. A valuation allowance is recorded to reduce deferred tax assets when necessary. For additional information about our income taxes, see Note 12.

Manufacturers Credits [Policy Text Block]

Manufacturers' Credits

We periodically receive credits in connection with the acquisition of aircraft and engines. These credits are deferred until the aircraft and engines are delivered, and then applied on a pro rata basis as a reduction to the cost of the related equipment.

Maintenance Cost, Policy [Policy Text Block]

Maintenance Costs

We record maintenance costs to aircraft maintenance materials and outside repairs. Maintenance costs are expensed as incurred, except for costs incurred under power-by-the-hour contracts, which are expensed based on actual hours flown. Power-by-the-hour contracts transfer certain risk to third party service providers and fix the amount we pay per flight hour to the service provider in exchange for maintenance and repairs under a predefined maintenance program. Modifications that enhance the operating performance or extend the useful lives of airframes or engines are capitalized and amortized over the remaining estimated useful life of the asset or the remaining lease term, whichever is shorter.

Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block]

Advertising Costs

We expense advertising costs as other selling expenses in the year incurred. Advertising expense was approximately $200 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Commissions, Policy [Policy Text Block]

Commissions

Passenger sales commissions are recognized in operating expense when the related revenue is recognized.

XML

Quarterly Financial Data (Unaudited) (Notes)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

Quarterly Financial Information [Text Block]

QUARTERLY FINANCIAL DATA (UNAUDITED)

The following table summarizes our unaudited results of operations on a quarterly basis. The quarterly earnings (loss) per share amounts for a year will not add to the earnings per share for that year due to the weighting of shares used in calculating per share data.

	Three Months Ended
(in millions, except per share data)	March 31		June 30			September 30		December 31
2013
Operating revenue	$	8,500	$	9,707		$	10,490	$	9,076
Operating income	222		914			1,563		701
Net income	7		685			1,369		8,479
Basic earnings per share	$	0.01	$	0.81		$	1.61	$	10.02
Diluted earnings per share	$	0.01	$	0.80		$	1.59	$	9.89
2012
Operating revenue	$	8,413	$	9,732		$	9,923	$	8,602
Operating income	382		134			1,308		352
Net income (loss)	124		(168		)	1,047		7
Basic earnings (loss) per share	$	0.15	$	(0.20	)	$	1.24	$	0.01
Diluted earnings (loss) per share	$	0.15	$	(0.20	)	$	1.23	$	0.01

The following are included in the results above:

	Three Months Ended
(in millions)	March 31			June 30			September 30			December 31
2013
Facilities, fleet and other	$	(102	)	$	(34	)	$	(128	)	$	(160	)
MTM adjustments	24			(125		)	285			92
Release of tax valuation allowance	—			—			—			7,989
Total income (loss)	$	(78	)	$	(159	)	$	157		$	7,921
2012
Severance and related cost	$	—		$	(171	)	$	(66	)	$	—
Facilities, fleet and other	(27		)	(22		)	(122		)	(122		)
Gain on slot exchange	39			—			39			—
Loss on extinguishment of debt	—			—			(12		)	(106		)
MTM adjustments	151			(561		)	440			(3		)
Total income (loss)	$	163		$	(754	)	$	279		$	(231	)

XML

Dividend and Share Repurchase (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Dividend and Share Repurchase [Abstract]
Return of capital to shareholders				$ 1,000,000,000
Cash dividends declared per common share	$ 0.06	$ 0.06	$ 0.06	$ 0.12	$ 0	$ 0
Dividends Payable, Date of Record	Feb. 21, 2014	Nov. 06, 2013	Aug. 09, 2013
Dividends Payable, Date to be Paid	Mar. 14, 2014	Nov. 26, 2013	Sep. 10, 2013
Dividends, Cash				51,000,000
Stock Repurchase Program, Authorized Amount				500,000,000
Share repurchase program, completion date				Jun. 30, 2016
Stock Repurchased and Retired During Period, Shares				10
Stock Repurchased and Retired During Period, Value				$ 250,000,000
Dividends Payable, Date Declared	Feb. 07, 2014

XML

Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 4,420	$ 4,373
International routes and slots [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	2,287	2,240
Delta tradename [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	850	850
SkyTeam related assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	661	661
Domestic slots [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 622	$ 622

XML

Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

The following are included in the results above:

	Three Months Ended
(in millions)	March 31			June 30			September 30			December 31
2013
Facilities, fleet and other	$	(102	)	$	(34	)	$	(128	)	$	(160	)
MTM adjustments	24			(125		)	285			92
Release of tax valuation allowance	—			—			—			7,989
Total income (loss)	$	(78	)	$	(159	)	$	157		$	7,921
2012
Severance and related cost	$	—		$	(171	)	$	(66	)	$	—
Facilities, fleet and other	(27		)	(22		)	(122		)	(122		)
Gain on slot exchange	39			—			39			—
Loss on extinguishment of debt	—			—			(12		)	(106		)
MTM adjustments	151			(561		)	440			(3		)
Total income (loss)	$	163		$	(754	)	$	279		$	(231	)

	Three Months Ended
(in millions, except per share data)	March 31		June 30			September 30		December 31
2013
Operating revenue	$	8,500	$	9,707		$	10,490	$	9,076
Operating income	222		914			1,563		701
Net income	7		685			1,369		8,479
Basic earnings per share	$	0.01	$	0.81		$	1.61	$	10.02
Diluted earnings per share	$	0.01	$	0.80		$	1.59	$	9.89
2012
Operating revenue	$	8,413	$	9,732		$	9,923	$	8,602
Operating income	382		134			1,308		352
Net income (loss)	124		(168		)	1,047		7
Basic earnings (loss) per share	$	0.15	$	(0.20	)	$	1.24	$	0.01
Diluted earnings (loss) per share	$	0.15	$	(0.20	)	$	1.23	$	0.01

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

The following table shows our property and equipment:

		December 31,
(in millions, except for estimated useful life)	Estimated Useful Life	2013			2012
Flight equipment	21-30 years	$	23,373		$	21,481
Ground property and equipment	3-40 years	4,596			4,254
Flight and ground equipment under capital leases	Shorter of lease term or estimated useful life	1,296			1,381
Advance payments for equipment		381			253
Less: accumulated depreciation and amortization(1)		(7,792		)	(6,656		)
Total property and equipment, net		$	21,854		$	20,713

⁽¹⁾ Includes accumulated amortization for flight and ground equipment under capital leases in the amount of $657 million and $653 million at December 31, 2013 and 2012, respectively.

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Oil Refinery (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Segment results are prepared based on our internal accounting methods described below, with reconciliations to consolidated amounts in accordance with GAAP.

(in millions)	Airline		Refinery			Intersegment Sales/Other				Consolidated
Year Ended December 31, 2013
Operating revenue:	$	37,773	$	7,003						$	37,773
Sales to airline segment						$	(1,156	)	(1)
Exchanged products						(5,352		)	(2)
Sales of refined products to third parties						(495		)	(3)
Operating income (loss)	3,516		(116		)					3,400
Interest expense, net	698		—							698
Depreciation and amortization expense	1,641		17							1,658
Total assets, end of period	51,080		1,172							52,252
Capital expenditures	2,516		52							2,568
Year Ended December 31, 2012
Operating revenue:	$	36,670	$	1,347						$	36,670
Sales to airline segment						$	(213	)	(1)
Exchanged products						(1,121		)	(2)
Sales of refined products to third parties						(13		)	(3)
Operating income (loss)	2,238		(63		)					2,175
Interest expense, net	812		—							812
Depreciation and amortization expense	1,561		4							1,565
Total assets, end of period	43,386		1,164							44,550
Capital expenditures	1,637		331							1,968

⁽¹⁾ Represents transfers, valued on a market price basis, from the refinery to the airline segment for use in airline operations. We determine market price by reference to the market index for the primary delivery location for jet fuel from the refinery, which is New York Harbor.

⁽²⁾ Represents value of products exchanged under our buy/sell agreements, as discussed above, determined on a market price basis.

⁽³⁾ Represents sales of refined products to third parties. These sales were at or near cost; accordingly, the margin on these sales is de minimis.

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Consolidated Statements of Stockholders' Equity (Deficit) (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]
weighted average price per treasury share withheld for taxes	$ 14.97	$ 10.91	$ 9.63

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

(in millions)	December 31, 2013			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,487		$	2,487	$	—		$	—	(a)
Short-term investments	959			959		—			—		(a)
Restricted cash equivalents and investments	118			118		—			—		(a)
Long-term investments	109			80		29			—		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	314			16		298			—		(a)(b)
Interest rate contracts	(67		)	—		(67		)	—		(a)(b)
Foreign currency exchange contracts	257			—		257			—		(a)

(in millions)	December 31, 2012			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,176		$	2,176	$	—		$	—	(a)
Short-term investments	958			958		—			—		(a)
Restricted cash equivalents and investments	344			344		—			—		(a)
Long-term investments	208			100		27			81		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	249			27		222			—		(a)(b)
Interest rate contracts	(66		)	—		(66		)	—		(a)(b)
Foreign currency exchange contracts	123			—		123			—		(a)

⁽¹⁾  See Note 11, “Employee Benefit Plans”, for fair value of benefit plan assets.

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Employee Benefit Plans (Details 8) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Private Equity Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 1,366	$ 1,466	$ 1,517
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements	(262)	(95)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0
Real Estate Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	688	613	527
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements	(5)	89
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0
Hedge Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	552	484	432
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements	19	(2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		13
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0
Commingled Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	59	13	11
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements	44	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0
Benefit Plan Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	2,665	2,576	2,487
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements	(204)	(8)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		13
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0
Assets Still Held At The Reporting Date [Member] | Private Equity Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	98	0
Assets Still Held At The Reporting Date [Member] | Real Estate Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	61	(11)
Assets Still Held At The Reporting Date [Member] | Hedge Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	49	50
Assets Still Held At The Reporting Date [Member] | Commingled Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	2	2
Assets Still Held At The Reporting Date [Member] | Benefit Plan Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	210	41
Assets Sold During The Period [Member] | Private Equity Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	64	44
Assets Sold During The Period [Member] | Real Estate Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	19	8
Assets Sold During The Period [Member] | Hedge Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	0	(9)
Assets Sold During The Period [Member] | Commingled Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	0	0
Assets Sold During The Period [Member] | Benefit Plan Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)	$ 83	$ 43

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Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2013

Text Block [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table shows the components of accumulated other comprehensive income (loss):

(in millions)	Pension and Other Benefits Liabilities			Derivative Contracts(1)			Total
Balance at January 1, 2011	$	(3,271	)	$	(307	)	$	(3,578	)
Changes in value (net of tax effect of $0)	(3,062		)	5			(3,057		)
Reclassification into earnings (net of tax effect of $0)	41			(172		)	(131		)
Balance at December 31, 2011	(6,292		)	(474		)	(6,766		)
Changes in value (net of tax effect of $0)	(2,171		)	196			(1,975		)
Reclassification into earnings (net of tax effect of $0)	149			15			164
Balance at December 31, 2012	(8,314		)	(263		)	(8,577		)
Changes in value (net of tax effect of $0)	2,741			296			3,037
Reclassification into earnings (net of tax effect of $321)	224			186			410
Balance at December 31, 2013	$	(5,349	)	$	219		$	(5,130	)

⁽¹⁾  Included $321 million of deferred income tax expense that remained in AOCI until 2013 when all amounts in AOCI that related to fuel derivatives designated as accounting hedges were recognized in the Consolidated Statement of Operations.

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Derivatives and Risk Management (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain to be Reclassified within Twelve Months	$ 157
Effective Portion Reclassified from AOCI to Earnings	135	(15)	172
Effective Portion Recognized in Other Comprehensive Income (Loss)	161	211	(167)
Fuel Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion Reclassified from AOCI to Earnings	0	15	233
Effective Portion Recognized in Other Comprehensive Income (Loss)	0	(15)	(166)
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion Reclassified from AOCI to Earnings	0	(5)	0
Effective Portion Recognized in Other Comprehensive Income (Loss)	28	14	(8)
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion Reclassified from AOCI to Earnings	135	(25)	(61)
Effective Portion Recognized in Other Comprehensive Income (Loss)	$ 133	$ 212	$ 7

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Commitments and Contingencies (Details 2)	12 Months Ended
	Dec. 31, 2013
Delta Pilots
Entity Number of Employees	10,700
Union Representing Employee Group	ALPA
Date Which Collective Bargaining Agreement Becomes Amendable	Dec. 31, 2015
Delta Flight Superintendents (Dispatchers) [Member]
Entity Number of Employees	370
Union Representing Employee Group	PAFCA
Date Which Collective Bargaining Agreement Becomes Amendable	Dec. 31, 2013
Endeavor Air Pilots
Entity Number of Employees	1,820
Union Representing Employee Group	ALPA
Date Which Collective Bargaining Agreement Becomes Amendable	Jan. 01, 2020
Endeavor Air Flight Attendants
Entity Number of Employees	990
Union Representing Employee Group	AFA
Date Which Collective Bargaining Agreement Becomes Amendable	Dec. 31, 2018
Endeavor Air Dispatchers
Entity Number of Employees	60
Union Representing Employee Group	DISTWU
Date Which Collective Bargaining Agreement Becomes Amendable	Dec. 31, 2018

XML

Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets [Abstract]
Cash and cash equivalents	$ 2,844	$ 2,416
Short-term investments	959	958
Restricted cash, cash equivalents and short-term investments	122	375
Accounts receivable, net of an allowance for uncollectible accounts	1,609	1,693
Fuel Inventory	706	619
Expendable parts and supplies inventories, net of an allowance for obsolescence	357	404
Deferred income taxes, net	1,736	463
Prepaid expenses and other	1,318	1,344
Total current assets	9,651	8,272
Property and Equipment, Net [Abstract]
Property and equipment, net of accumulated depreciation and amortization	21,854	20,713
Other Assets [Abstract]
Goodwill	9,794	9,794
Identifiable intangibles, net of accumulated amortization	4,658	4,679
Deferred income taxes, net	4,992	0
Other noncurrent assets	1,303	1,092
Total other assets	20,747	15,565
Total assets	52,252	44,550
Current Liabilities [Abstract]
Current maturities of long-term debt and capital leases	1,547	1,627
Air traffic liability	4,122	3,696
Accounts payable	2,300	2,293
Accrued salaries and related benefits	1,926	1,680
Frequent flyer deferred revenue	1,861	1,806
Taxes payable	673	585
Fuel card obligation	602	455
Other accrued liabilities	1,121	1,128
Total current liabilities	14,152	13,270
Noncurrent Liabilities [Abstract]
Long-term debt and capital leases	9,795	11,082
Pension, postretirement and related benefits	12,392	16,005
Frequent flyer deferred revenue	2,559	2,628
Deferred income taxes, net	0	2,047
Other noncurrent liabilities	1,711	1,649
Total noncurrent liabilities	26,457	33,411
Commitments and Contingencies	0	0
Stockholders' Equity (Deficit) [Abstract]
Common stock	0	0
Additional paid-in capital	13,982	14,069
Retained earnings (Accumulated deficit)	3,049	(7,389)
Accumulated other comprehensive loss	(5,130)	(8,577)
Treasury stock, at cost	(258)	(234)
Total stockholders' equity (deficit)	11,643	(2,131)
Total liabilities and stockholders' equity (deficit)	$ 52,252	$ 44,550

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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Accumulated Depreciation and Amortization	$ (7,792)	$ (6,656)
Property and equipment, net of accumulated depreciation and amortization	21,854	20,713
Flight Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	23,373	21,481
Long-Lived Assets, Estimated Useful Lives	21-30 years
Ground Property and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4,596	4,254
Long-Lived Assets, Estimated Useful Lives	3-40 years
Flight and Ground Equipment Under Capital Lease [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,296	1,381
Accumulated Depreciation and Amortization	657	653
Long-Lived Assets, Estimated Useful Lives	Shorter of lease term or estimated useful life
Advance Payments for Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 381	$ 253

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Restructuring and Other Items (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Severance and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Liability at beginning of period	$ 49	$ 46	$ 20
Additional costs and expenses	0	126	100
Other restructuring adjustments	(3)	0	0
Restructuring payments	(46)	(123)	(74)
Liability at end of period	0	49	46
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Liability at beginning of period	77	64	85
Additional costs and expenses	114	45	0
Other restructuring adjustments	(5)	0	0
Restructuring payments	(18)	(32)	(21)
Liability at end of period	$ 168	$ 77	$ 64

XML

Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income	$ 10,540	$ 1,009	$ 854
Depreciation and amortization	1,658	1,565	1,523
Amortization of Debt Discount, net	154	193	193
Fuel hedge derivative contracts	(114)	(209)	135
Deferred Income Taxes	(7,991)	17	(2)
Pension, postretirement and postemployment expense less than payments	(624)	(208)	(308)
Restructuring and Other Items	285	184	142
SkyMiles used pursuant to advance purchase under American Express Agreements	(333)	(333)	(49)
Receivables	90	(116)	(76)
Restricted Cash and Cash Equivalents	231	(51)	153
Fuel Inventory	(87)	(451)	(8)
Prepaid Expenses and Other Current Assets	28	(134)	(8)
Air Traffic Liability	426	216	174
Frequent Flyer Deferred Revenue	(121)	(115)	82
Accounts Payable and Accrued Liabilities	213	899	303
Other Assets and Liabilities	(36)	(66)	(373)
Other Operating Activities, net	185	76	99
Net Cash Provided by Operating Activities	4,504	2,476	2,834
Net Cash Provided by (Used in) Investing Activities [Abstract]
Flight Equipment, including advance payments	(2,117)	(1,196)	(907)
Ground Property and Equipment, including technology	(451)	(772)	(347)
Purchase of Virgin Atlantic shares	(360)	0	0
Purchase of Short-term Investments	(959)	(958)	(1,078)
Redemption of short-term investments	1,117	1,019	844
Other Investing Activities, net	14	(55)	(10)
Net Cash Used in Investing Activities	(2,756)	(1,962)	(1,498)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Payments on Long-term Debt and Capital Lease Obligations	(1,461)	(2,864)	(4,172)
Cash Dividends	(102)	0	0
Proceeds from Long-term Obligations	268	1,965	2,395
Repurchase of Common Stock	(250)	0	0
Fuel Card Obligation	147	137	318
Other Financing Activities, net	78	7	(112)
Net Cash Used in Financing Activities	(1,320)	(755)	(1,571)
Net Increase (Decrease) in Cash and Cash Equivalents	428	(241)	(235)
Cash and Cash Equivalents at beginning of period	2,416	2,657	2,892
Cash and Cash Equivalents at end of period	2,844	2,416	2,657
Supplemental Disclosure of Cash Paid for Interest	698	834	925
Other Noncash Investing and Financing Items [Abstract]
Flight Equipment under Capital Leases	67	28	117
Built-to-suit Leased Facilities	114	214	126
American Express advance purchase of restricted SkyMiles	$ 285	$ 0	$ 0

XML

Geographic Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Total Operating Revenue	$ 9,076	$ 10,490	$ 9,707	$ 8,500	$ 8,602	$ 9,923	$ 9,732	$ 8,413	$ 37,773	$ 36,670	$ 35,115
Domestic [Member]
Total Operating Revenue									24,857	23,989	22,722
Atlantic [Member]
Total Operating Revenue									6,446	6,329	6,486
Pacific [Member]
Total Operating Revenue									4,086	4,198	3,644
Latin America [Member]
Total Operating Revenue									$ 2,384	$ 2,154	$ 2,263

XML

Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Number of Slot Pairs Acquired			132
Number of Slot Pairs Sold			42
Payments to Acquire Intangible Assets			$ 67
Proceeds from Sale of Intangible Assets			90
Restructuring and other items	402	452	242
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			50
Definite-Lived Intangible Assets, Amortization Expense	70	70	70
Gain on slot exchange and divestiture [Member] [Member]
Restructuring and other items			(43)
Routes and slots [Member]
Restructuring and other items	0	(78)	7
Net loss from restructuring and other charges [Member]
Restructuring and other items			$ 7
LaGuardia [Member]
Number of Slot Pairs Divested			16
Reagan National [Member]
Number of Slot Pairs Divested			8

XML

Other Investments (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Equity Method Investments [Line Items]
Acquisition of Endeavor	$ 30,000,000
Number of Aircraft Acquired	16
Fair Value of Assets Acquired	270,000,000
Aircraft Debt Assumed	240,000,000
Number of Aircraft Leased by Endeavor	169
Virgin Atlantic Ownership Percentage	49.00%
Equity Method Investments	60,000,000
Purchase Price [Member]
Equity Method Investments [Line Items]
Equity Method Investments	$ 360,000,000

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Long Term Debt (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

The following table summarizes our long-term debt:

	Maturity			Interest Rate(s) Per Annum at			December 31,
(in millions)	Dates			December 31, 2013			2013			2012
Pacific Facilities:
Pacific Term Loan B-1(2)	October 2018			4.00%	variable(1)		$	1,089		$	1,100
Pacific Term Loan B-2(2)	April 2016			3.25%	variable(1)		396			400
Pacific Revolving Facility ($450)	October 2017			undrawn	variable(1)		—			—
2011 Credit Facilities:
Term Loan Facility(2)	April 2017			3.50%	variable(1)		1,341			1,354
Revolving Credit Facility ($1,225)	April 2016			undrawn	variable(1)		—			—
Other Secured Financing Arrangements:
Certificates(2)(3)	2014	to	2023	4.75%	to	9.75%	3,834			4,314
Aircraft financings(2)(3)	2014	to	2025	0.64%	to	6.76%	3,787			3,964
Other financings(2)(4)	2014	to	2031	0.00%	to	6.12%	627			707
Other Revolving Credit Facilities ($250)	2014	to	2015	undrawn	variable(1)		—			—
Total secured debt							11,074			11,839
American Express - Advance Purchase of Restricted SkyMiles(5)							—			619
Other unsecured debt(2)	2014	to	2035	3.01%	to	9.00%	154			175
Total unsecured debt							154			794
Total secured and unsecured debt							11,228			12,633
Unamortized discount, net							(383		)	(527		)
Total debt							10,845			12,106
Less: current maturities							(1,449		)	(1,507		)
Total long-term debt							$	9,396		$	10,599

⁽¹⁾  Interest rate equal to LIBOR (generally subject to a floor) or another index rate, in each case plus a specified margin.

⁽²⁾  Due in installments.

⁽³⁾  Secured by aircraft.

⁽⁴⁾  Primarily includes loans secured by spare parts, spare engines and real estate.

⁽⁵⁾  For additional information about our debt associated with American Express, see Note 7.

	Pacific Facilities	2011 Credit Facilities
Minimum Fixed Charge Coverage Ratio (1)	1.20:1	1.20:1
Minimum Unrestricted Liquidity
Unrestricted cash and permitted investments	n/a	$1.0 billion
Unrestricted cash, permitted investments and undrawn revolving credit facilities	$2.0 billion	$2.0 billion
Minimum Collateral Coverage Ratio (2)	1.60:1	1.67:1 (3)

⁽¹⁾  Defined as the ratio of (a) earnings before interest, taxes, depreciation, amortization and aircraft rent and other adjustments to net income to (b) the sum of gross cash interest expense (including the interest portion of our capitalized lease obligations) and cash aircraft rent expense, for the 12-month period ending as of the last day of each fiscal quarter.

⁽²⁾  Defined as the ratio of (a) certain of the collateral that meets specified eligibility standards to (b) the sum of the aggregate outstanding obligations and certain other obligations.

⁽³⁾  Excluding the non-Pacific international routes from the collateral for purposes of the calculation, the required minimum collateral coverage ratio is 0.75:1

	December 31,
(in millions)	2013			2012
Total debt at par value	$	11,228		$	12,633
Unamortized discount, net	(383		)	(527		)
Net carrying amount	$	10,845		$	12,106
Fair value	$	11,600		$	13,000

Schedule of Line of Credit Facilities [Table Text Block]

The table below shows availability under revolving credit facilities, all of which were undrawn, as of December 31, 2013:

(in millions)
Revolving Credit Facility	$	1,225
Pacific Revolving Credit Facility	450
Other Revolving Credit Facilities	250
Total availability under revolving credit facilities	$	1,925

Schedule of Maturities of Long-term Debt [Table Text Block]

The following table summarizes scheduled maturities of our debt, including current maturities, at December 31, 2013:

Years Ending December 31, (in millions)	Total Secured and Unsecured Debt		Amortization of Debt Discount, net
2014	$	1,491	$	(80	)
2015	1,089		(73		)
2016	1,472		(67		)
2017	2,190		(58		)
2018	2,159		(47		)
Thereafter	2,827		(58		)
Total	$	11,228	$	(383	)	$	10,845

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Long Term Debt (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]
Long-term Debt, Gross	$ 11,228	$ 12,633
Debt Instrument, Unamortized Discount (Premium), Net	(383)	(527)
Debt, Long-term and Short-term, Combined Amount	10,845	12,106
Debt Instrument, Fair Value Disclosure	$ 11,600	$ 13,000

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Accumulated Other Comprehensive Income (Loss) (Notes)

12 Months Ended

Dec. 31, 2013

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss) Note [Text Block]

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following table shows the components of accumulated other comprehensive income (loss):

(in millions)	Pension and Other Benefits Liabilities			Derivative Contracts(1)			Total
Balance at January 1, 2011	$	(3,271	)	$	(307	)	$	(3,578	)
Changes in value (net of tax effect of $0)	(3,062		)	5			(3,057		)
Reclassification into earnings (net of tax effect of $0)	41			(172		)	(131		)
Balance at December 31, 2011	(6,292		)	(474		)	(6,766		)
Changes in value (net of tax effect of $0)	(2,171		)	196			(1,975		)
Reclassification into earnings (net of tax effect of $0)	149			15			164
Balance at December 31, 2012	(8,314		)	(263		)	(8,577		)
Changes in value (net of tax effect of $0)	2,741			296			3,037
Reclassification into earnings (net of tax effect of $321)	224			186			410
Balance at December 31, 2013	$	(5,349	)	$	219		$	(5,130	)

⁽¹⁾  Included $321 million of deferred income tax expense that remained in AOCI until 2013 when all amounts in AOCI that related to fuel derivatives designated as accounting hedges were recognized in the Consolidated Statement of Operations.

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Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2013

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]

Capital Leases

Years Ending December 31, (in millions)	Total
2014	$	165
2015	158
2016	143
2017	100
2018	54
Thereafter	74
Total minimum lease payments	694
Less: amount of lease payments representing interest	(197		)
Present value of future minimum capital lease payments	497
Less: current obligations under capital leases	(98		)
Long-term capital lease obligations	$	399

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Operating Leases

Years Ending December 31, (in millions)	Delta Lease Payments(1)		Contract Carrier Aircraft Lease Payments(2)		Total
2014	$	1,079	$	350	$	1,429
2015	1,028		328		1,356
2016	900		286		1,186
2017	785		241		1,026
2018	635		196		831
Thereafter	5,442		224		5,666
Total minimum lease payments	$	9,869	$	1,625	$	11,494

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Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Net Income	$ 8,479	$ 1,369	$ 685	$ 7	$ 7	$ 1,047	$ (168)	$ 124	$ 10,540	$ 1,009	$ 854
Basic weighted average shares outstanding									849	845	838
Dilutive effects of share based awards									9	5	6
Diluted weighted average shares outstanding									858	850	844
Basic earnings per share	$ 10.02	$ 1.61	$ 0.81	$ 0.01	$ 0.01	$ 1.24	$ (0.20)	$ 0.15	$ 12.41	$ 1.20	$ 1.02
Diluted earnings per share	$ 9.89	$ 1.59	$ 0.80	$ 0.01	$ 0.01	$ 1.23	$ (0.20)	$ 0.15	$ 12.29	$ 1.19	$ 1.01
Antidilutive common stock equivalents excluded from diluted earnings per share									8	18	17

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Restructuring and Other Items (Notes)

12 Months Ended

Dec. 31, 2013

Restructuring and Related Activities [Abstract]

Restructuring and Related Activities Disclosure [Text Block]

RESTRUCTURING AND OTHER ITEMS

The following table shows amounts recorded in restructuring and other items on our Consolidated Statements of Operations:

	Year Ended December 31,
(in millions)	2013		2012			2011
Facilities, fleet and other	$	402	$	293		$	135
Severance and related costs	—		237			100
Routes and slots (See Note 6)	—		(78		)	7
Total restructuring and other items	$	402	$	452		$	242

Facilities, Fleet and Other. We recorded restructuring charges of $402 million and $293 million during 2013 and 2012 primarily related to our fleet restructuring initiative. Under the fleet restructuring initiative, we are focused on removing older, less efficient aircraft from our fleet and replacing them with B-737-900ER, B-717-200 and CRJ-900 aircraft that we have committed to acquire. The 2013 and 2012 restructuring charges are related to older, retiring aircraft, including remaining lease payments for grounded aircraft, the acceleration of aircraft depreciation and lease return costs and related equipment disposals. As an extension of our fleet restructuring initiative and our desire to reduce the number of regional jets in our network, we shut down the operations of Comair, a wholly-owned regional airline subsidiary, as of September 29, 2012. The restructuring charges in 2012 also include amounts associated with the closure of Comair.

During 2011, we recorded charges related to consolidation of facilities and certain aircraft that were removed from our operations.

An important component of the fleet restructuring initiative is to reduce 50-seat CRJ aircraft, which are our least fuel efficient aircraft and have the lowest customer satisfaction ratings. We are targeting a fleet size of 100 to 125 aircraft within the next two years. Our current fleet includes aircraft we lease and aircraft that are operated for us by regional carriers that own or lease aircraft through third parties. As part of the reduction, we will retire a significant portion of the fleet that is leased by us. We expect to continue to recognize material restructuring charges as we retire the leased aircraft for the remaining obligations under the leases. Although many factors could change over the next two years, we currently estimate that future charges will be between $200 million to $300 million, in addition to the $107 million recorded in 2013. The timing and amount of these charges will depend on a number of factors, including our final negotiations with lessors, the timing of removing aircraft from service and the ultimate disposition of aircraft included in the fleet restructuring program. Also, to accelerate the restructuring of the fleet, we may park a portion of the fleet on a temporary basis until contracts for aircraft flying under contract carrier agreements expire. The temporarily parked aircraft will be returned to service as aircraft flying under these expiring agreements exit the fleet. We will continue to incur operating lease expense for these temporarily parked aircraft. As a result of restructuring the fleet, we expect to benefit from improved operational and fuel efficiency, customer service and reduced future maintenance cost that we will experience over the life of the new aircraft.

Severance and Related Costs. During 2012, we recognized a severance charge of $237 million, which included $116 million of special termination benefits (see Note 11). We offered voluntary severance programs in which more than 2,000 employees elected to participate. These participants became eligible for retiree healthcare benefits. Also, we accrued $66 million in severance and related costs in 2012 to provide severance benefits to Comair's 1,700 employees, as we ceased operations at the carrier.

During 2011, we recorded charges associated primarily with voluntary workforce reduction programs to align staffing with expected future capacity.

Gain on Slot Exchange. During December 2011, we closed transactions with US Airways where we received takeoff and landing rights (each a "slot pair") at LaGuardia in exchange for slot pairs at Reagan National. In approving these transactions, the Department of Transportation restricted our use of the exchanged slots. We recorded a $78 million deferred gain in December 2011. We recognized this deferred gain in 2012 as the restrictions lapsed.

The following table shows the balances and activity for restructuring charges:

	Severance and Related Costs									Lease Restructuring
(in millions)	2013			2012			2011			2013			2012			2011
Liability at beginning of period	$	49		$	46		$	20		$	77		$	64		$	85
Additional costs and expenses	—			126			100			114			45			—
Other	(3		)	—			—			(5		)	—			—
Payments	(46		)	(123		)	(74		)	(18		)	(32		)	(21		)
Liability at end of period	$	—		$	49		$	46		$	168		$	77		$	64

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Lease Obligations (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Mainline [Member]
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Current	$ 1,079	[1]
Operating Leases, Future Minimum Payments, Due in Two Years	1,028	[1]
Operating Leases, Future Minimum Payments, Due in Three Years	900	[1]
Operating Leases, Future Minimum Payments, Due in Four Years	785	[1]
Operating Leases, Future Minimum Payments, Due in Five Years	635	[1]
Operating Leases, Future Minimum Payments, Due Thereafter	5,442	[1]
Operating Leases, Future Minimum Payments Due	9,869	[1]
Regional Carrier [Member]
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Current	350
Operating Leases, Future Minimum Payments, Due in Two Years	328
Operating Leases, Future Minimum Payments, Due in Three Years	286
Operating Leases, Future Minimum Payments, Due in Four Years	241
Operating Leases, Future Minimum Payments, Due in Five Years	196
Operating Leases, Future Minimum Payments, Due Thereafter	224
Operating Leases, Future Minimum Payments Due	1,625
Reporting Entity [Member]
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Current	1,429
Operating Leases, Future Minimum Payments, Due in Two Years	1,356
Operating Leases, Future Minimum Payments, Due in Three Years	1,186
Operating Leases, Future Minimum Payments, Due in Four Years	1,026
Operating Leases, Future Minimum Payments, Due in Five Years	831
Operating Leases, Future Minimum Payments, Due Thereafter	5,666
Operating Leases, Future Minimum Payments Due	$ 11,494

[1] (1) Includes payments accounted for as construction obligations. See Note 5.

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Consolidated Statements of Stockholders' Equity (Deficit) (USD $) In Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Delta's Plan of Reorganization [Member]	Delta's Plan of Reorganization [Member] Common Stock [Member]
Stockholders' Equity (Deficit) Period Start at Dec. 31, 2010	$ 897	$ 0	$ 13,926	$ (9,252)	$ (3,578)	$ (199)
Shares, Issued Period Start at Dec. 31, 2010		848				13
Net Income	854			854
Other comprehensive income (loss)	(3,188)				(3,188)
Shares of common stock issued to settle bankruptcy claims under Plans of Reorganization								10
Shares of common stock issued to settle bankruptcy claims under Plans of Reorganization							0	0
Shares of common stock issued and compensation expense associated with equity awards		3
Shares of common stock issued and compensation expense associated with equity awards	40	0
Shares of common stock issued and compensation expense associated with equity awards			72
Shares of common stock issued and compensation expense associated with equity awards						3
Shares of common stock issued and compensation expense associated with equity awards						(32)
Stock options exercised		0
Stock options exercised	1	0
Stock options exercised			1
Stockholders' Equity (Deficit) Period End at Dec. 31, 2011	(1,396)	0	13,999	(8,398)	(6,766)	(231)
Shares, Issued Period End at Dec. 31, 2011		861				16
Net Income	1,009			1,009
Other comprehensive income (loss)	(1,811)				(1,811)
Shares of common stock issued and compensation expense associated with equity awards		5
Shares of common stock issued and compensation expense associated with equity awards	51	0
Shares of common stock issued and compensation expense associated with equity awards			54
Shares of common stock issued and compensation expense associated with equity awards						0
Shares of common stock issued and compensation expense associated with equity awards						(3)
Stock options exercised		2
Stock options exercised	16	0
Stock options exercised			16
Stockholders' Equity (Deficit) Period End at Dec. 31, 2012	(2,131)	0	14,069	(7,389)	(8,577)	(234)
Shares, Issued Period End at Dec. 31, 2012		868				16
Net Income	10,540			10,540
Dividends declared	(102)			(102)
Other comprehensive income (loss)	3,447				3,447
Shares of common stock issued and compensation expense associated with equity awards		5
Shares of common stock issued and compensation expense associated with equity awards	66	0
Shares of common stock issued and compensation expense associated with equity awards			90
Shares of common stock issued and compensation expense associated with equity awards						2
Shares of common stock issued and compensation expense associated with equity awards						(24)
Stock options exercised		6
Stock options exercised	73	0
Stock options exercised			73
Stock purchased and retired	(10)
Stock purchased and retired	(250)	0	(250)
Stockholders' Equity (Deficit) Period End at Dec. 31, 2013	$ 11,643	$ 0	$ 13,982	$ 3,049	$ (5,130)	$ (258)
Shares, Issued Period End at Dec. 31, 2013		869				18

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Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets [Abstract]
Allowance for Uncollectible Accounts	$ 23	$ 36
Allowance for Obsolescence	118	127
Property, Plant and Equipment [Abstract]
Accumulated Depreciation and Amortization	7,792	6,656
Other Assets [Abstract]
Accumulated Amortization	$ 738	$ 670
Stockholders' Equity (Deficit) [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Shares, Issued	869,484,981	867,866,505
Treasury Stock, at cost, shares	18,041,848	16,464,472

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Lease Obligations (Notes)

12 Months Ended

Dec. 31, 2013

Leases [Abstract]

Leases of Lessee Disclosure [Text Block]

LEASE OBLIGATIONS

We lease aircraft, airport terminals, maintenance facilities, ticket offices and other property and equipment from third parties. Rental expense for operating leases, which is recorded on a straight-line basis over the life of the lease term, totaled approximately $1.1 billion for each of the years ended December 31, 2013, 2012 and 2011. Amounts due under capital leases are recorded as liabilities, while assets acquired under capital leases are recorded as property and equipment. Amortization of assets recorded under capital leases is included in depreciation and amortization expense. Our airport terminal leases include contingent rents, which vary based upon: facility usage, enplanements, aircraft weight and other factors. Many of our aircraft, facility and equipment leases include rental escalation clauses and/or renewal options. Our leases do not include residual value guarantees and we are not the primary beneficiary in or have other forms of variable interest with the lessor of the leased assets. As a result, we have not consolidated any of the entities that lease to us.

The following tables summarize, as of December 31, 2013, our minimum rental commitments under capital leases and noncancelable operating leases (including certain aircraft flown by Contract Carriers) with initial or remaining terms in excess of one year:

Capital Leases

Years Ending December 31, (in millions)	Total
2014	$	165
2015	158
2016	143
2017	100
2018	54
Thereafter	74
Total minimum lease payments	694
Less: amount of lease payments representing interest	(197		)
Present value of future minimum capital lease payments	497
Less: current obligations under capital leases	(98		)
Long-term capital lease obligations	$	399

Operating Leases

Years Ending December 31, (in millions)	Delta Lease Payments(1)		Contract Carrier Aircraft Lease Payments(2)		Total
2014	$	1,079	$	350	$	1,429
2015	1,028		328		1,356
2016	900		286		1,186
2017	785		241		1,026
2018	635		196		831
Thereafter	5,442		224		5,666
Total minimum lease payments	$	9,869	$	1,625	$	11,494

⁽¹⁾  Includes payments accounted for as construction obligations. See Note 5.

⁽²⁾  Represents the minimum lease obligations under our Contract Carrier agreements with Chautauqua Airlines, Inc. (“Chautauqua”), Compass Airlines, Inc., ExpressJet Airlines, Inc., GoJet Airlines, LLC, Shuttle America Corporation (“Shuttle America”) and SkyWest Airlines, Inc.

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Accumulated Other Comprehensive Income (Loss) (Parentheticals) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009
Accumulated Other Comprehensive Income (Loss) [Abstract]
Deferred Income Taxes	$ 0	$ 0	$ 0
Non Cash Income Tax Expense Recorded In Other Comprehensive Income				$ 321

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Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Pension and Other Benefit Liabilities, Net of Tax	$ (5,349)	$ (8,314)	$ (6,292)	$ (3,271)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Derivative Contracts Net of Tax	219	(263)	(474)	(307)
Accumulated Other Comprehensive Loss	(5,130)	(8,577)	(6,766)	(3,578)
Other Comprehensive Income (Loss), Pension and Other Benefit Liabilities, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	2,741	(2,171)	(3,062)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	296	196	5
Accumulated Other Comprehensive Income Loss Changes In Fair Value Net of Tax	3,037	(1,975)	(3,057)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Benefit Liabilities, Net of Tax	224	149	41
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	186	15	(172)
Accumulated Other Comprehensive Income (Loss) Reclassification To Earnings Net of Tax	$ 410	$ 164	$ (131)

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Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Jan. 31, 2014	Jun. 30, 2013
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Entity Registrant Name	DELTA AIR LINES INC /DE/
Entity Central Index Key	0000027904
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 16.1
Entity Common Stock, Shares Outstanding		849,378,918

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Commitments and Contingencies (Notes)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Aircraft Purchase and Lease Commitments

At December 31, 2013, future aircraft purchase commitments total approximately $9.1 billion and include 88 B-737-900ER, 30 A321-200, 28 CRJ-900, 18 B-787-8 aircraft and 10 A330-300 aircraft. We have obtained long-term financing commitments for a substantial portion of the purchase price of all of these aircraft, except for the 18 B-787-8 aircraft. Our purchase commitment for the 18 B-787-8 aircraft provides for certain aircraft substitution rights.

Years Ending December 31, (in millions)	Total
2014	$	1,585
2015	1,215
2016	1,700
2017	1,495
2018	450
Thereafter	2,700
Total	$	9,145

We also have agreements with Southwest Airlines and The Boeing Company to lease 88 B-717-200 aircraft. We took delivery of 13 B-717-200 aircraft during 2013 and deliveries will continue through 2015.

Contract Carrier Agreements

We have contract carrier agreements with regional carriers with agreements expiring from 2016 to 2022.

Capacity Purchase Agreements. Most of our Contract Carriers operate for us under capacity purchase agreements. Under these agreements, the Contract Carriers operate some or all of their aircraft using our flight designator codes, and we control the scheduling, pricing, reservations, ticketing and seat inventories of those aircraft and retain the revenues associated with those flights. We pay those airlines an amount, as defined in the applicable agreement, which is based on a determination of their cost of operating those flights and other factors intended to approximate market rates for those services.

The following table shows our minimum fixed obligations under our existing capacity purchase agreements. The obligations set forth in the table contemplate minimum levels of flying by the Contract Carriers under the respective agreements and also reflect assumptions regarding certain costs associated with the minimum levels of flying such as the cost of fuel, labor, maintenance, insurance, catering, property tax and landing fees. Accordingly, our actual payments under these agreements could differ materially from the minimum fixed obligations set forth in the table below.

Years Ending December 31, (in millions)	Amount(1)
2014	$	2,110
2015	2,040
2016	1,780
2017	1,560
2018	1,320
Thereafter	1,930
Total	$	10,740

⁽¹⁾  These amounts exclude Contract Carrier payments accounted for as operating leases of aircraft, which are described in Note 9. The contingencies described below under “Contingencies Related to Termination of Contract Carrier Agreements” are also excluded from this table.

Revenue Proration Agreement. As of December 31, 2013, a portion of our Contract Carrier agreement with SkyWest Airlines, Inc. is structured as a revenue proration agreement. This revenue proration agreement establishes a fixed dollar or percentage division of revenues for tickets sold to passengers traveling on connecting flight itineraries.

Contingencies Related to Termination of Contract Carrier Agreements

We may terminate without cause our agreement with Chautauqua at any time and our agreement with Shuttle America at any time after January 2016 by providing certain advance notice. If we terminate either the Chautauqua or Shuttle America agreements without cause, Chautauqua or Shuttle America, respectively, has the right to (1) assign to us leased aircraft that the airline operates for us, provided we are able to continue the leases on the same terms the airline had prior to the assignment and (2) require us to purchase or lease any aircraft the airline owns and operates for us at the time of the termination. If we are required to purchase aircraft owned by Chautauqua or Shuttle America, the purchase price would be equal to the amount necessary to (1) reimburse Chautauqua or Shuttle America for the equity it provided to purchase the aircraft and (2) repay in full any debt outstanding at such time that is not being assumed in connection with such purchase. If we are required to lease aircraft owned by Chautauqua or Shuttle America, 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. Because these contingencies depend on our termination of the agreements without cause prior to their expiration dates, no obligation exists unless such termination occurs.

We estimate that the total fair values, determined as of December 31, 2013, of the aircraft Chautauqua or Shuttle America could assign to us or require that we purchase if we terminate without cause our contract carrier agreements with those airlines (the "Put Right") are approximately $119 million and $294 million, respectively. The actual amount we may be required to pay in these circumstances may be materially different from these estimates. If the Put Right is exercised, we must also pay the exercising carrier 10% interest (compounded monthly) on the equity the carrier provided when it purchased the put aircraft. These equity amounts for Chautauqua and Shuttle America total $25 million and $52 million, respectively.

Legal Contingencies

We are involved in various legal proceedings related to employment practices, environmental issues, antitrust matters and other matters concerning our business. We record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount of loss can be reasonably estimated. We cannot reasonably estimate the potential loss for certain legal proceedings because, for example, the litigation is in its early stages or the plaintiff does not specify the damages being sought. Although the outcome of the legal proceedings in which we are involved cannot be predicted with certainty, management believes that the resolution of these matters will not have a material adverse effect on our Consolidated Financial Statements.

Credit Card Processing Agreements

Our VISA/MasterCard and American Express credit card processing agreements provide that no cash reserve ("Reserve") is required, and no withholding of payment related to receivables collected will occur, except in certain circumstances, including when we do not maintain a required level of liquidity as outlined in the merchant processing agreements. In circumstances in which the credit card processor can establish a Reserve or withhold payments, the amount of the Reserve or payments that may be withheld would be equal to the potential liability of the credit card processor for tickets purchased with VISA/MasterCard or American Express credit cards, as applicable, that had not yet been used for travel. There was no Reserve or amounts withheld as of December 31, 2013 and 2012.

Other Contingencies

General Indemnifications

We are the lessee under many commercial real estate leases. It is common in these transactions for us, as the lessee, to agree to indemnify the lessor and the lessor's related parties for tort, environmental and other liabilities that arise out of or relate to our use or occupancy of the leased premises. This type of indemnity would typically make us responsible to indemnified parties for liabilities arising out of the conduct of, among others, contractors, licensees and invitees at, or in connection with, the use or occupancy of the leased premises. This indemnity often extends to related liabilities arising from the negligence of the indemnified parties, but usually excludes any liabilities caused by either their sole or gross negligence or their willful misconduct.

Our aircraft and other equipment lease and financing agreements typically contain provisions requiring us, as the lessee or obligor, to indemnify the other parties to those agreements, including certain of those parties' related persons, against virtually any liabilities that might arise from the use or operation of the aircraft or such other equipment.

We believe that our insurance would cover most of our exposure to liabilities and related indemnities associated with the commercial real estate leases and aircraft and other equipment lease and financing agreements described above. While our insurance does not typically cover environmental liabilities, we have certain insurance policies in place as required by applicable environmental laws.

Certain of our aircraft and other financing transactions include provisions that require us to make payments to preserve an expected economic return to the lenders if that economic return is diminished due to certain changes in law or regulations. In certain of these financing transactions, we also bear the risk of certain changes in tax laws that would subject payments to non-U.S. lenders to withholding taxes.

We cannot reasonably estimate our potential future payments under the indemnities and related provisions described above because we cannot predict (1) when and under what circumstances these provisions may be triggered and (2) the amount that would be payable if the provisions were triggered because the amounts would be based on facts and circumstances existing at such time.

Employees Under Collective Bargaining Agreements

At December 31, 2013, we had approximately 78,000 full-time equivalent employees, approximately 18% of whom were represented by unions. The following table shows our domestic airline employee groups that are represented by unions.

Employee Group	Approximate Number of Active Employees Represented	Union	Date on which Collective Bargaining Agreement Becomes Amendable
Delta Pilots	10,700	ALPA	December 31, 2015
Delta Flight Superintendents (Dispatchers)(1)	370	PAFCA	December 31, 2013
Endeavor Air Pilots	1,820	ALPA	January 1, 2020
Endeavor Air Flight Attendants	990	AFA	December 31, 2018
Endeavor Air Dispatchers	60	DISTWU	December 31, 2018

⁽¹⁾ We are in discussions with representatives of the Flight Superintendents.

In addition, 210 refinery employees of Monroe are represented by the United Steel Workers under an agreement that expires on February 26, 2015.

Labor unions periodically engage in organizing efforts to represent various groups of our employees, including at our operating subsidiaries, that are not represented for collective bargaining purposes.

War-Risk Insurance Contingency

As a result of the terrorist attacks on September 11, 2001, aviation insurers significantly (1) reduced the maximum amount of insurance coverage available to commercial air carriers for liability to persons (other than employees or passengers) for claims from acts of terrorism, war or similar events and (2) increased the premiums for such coverage. Since September 24, 2001, the U.S. government has been providing U.S. airlines with war-risk insurance to cover losses, including those resulting from terrorism, to passengers, third parties (ground damage) and the aircraft hull. The U.S. Secretary of Transportation has extended coverage through September 30, 2014, and we expect the coverage to be further extended. The withdrawal of government support of airline war-risk insurance would require us to obtain war-risk insurance coverage commercially. Such commercial insurance could have substantially less desirable coverage than currently provided by the U.S. government, may not be adequate to protect our risk of loss from future acts of terrorism or, may result in a material increase to our operating expense.

Other

We have certain contracts for goods and services that require us to pay a penalty, acquire inventory specific to us or purchase contract specific equipment, as defined by each respective contract, if we terminate the contract without cause prior to its expiration date. Because these obligations are contingent on our termination of the contract without cause prior to its expiration date, no obligation would exist unless such a termination occurs.

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Employee Benefit Plans (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	$ 1,128
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	1,136
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	1,154
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	1,175
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	1,194
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	6,226
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	272
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	272
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	273
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	270
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	264
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	$ 1,311

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Equity and Equity Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Capital Stock Shares Authorized	2,000,000,000
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	500,000,000
Treasury Stock Acquired, Weighted Average Cost Per Share	$ 14.31	$ 14.24
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	157,000,000
Capital Stock Shares Authorized	28,000,000
Share-based Compensation	$ 90	$ 54	$ 72
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	45
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	7,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	8,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 11.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	7,000,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 0	$ 0

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Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Passenger Revenue [Abstract]
Passenger Revenue, Mainline	$ 26,534	$ 25,173	$ 23,843
Passenger Revenue, Regional	6,408	6,581	6,414
Total Passenger Revenue	32,942	31,754	30,257
Cargo Revenue	937	990	1,027
Other Revenue	3,894	3,926	3,831
Total Operating Revenue	37,773	36,670	35,115
Operating Expenses [Abstract]
Aircraft fuel and related taxes	9,397	10,150	9,730
Salaries and related costs	7,720	7,266	6,894
Regional carrier expense	5,669	5,647	5,470
Aircraft maintenance, materials and outside repairs	1,852	1,955	1,765
Contracted services	1,665	1,566	1,642
Depreciation and amortization	1,658	1,565	1,523
Passenger commissions and other selling expenses	1,603	1,590	1,682
Landing fees and other rents	1,410	1,336	1,281
Passenger service	762	732	721
Profit sharing	506	372	264
Aircraft rent	209	272	298
Restructuring and other items	402	452	242
Other operating expense	1,520	1,592	1,628
Total operating expense	34,373	34,495	33,140
Operating Income (Loss)	3,400	2,175	1,975
Other Expense [Abstract]
Interest expense, net	(698)	(812)	(901)
Amortization of debt discount, net	(154)	(193)	(193)
Loss on extinguishment of debt	0	(118)	(68)
Miscellaneous, net	(21)	(27)	(44)
Total other expense, net	(873)	(1,150)	(1,206)
Income Before Income Taxes	2,527	1,025	769
Income Tax Benefit (Provision)	8,013	(16)	85
Net Income	$ 10,540	$ 1,009	$ 854
Basic earnings per share	$ 12.41	$ 1.20	$ 1.02
Diluted earnings per share	$ 12.29	$ 1.19	$ 1.01
Cash dividends declared per common share	$ 0.12	$ 0	$ 0

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Derivatives and Risk Management (Notes)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities Disclosure [Text Block]

DERIVATIVES AND RISK MANAGEMENT

Changes in aircraft fuel prices, interest rates and foreign currency exchange rates impact our results of operations. In an effort to manage our exposure to these risks, we enter into derivative contracts and may adjust our derivative portfolio as market conditions change.

Aircraft Fuel Price Risk

Changes in aircraft fuel prices materially impact our results of operations.We actively manage our fuel price risk through a hedging program intended to reduce the financial impact on us from changes in the price of jet fuel.We utilize several different contract and commodity types in this program andfrequently test its economic effectiveness against our financial targets.We rebalance the hedge portfolio from time to time according to market conditions, which may result in locking in gains or losses on hedge contracts prior to their settlement dates.

During 2011, we stopped designating substantially all of our new fuel derivative contracts as accounting hedges and discontinued hedge accounting for fuel derivative contracts that had previously been designated as accounting hedges.As a result, we record changes in the fair value of our fuel hedges in aircraft fuel and related taxes. These changes in fair value include settled gains and losses as well as mark to market adjustments ("MTM adjustments"). MTM adjustments are based on market prices as of the end of the reporting period for contracts settling in future periods. Prior to this change in accounting designation, gains or losses on these contracts were deferred in AOCI until contract settlement.At contract settlement, the gains or losses were then reclassified to aircraft fuel and related taxes.As of December 31, 2013, there are no fuel derivative contracts designated as accounting hedges.

The following table shows the impact of fuel hedge losses (gains) for both designated and undesignated contracts on aircraft fuel and related taxes:

	Year Ended December 31,
(in millions)	2013			2012			2011
Airline segment	$	(444	)	$	81		$	(187	)
Refinery Segment	(49		)	—			—
Effective portion reclassified from AOCI to earnings	—			(15		)	(233		)
(Gains) losses recorded in aircraft fuel and related taxes	$	(493	)	$	66		$	(420	)

Interest Rate Risk

Our exposure to market risk from adverse changes in interest rates is primarily associated with our long-term debt obligations. Market risk associated with our fixed and variable rate long-term debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates.

In an effort to manage our exposure to the risk associated with our variable rate long-term debt, we periodically enter into interest rate swaps. We designate interest rate contracts used to convert the interest rate exposure on a portion of our debt portfolio from a floating rate to a fixed rate as cash flow hedges, while those contracts converting our interest rate exposure from a fixed rate to a floating rate are designated as fair value hedges.

We also have exposure to market risk from adverse changes in interest rates associated with our cash and cash equivalents and benefit plan obligations. Market risk associated with our cash and cash equivalents relates to the potential decline in interest income from a decrease in interest rates. Pension, postretirement, postemployment, and worker's compensation obligation risk relates to the potential increase in our future obligations and expenses from a decrease in interest rates used to discount these obligations.

Foreign Currency Exchange Rate Risk

We are subject to foreign currency exchange rate risk because we have revenue and expense denominated in foreign currencies with our primary exposures being the Japanese yen and Canadian dollar. To manage exchange rate risk, we execute both our international revenue and expense transactions in the same foreign currency to the extent practicable. From time to time, we may also enter into foreign currency option and forward contracts. These foreign currency exchange contracts are designated as cash flow hedges.

Hedge Position as of December 31, 2013

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	477	U.S. dollars	May 2019	$	—	$	—	$	(17	)	$	(26	)	$	(43	)
Interest rate contracts (fair value hedges)	$	445	U.S. dollars	August 2022	—		—		(2		)	(22		)	(24		)
Foreign currency exchange contracts	120,915		Japanese yen	August 2016	157		100		—			—			257
	438		Canadian dollars
Not designated as hedges
Fuel hedge contracts	4,077		gallons - crude oil, diesel and jet fuel	March 2015	428		29		(127		)	(16		)	314
Total derivative contracts					$	585	$	129	$	(146	)	$	(64	)	$	504

Hedge Position as of December 31, 2012

(in millions)	Notional Balance			Final Maturity Date	Prepaid Expenses and Other Assets		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, net
Designated as hedges
Interest rate contracts (cash flow hedges)	$	740	U.S. dollars	May 2019	$	—	$	—	$	(22	)	$	(48	)	$	(70	)
Interest rate contracts (fair value hedges)	$	469	U.S. dollars	August 2022	—		6		(2		)	—			4
Foreign currency exchange contracts	119,277		Japanese yen	December 2015	62		63		(1		)	(1		)	123
	430		Canadian dollars
Not designated as hedges
Fuel contracts	1,792		gallons - heating oil, crude oil and jet fuel	December 2013	511		—		(262		)	—			249
Total derivative contracts					$	573	$	69	$	(287	)	$	(49	)	$	306

Offsetting Assets and Liabilities

We have master netting arrangements with all of our counterparties giving us the right of setoff. We have elected not to offset the fair value positions recorded on our Consolidated Balance Sheets. The following table shows the potential net fair value positions had we elected to offset.

(in millions)	Prepaid Expenses and Other		Other Noncurrent Assets		Other Accrued Liabilities			Other Noncurrent Liabilities			Hedge Derivatives, Net
December 31, 2013
Net derivative contracts	$	456	$	116	$	(19	)	$	(49	)	$	504
December 31, 2012
Net derivative contracts	$	320	$	69	$	(34	)	$	(49	)	$	306

Designated Hedge Gains (Losses)

Gains (losses) related to our designated hedge contracts, including those previously designated as accounting hedges, are as follows:

	Effective Portion Reclassified from AOCI to Earnings								Effective Portion Recognized in Other Comprehensive Income (Loss)
	Year Ended December 31,
(in millions)	2013		2012			2011			2013		2012			2011
Fuel hedge contracts	$	—	$	15		$	233		$	—	$	(15	)	$	(166	)
Interest rate contracts	—		(5		)	—			28		14			(8		)
Foreign currency exchange contracts	135		(25		)	(61		)	133		212			7
Total designated	$	135	$	(15	)	$	172		$	161	$	211		$	(167	)

As of December 31, 2013, we have recorded $157 million of net gains on cash flow hedge contracts in AOCI, which are scheduled to settle and be reclassified into earnings within the next 12 months.

Credit Risk

To manage credit risk associated with our aircraft fuel price, interest rate and foreign currency hedging programs, we select counterparties based on their credit ratings and limit our exposure to any one counterparty.

Our hedge contracts contain margin funding requirements. The margin funding requirements may cause us to post margin to counterparties or may cause counterparties to post margin to us as market prices in the underlying hedged items change. Due to the fair value position of our hedge contracts, we received net margin of $65 million and $62 million as of December 31, 2013 and 2012, respectively. Margin received is recorded in accounts payable and margin posted is recorded in prepaid expenses and other.

Our accounts receivable are generated largely from the sale of passenger airline tickets and cargo transportation services. The majority of these sales are processed through major credit card companies, resulting in accounts receivable that may be subject to certain holdbacks by the credit card processors. We also have receivables from the sale of mileage credits under our SkyMiles Program to participating airlines and non-airline businesses such as credit card companies, hotels and car rental agencies. The credit risk associated with our receivables is minimal.

Self-Insurance Risk

We self-insure a portion of our losses from claims related to workers' compensation, environmental issues, property damage, medical insurance for employees and general liability. Losses are accrued based on an estimate of the aggregate liability for claims incurred, using independent actuarial reviews based on standard industry practices and our historical experience. A portion of our projected workers' compensation liability is secured with restricted cash collateral.

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Fair Value Measurements (Notes)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

FAIR VALUE MEASUREMENTS

Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability.

• Level 1. Observable inputs such as quoted prices in active markets;

• Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on the valuation techniques identified in the tables below. The valuation techniques are as follows:

(a) Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; and

(b) Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).

Assets (Liabilities) Measured at Fair Value on a Recurring Basis⁽¹⁾ 

(in millions)	December 31, 2013			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,487		$	2,487	$	—		$	—	(a)
Short-term investments	959			959		—			—		(a)
Restricted cash equivalents and investments	118			118		—			—		(a)
Long-term investments	109			80		29			—		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	314			16		298			—		(a)(b)
Interest rate contracts	(67		)	—		(67		)	—		(a)(b)
Foreign currency exchange contracts	257			—		257			—		(a)

(in millions)	December 31, 2012			Level 1		Level 2			Level 3		Valuation Technique
Cash equivalents	$	2,176		$	2,176	$	—		$	—	(a)
Short-term investments	958			958		—			—		(a)
Restricted cash equivalents and investments	344			344		—			—		(a)
Long-term investments	208			100		27			81		(a)(b)
Hedge derivatives, net
Fuel hedge contracts	249			27		222			—		(a)(b)
Interest rate contracts	(66		)	—		(66		)	—		(a)(b)
Foreign currency exchange contracts	123			—		123			—		(a)

⁽¹⁾  See Note 11, “Employee Benefit Plans”, for fair value of benefit plan assets.

Cash Equivalents, Short-term Investments and Restricted Cash Equivalents and Investments. Cash equivalents and short-term investments generally consist of money market funds and treasury bills. Restricted cash equivalents and investments primarily support letters of credit that meet certain projected self-insurance obligations and airport commitments and generally consist of money market funds and time deposits. These investmentsare recorded at cost, which approximates fair value. Fair value is based on a market approach using prices and other relevant information generated by market transactions involving identical or comparable assets.

Long-term Investments. Our long-term investments that are measured at fair value primarily consist of equity investments in Grupo Aeromexico, S.A.B. de C.V., the parent company of Aeromexico, and GOL Linhas Aereas Inteligentes, S.A, the parent company of GOL. Shares of the parent companies of Aeromexico and GOL are traded on public exchanges and we have valued our investments based on quoted market prices. The investments are classified in other noncurrent assets. In 2013, we sold our remaining auction rate securities, which were previously classified as Level 3 instruments.

Hedge Derivatives. Our derivative contracts are generally negotiated with counterparties without going through a public exchange. Accordingly, our fair value assessments give consideration to the risk of counterparty default (as well as our own credit risk).

• Fuel Derivatives. Our fuel hedge portfolio consists of call options; put options; combinations of two or more call options and put options; swap contracts; and futures contracts. The products underlying the hedge contracts include crude oil, diesel fuel and jet fuel as these commodities are highly correlated with the price of jet fuel that we consume. Option contracts are valued under an income approach using option pricing models based on data either readily observable in public markets, derived from public markets or provided by counterparties who regularly trade in public markets. Volatilities used in these valuations ranged from 9% to 25% depending on the maturity dates, underlying commodities and strike prices of the option contracts. Swap contracts are valued under an income approach using a discounted cash flow model based on data either readily observable or derived from public markets. Discount rates used in these valuations vary with the maturity dates of the respective contracts and are based on LIBOR. Futures contracts and options on futures contracts are traded on a public exchange and valued based on quoted market prices.

• Interest Rate Derivatives. Our interest rate derivatives consist primarily of swap contracts and are valued primarily based on data readily observable in public markets.

• Foreign Currency Derivatives. Our foreign currency derivatives consist of Japanese yen and Canadian dollar forward contracts and are valued based on data readily observable in public markets.

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Geographic Information (Notes)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

GEOGRAPHIC INFORMATION

Operating segments, airline and refinery, are defined as components of an enterprise whose separate financial information is regularly reviewed by the chief operating decision maker and used in resource allocation and performance assessments.

Our airline segment is managed as a single business unit that provides air transportation for passengers and cargo. This allows us to benefit from an integrated revenue pricing and route network. Our flight equipment forms one fleet, which is deployed through a single route scheduling system. When making resource allocation decisions, our chief operating decision maker evaluates flight profitability data, which considers aircraft type and route economics, but gives no weight to the financial impact of the resource allocation decision on an individual carrier basis. Our objective in making resource allocation decisions is to optimize our consolidated financial results.

Our refinery segment operates for the benefit of the airline segment. The revenues of the refinery, primarily consisting of fuel sales to the airline, have been eliminated in the Consolidated Financial Statements. For more information regarding our refinery and segment information, see Note 2.

Operating revenue is assigned to a specific geographic region based on the origin, flight path and destination of each flight segment. Our operating revenue by geographic region (as defined by the United States Department of Transportation) is summarized in the following table:

	Year Ended December 31,
(in millions)	2013		2012		2011
Domestic	$	24,857	$	23,989	$	22,722
Atlantic	6,446		6,329		6,486
Pacific	4,086		4,198		3,644
Latin America	2,384		2,154		2,263
Total	$	37,773	$	36,670	$	35,115

Our tangible assets consist primarily of flight equipment, which is mobile across geographic markets. Accordingly, assets are not allocated to specific geographic regions.

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Employee Benefit Plans (Notes)

12 Months Ended

Dec. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

EMPLOYEE BENEFIT PLANS

We sponsor defined benefit and defined contribution pension plans, healthcare plans and disability and survivorship plans for eligible employees and retirees and their eligible family members.

Defined Benefit Pension Plans. We sponsor defined benefit pension plans for eligible employees and retirees. These plans are closed to new entrants and frozen for future benefit accruals.The Pension Protection Act of 2006 allows commercial airlines to elect alternative funding rules (“Alternative Funding Rules”) for defined benefit plans that are frozen. Delta elected the Alternative Funding Rules under which the unfunded liability for a frozen defined benefit plan may be amortized over a fixed 17-year period and is calculated using an8.85%discount rate. We estimate the funding under these plans will total approximately $925 million in 2014, which includes $250 million of contributions above the minimum funding requirements.

Defined Contribution Pension Plans. Delta sponsors several defined contribution plans. These plans generally cover different employee groups and employer contributions vary by plan. The cost associated with our defined contribution pension plans is shown in the tables below.

Postretirement Healthcare Plans. We sponsor healthcare plans that provide benefits to eligible retirees and their dependents who are under age 65. We have generally eliminated company-paid post age 65 healthcare coverage, except for (1) subsidies available to a limited group of retirees and their dependents and (2) a group of retirees who retired prior to 1987. Benefits under these plans are funded from current assets and employee contributions. During 2012, we remeasured our postretirement healthcare obligation to account for changes to retiree medical benefits resulting from the final integration of wages and benefits following our merger with Northwest Airlines and the voluntary workforce reduction programs offered to eligible employees. As a result, we recorded $116 million of special termination benefits in restructuring and other items (see Note 16).

Postemployment Plans. We provide certain other welfare benefits to eligible former or inactive employees after employment but before retirement, primarily as part of the disability and survivorship plans. Substantially all employees are eligible for benefits under these plans in the event of death and/or disability.

Benefit Obligations, Fair Value of Plan Assets and Funded Status

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Benefit obligation at beginning of period	$	21,489		$	19,293		$	3,582		$	3,570
Service cost	—			—			49			56
Interest cost	861			930			143			164
Actuarial (gain) loss	(2,212		)	2,334			(301		)	147
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(313		)	(310		)
Participant contributions	—			—			45			58
Plan amendments	—			—			—			(219		)
Special termination benefits	—			—			—			116
Settlements	—			(11		)	—			—
Benefit obligation at end of period(1)	$	19,060		$	21,489		$	3,205		$	3,582
Fair value of plan assets at beginning of period	$	8,196		$	7,789		$	1,004		$	972
Actual gain on plan assets	905			778			129			134
Employer contributions	914			697			191			222
Participant contributions	—			—			45			58
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(326		)	(382		)
Settlements	—			(11		)	—			—
Fair value of plan assets at end of period	$	8,937		$	8,196		$	1,043		$	1,004
Funded status at end of period	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)

⁽¹⁾  At each period-end presented, our accumulated benefit obligations for our pension plans are equal to the benefit obligations shown above.

Balance Sheet Position

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Current liabilities	$	(22	)	$	(24	)	$	(139	)	$	(132	)
Noncurrent liabilities	(10,101		)	(13,269		)	(2,023		)	(2,446		)
Total liabilities	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)
Net actuarial loss	$	(5,349	)	$	(7,958	)	$	(103	)	$	(473	)
Prior service credit	—			—			161			187
Total accumulated other comprehensive income (loss), pre-tax	$	(5,349	)	$	(7,958	)	$	58		$	(286	)

During 2013, the net actuarial loss recorded in AOCI related to our benefit plans decreased to $5.3 billion from $8.2 billion. This decrease is primarily due to the increase in discount rates from 2012 to 2013.

Estimated amounts that will be amortized from AOCI into net periodic benefit cost in 2014 are a net actuarial loss of $111 million. Amounts are generally amortized from AOCI over the expected future lifetime of plan participants.

Net Periodic Cost

	Pension Benefits									Other Postretirement and Postemployment Benefits
	Year Ended December 31,									Year Ended December 31,
(in millions)	2013			2012			2011			2013			2012			2011
Service cost	$	—		$	—		$	—		$	49		$	56		$	52
Interest cost	861			930			969			143			164			180
Expected return on plan assets	(734		)	(705		)	(724		)	(84		)	(77		)	(90		)
Amortization of prior service credit	—			—			—			(26		)	(21		)	(3		)
Recognized net actuarial loss (gain)	221			143			55			25			23			(11		)
Settlements	6			—			—			—			—			—
Special termination benefits	—			—			—			—			116			—
Net periodic cost	$	354		$	368		$	300		$	107		$	261		$	128
Defined contribution plan costs	490			426			377			—			—			—
Total cost	$	844		$	794		$	677		$	107		$	261		$	128

Assumptions

We used the following actuarial assumptions to determine our benefit obligations and our net periodic cost for the periods presented:

	December 31,
Benefit Obligations(1)(2)	2013		2012
Weighted average discount rate	5.01	%	4.11	%

	Year Ended December 31,
Net Periodic Cost(2)	2013		2012		2011
Weighted average discount rate - pension benefit	4.10	%	4.95	%	5.70	%
Weighted average discount rate - other postretirement benefit(4)	4.00	%	4.63	%	5.55	%
Weighted average discount rate - other postemployment benefit	4.13	%	4.88	%	5.63	%
Weighted average expected long-term rate of return on plan assets	8.94	%	8.94	%	8.93	%
Assumed healthcare cost trend rate(3)	7.00	%	7.00	%	7.00	%

⁽¹⁾  Our 2013 and 2012 benefit obligations are measured using a mortality table projected to 2017 and 2016, respectively.

⁽²⁾  Future compensation levels do not impact our frozen defined benefit pension plans or other postretirement plans and impact only a small portion of our other postemployment liability.

⁽³⁾  Assumed healthcare cost trend rate at December 31, 2013 is assumed to decline gradually to 5.00% by 2022 and remain level thereafter.

⁽⁴⁾  Our assumptions reflect various remeasurements of certain portions of our obligations and represent the weighted average of the assumptions used for each measurement date.

Healthcare Cost Trend Rate. Assumed healthcare cost trend rates have an effect on the amounts reported for the other postretirement benefit plans. A 1% change in the healthcare cost trend rate used in measuring the accumulated plan benefit obligation for these plans at December 31, 2013, would have the following effects:

(in millions)	1% Increase		1% Decrease
Increase (decrease) in total service and interest cost	$	1	$	(1	)
Increase (decrease) in the accumulated plan benefit obligation	15		(25		)

Expected Long-Term Rate of Return. Our expected long-term rate of return on plan assets is based primarily on plan-specific investment studies using historical market return and volatility data.Modest excess return expectations versus some public market indices are incorporated into the return projections based on the actively managed structure of the investment programs and their records of achieving such returns historically. We also expect to receive a premium for investing in less liquid private markets.We review our rate of return on plan asset assumptions annually.Our annual investment performance for one particular year does not, by itself, significantly influence our evaluation.Our actual historical annualized three and five year rate of return on plan assets for our defined benefit pension plans was approximately 9% and 12%, respectively, as of December 31, 2013. The investment strategy for our defined benefit pension plan assets is to use a diversified mix of global public and private equity portfolios, public and private fixed income portfolios and private real estate and natural resource investments to earn a long-term investment return that meets or exceeds our annualized return target.Our expected long-term rate of return on assets for net periodic pension benefit cost for the year endedDecember 31, 2013 was 9%.

Benefit Payments

Benefit payments in the table below are based on the same assumptions used to measure the related benefit obligations. Actual benefit payments may vary significantly from these estimates. Benefits earned under our pension plans and certain postemployment benefit plans are expected to be paid from funded benefit plan trusts, while our other postretirement benefits are funded from current assets.

The following table summarizes, the benefit payments that are scheduled to be paid in the years ending December 31:

(in millions)	Pension Benefits		Other Postretirement and Postemployment Benefits
2014	$	1,128	$	272
2015	1,136		272
2016	1,154		273
2017	1,175		270
2018	1,194		264
2019-2023	6,226		1,311

Plan Assets

We have adopted and implemented investment policies for our defined benefit pension plans and disability and survivorship plan for pilots that incorporate strategic asset allocation mixes intended to best meet the plans' long-term obligations. This asset allocation policy mix utilizes a diversified mix of investments and is reviewed periodically. The weighted average target and actual asset allocations for the plans are as follows:

	December 31, 2013
	Target		Actual
Diversified fixed income	23	%	12	%
Domestic equity securities	21		14
Non-U.S. developed equity securities	20		23
Alternative investments	19		21
Non-U.S. emerging equity securities	6		6
Hedge funds	5		6
Cash equivalents	5		14
High yield fixed income	1		4
Total	100	%	100	%

The overall asset mix of the portfolios is more heavily weighted in equity-like investments. Active management strategies are utilized where feasible in an effort to realize investment returns in excess of market indices. As part of these strategies, we are required to hold increased amounts of cash collateral associated with certain derivative investments. We use derivatives instead of holding the underlying securities to mitigate certain risks and facilitate asset allocation.

Benefit Plan Assets Measured at Fair Value on a Recurring Basis

Fair value is defined as an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or liability.

• Level 1. Observable inputs such as quoted prices in active markets;

• Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

• Level 3. Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on the valuation techniques identified in the tables below. The valuation techniques are as follows:

(a) Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; and

(b) Income approach. Techniques to convert future amounts to a single current value based on market expectations (including present value techniques, option-pricing and excess earnings models).

Benefit Plan Assets. Benefit plan assets relate to our defined benefit pension plans and certain of our postemployment benefit plans that are funded through trusts. The following table shows our benefit plan assets by asset class. These investments are presented net of the related benefit obligation in pension, postretirement and related benefits on the Consolidated Balance Sheets.

	December 31, 2013									December 31, 2012
(in millions)	Total		Level 1		Level 2		Level 3		Valuation Technique	Total		Level 1		Level 2		Level 3		Valuation Technique
Common stock
U.S.	$	558	$	558	$	—	$	—	(a)	$	575	$	575	$	—	$	—	(a)
Non-U.S.	1,269		1,216		53		—		(a)	923		886		37		—		(a)
Mutual funds
U.S.	3		—		3		—		(a)	69		—		69		—		(a)
Non-U.S.	43		—		43		—		(a)	129		—		129		—		(a)
Non-U.S. emerging markets	327		—		327		—		(a)	466		—		466		—		(a)
Diversified fixed income	218		—		218		—		(a)	390		—		390		—		(a)
High yield	348		—		348		—		(a)(b)	153		—		153		—		(a)(b)
Commingled funds
U.S.	864		—		864		—		(a)	824		—		824		—		(a)
Non-U.S.	782		—		782		—		(a)	688		—		688		—		(a)
Non-U.S. emerging markets	319		—		319		—		(a)	178		—		178		—		(a)
Diversified fixed income	680		—		680		—		(a)	763		—		763		—		(a)
High yield	98		—		39		59		(a)	38		—		25		13		(a)
Alternative investments
Private equity	1,366		—		—		1,366		(a)(b)	1,466		—		—		1,466		(a)(b)
Real estate and natural resources	688		—		—		688		(a)(b)	613		—		—		613		(a)(b)
Hedge Funds	552		—		—		552		(a)(b)	484		—		—		484		(a)(b)
Fixed income	155		—		155		—		(a)(b)	573		—		573		—		(a)(b)
Cash equivalents and other	1,610		28		1,582		—		(a)	818		77		741		—		(a)
Total benefit plan assets	$	9,880	$	1,802	$	5,413	$	2,665		$	9,150	$	1,538	$	5,036	$	2,576

Common Stock. Common stock is valued at the closing price reported on the active market on which the individual securities are traded.

Mutual and Commingled Funds. These funds are valued using the net asset value divided by the number of shares outstanding, which is based on quoted market prices of the underlying assets owned by the fund.

Alternative Investments. The valuation of alternative investments requires significant judgment due to the absence of quoted market prices as well as the inherent lack of liquidity and the long-term nature of these assets. Accordingly, these assets are generally classified in Level 3. Alternative investments include private equity, real estate, energy and timberland. Investments are valued based on valuation models where one or more of the significant inputs into the model cannot be observed and which require the development of assumptions. We also assess the potential for adjustment to the fair value of these investments due to the lag in the availability of data. In these cases, we solicit preliminary valuation updates at year-end from the investment managers and use that information and corroborating data from public markets to determine any needed adjustments to estimate fair value.

Fixed Income. Investments include corporate bonds, government bonds, collateralized mortgage obligations and other asset backed securities. These investments are generally valued at the bid price or the average of the bid and ask price. Prices are based on pricing models, quoted prices of securities with similar characteristics, or broker quotes.

Hedge Funds. Our hedge fund investments are primarily made through shares of limited partnerships or similar structures for which a liquid secondary market does not exist. Hedge funds are considered Level 3 assets. Hedge funds are valued monthly by a third-party administrator that has been appointed by the fund's general partner.

Foreign Currency Derivatives. Our foreign currency derivatives consist of various forward contracts and are valued based on data readily observable in public markets.

Cash Equivalents and Other. These investments primarily consist of short term investment funds which are valued using the net asset value. Cash is not included in the table above.

Changes in Level 3. The following table shows the changes in our benefit plan assets classified in Level 3:

(in millions)	Private Equity			Real Estate			Hedge Funds			Commingled Funds		Total
Balance at January 1, 2012	$	1,517		$	527		$	432		$	11	$	2,487
Actual return on plan assets:
Related to assets still held at the reporting date	—			(11		)	50			2		41
Related to assets sold during the period	44			8			(9		)	—		43
Purchases, sales and settlements, net	(95		)	89			(2		)	—		(8		)
Transfers from Level 3	—			—			13			—		13
Balance at December 31, 2012	1,466			613			484			13		2,576
Actual return on plan assets:
Related to assets still held at the reporting date	98			61			49			2		210
Related to assets sold during the period	64			19			—			—		83
Purchases, sales and settlements, net	(262		)	(5		)	19			44		(204		)
Transfers to Level 3	—			—			—			—		—
Balance at December 31, 2013	$	1,366		$	688		$	552		$	59	$	2,665

Other

We also sponsor defined benefit pension plans for eligible employees in certain foreign countries. These plans did not have a material impact on our Consolidated Financial Statements in any period presented.

Profit Sharing Program

Our broad based employee profit sharing program provides that, for each year in which we have an annual pre-tax profit, as defined, we will pay a specified portion of that profit to employees. For the years ended December 31, 2013, 2012 and 2011, we accrued $506 million, $372 million and $264 million under the profit sharing program, respectively.

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Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Dec. 31, 2013 Rate	Dec. 31, 2012	Dec. 31, 2010	Dec. 31, 2013 Total funding under pension plans [Member]	Dec. 31, 2013 Contribution above minimum funding requirement [Member]	Dec. 31, 2013 United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]	Dec. 31, 2012 United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]	Dec. 31, 2011 United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Other Information	8.85%
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year				$ 925	$ 250
Assumed Health care plan pre age	65
Assumed Health care plan post age	65
Defined Benefit Plan, Other Costs						0	116	0
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	5,300	8,200				103	473
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year	111
Defined Benefit Plan, Description of Direction and Pattern of Change for Assumed Health Care Cost Trend Rate	0.05
Annualized three year rate of return on plan assets	9.00%
Annualized five year rate of return on plan assets	12.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	9.00%
Deferred Compensation Cash-based Arrangements, Liability, Current	$ 506	$ 372	$ 264

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American Express Relationship (Notes)

12 Months Ended

Dec. 31, 2013

American Express Relationship [Abstract]

American Express Relationship [Text Block]

AMERICAN EXPRESS RELATIONSHIP

General. Our agreements with American Express provide for joint marketing, grant certain benefits to Delta-American Express co-branded credit card holders ("Cardholders") and American Express Membership Rewards Program participants and allow American Express to market using our customer database. Cardholders earn mileage credits for making purchases using co-branded cards, may check their first bag for free, are granted access to Delta SkyClub lounges and receive other benefits while traveling on Delta. These benefits that we provide in the form of separate products and services under the SkyMiles agreements are referred to as "deliverables." Additionally, participants in the American Express Membership Rewards program may exchange their points for mileage credits under the SkyMiles Program. As a result, we sell mileage credits at agreed upon rates to American Express for provision to their customers under the co-brand credit card program and the Membership Rewards program.

During 2013, we amended our agreements with American Express that modified the products and services provided under the agreements. The amendments changed certain mileage award redemptions, access to SkyClubs, among other things. For a description of how these amendments changed our accounting, please see Note 1 under Frequent Flyer Program.

Advance Purchase of Restricted SkyMiles. In 2008, we entered into a multi-year extension of our American Express agreements and received $1.0 billion from American Express for an advance purchase of Restricted SkyMiles (the "prepayment"). The 2008 agreement provided that our obligations with respect to the advance purchase would be satisfied as American Express uses the purchased miles over a specified future period (“SkyMiles Usage Period”), rather than by cash payments from us to American Express. Due to the SkyMiles Usage Period and other restrictions placed upon American Express regarding the timing and use of the SkyMiles, we classified the $1.0 billion prepayment we received as long-term debt.

In 2010, we amended our 2008 American Express agreement. The amendments, among other things, (1) provided that Cardholders could check their first bag for free on every Delta flight through June 2013 ("Baggage Fee Waiver Period"), (2) changed the SkyMiles Usage Period to a three-year period beginning in the December 2011 quarter from a two-year period beginning in December 2010 quarter and (3) gave American Express the option to extend our agreements with them for one year.

During the SkyMiles Usage Period, American Express was drawing down on the prepayment instead of paying cash to Delta for SkyMiles used. As SkyMiles are used by American Express, we recognized the two separate revenue components of these SkyMiles consistent with our accounting policy discussed in Note 1. In December 2013, we and American Express amended this agreement to allow American Express to use these SkyMiles immediately and without restriction. As a result, in the December 2013 quarter, the remaining $285 million of the original $1.0 billion pre-payment was classified as frequent flyer deferred revenue with a portion related to the marketing component recorded within other accrued liabilities.

Annual Sale of Unrestricted SkyMiles. In December 2011, we amended our American Express agreements to sell to American Express $675 million of unrestricted SkyMiles in each of the four years ending 2014. The December 2011 amendment also extends the Baggage Fee Waiver Period. The SkyMiles purchased pursuant to the December 2011 amendment may be used immediately by American Express. The usage of these SkyMiles is not restricted in any way. These annual purchases of SkyMiles are recorded as deferred revenue within current liabilities. The portion of each purchase of SkyMiles related to mileage credits redeemable for future travel are classified within frequent flyer deferred revenue and the portion related to the marketing component are classified within other accrued liabilities. The December 2011 amendment does not change the number of miles that we expect American Express to purchase from us over the four year period; it only impacts the timing of those purchases.

Fuel Card Obligation. In December 2011, we obtained a purchasing card with American Express for the purpose of buying jet fuel and crude oil. The card currently carries a maximum credit limit of $612 million and must be paid monthly. At December 31, 2013 and December 31, 2012, we had $602 million and $455 million, respectively, outstanding on this purchasing card, which was classified as fuel card obligation.

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American Express Relationship (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Frequent flyer deferred revenue	$ 1,861,000,000	$ 1,806,000,000
Deferred Revenue, Additions	675,000,000	675,000,000	675,000,000
Fuel card obligation	602,000,000	455,000,000
Deferred Revenue, Future Additions in Next Twelve Months	675,000,000
American Express Advance Purchase of SkyMiles [Member]
Debt Instrument, Face Amount	1,000,000,000
Frequent flyer deferred revenue	285,000,000
Fuel Card Obligation [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 612,000,000

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JFK Redevelopment (Notes)

12 Months Ended

Dec. 31, 2013

JFK Redevelopment [Abstract]

JFKRedevelopment [Text Block]

JFK REDEVELOPMENT

We are optimizing our international and trans-continental flight schedule and undertaking a redevelopment project at John F. Kennedy International Airport (“JFK”) to facilitate convenient connections for our passengers and improve coordination with our SkyTeam alliance partners. Prior to beginning the redevelopment project, we primarily operated domestic flights out of Terminal 2 and international flights out of Terminal 3 under leases with the Port Authority of New York and New Jersey (“Port Authority”), which operates JFK. Our redevelopment project, which began in 2010, is on schedule. Terminal 4 is operated by JFK International Air Terminal LLC (“IAT”), a private party, under its lease with the Port Authority. We have constructed nine new international gates in Terminal 4, which opened in 2013. We have relocated our operations from Terminal 3 to our newly constructed facilities at Terminal 4 and have begun the demolition of Terminal 3. During 2013, we announced plans for an additional $180 million expansion project that will add 11 more gates at Terminal 4. With the expansion project, we will relocate our regional jet operations from Terminal 2 to Terminal 4.

In December 2010, the Port Authority issued approximately $800 million principal amount of special project bonds to fund the substantial majority of the project. Also in December 2010, we entered into a 33 year agreement with IAT (“Sublease”) to sublease space in Terminal 4. IAT is unconditionally obligated under its lease with the Port Authority to pay rentals from the revenues it receives from its operation and management of Terminal 4, including among others our rental payments under the Sublease, in an amount sufficient to pay principal and interest on the bonds. We do not guarantee payment of the bonds. The balance of the project costs will be provided by Port Authority passenger facility charges, Transportation Security Administration funding and our contributions. Our future rental payments will vary based on our share of total passenger and baggage counts at Terminal 4, the number of gates we occupy in Terminal 4, IAT's actual expenses of operating Terminal 4 and other factors.

We are responsible for the management and construction of the project and bear construction risk, including cost overruns. We record an asset for project costs as construction takes place, regardless of funding source. These costs include design fees, labor and construction permits, as well as physical construction costs such as paving, systems, utilities and other costs generally associated with construction projects. The project will also include capitalized interest based on amounts we spend calculated based on our weighted average incremental borrowing rate. The related construction obligation is recorded as a liability and is equal to project costs funded by parties other than us. Future rental payments will reduce the construction obligation and result in the recording of interest expense, calculated using the effective interest method. During the construction period, we are also incurring costs for construction site ground rental expense and remediation and abatement activities, which are expensed as incurred. As of December 31, 2013, we have recorded $675 million as a fixed asset as if we owned the asset and $646 million as the related construction obligation.

We have an equity-method investment in the entity which owns IAT, our sublessor at Terminal 4. The Sublease requires us to pay certain fixed management fees. We determined the investment is a variable interest and assessed whether we have a controlling financial interest in IAT. Our rights under the Sublease with respect to management of Terminal 4 are consistent with rights granted to an anchor tenant under a standard airport lease. Accordingly, we do not consolidate the entity in which we have an investment in our Consolidated Financial Statements.

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Intangible Assets (Notes)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Disclosure [Text Block]

INTANGIBLE ASSETS

Indefinite-Lived Intangible Assets

	Carrying Amount at December 31,
(in millions)	2013		2012
International routes and slots	$	2,287	$	2,240
Delta tradename	850		850
SkyTeam related assets	661		661
Domestic slots	622		622
Total	$	4,420	$	4,373

International Routes and Slots. Our remaining international routes and slots primarily relate to the Pacific region. The U.S. and Japan have a bilateral agreement that allows U.S. air carriers unlimited flying to and from Japan under route authorities granted by the U.S. Department of Transportation. Access to the primary Japanese airports (Haneda and Narita airports in Tokyo) is regulated through allocations of slots, which limit the rights of carriers to operate at these airports. The U.S. and Japan have agreed on plans for a limited number of additional slots at these airports. The substantial number of slots we hold at Tokyo Narita Airport, combined with limited-entry rights we hold in other countries, enables us to operate a hub at Tokyo serving the Asia-Pacific region. We currently believe that the current U.S.-Japan bilateral agreement will not have a significant long-term impact on our Pacific routes and slots; therefore, these assets continue to have an indefinite life and are not presently impaired.

Negative changes to our operations could result in an impairment charge or a change from indefinite-lived to definite-lived in the period in which the changes occur or are projected to occur.

Domestic Slots. In December 2011, we and US Airways exchanged takeoff and landing rights at LaGuardia Airport ("LaGuardia") and Reagan National airports. Under the agreement, (1) we acquired 132 slot pairs at LaGuardia from US Airways and (2) US Airways acquired from us 42 slot pairs at Reagan National and $67 million in cash. Additionally, we divested 16 slot pairs at LaGuardia and eight slot pairs at Reagan National to airlines with limited or no service at those airports and received $90 million in cash proceeds from the sale of the divested slot pairs. The divestiture of these slot pairs resulted in the recognition of a $43 million gain during the December 2011 quarter in restructuring and other items on our Consolidated Statement of Operations. This gain was offset by a $50 million impairment charge recorded on our Moscow slots, for a net $7 million loss recorded during 2011.

The 132 slot pairs at LaGuardia acquired in 2011 were recorded at fair value. We estimated their fair value using a combination of limited market transactions and the lease savings method, which is an income approach. These assets are classified in Level 3 of the fair value hierarchy. The carrying value related to the 42 slot pairs at Reagan National acquired by US Airways was removed from our indefinite-lived intangible assets. In approving the transaction, the Department of Transportation restricted our use of the exchanged slots. We recorded a $78 million deferred gain in December 2011. We recognized this deferred gain in 2012 as the restrictions lapsed.

Definite-Lived Intangible Assets

	December 31, 2013					December 31, 2012
(in millions)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Marketing agreements	$	730	$	(602	)	$	730	$	(545	)
Contracts	193		(83		)	193		(72		)
Other	53		(53		)	53		(53		)
Total	$	976	$	(738	)	$	976	$	(670	)

Amortization expense for each of the years ended December 31, 2013, 2012 and 2011 was approximately $70 million. The following table summarizes the estimated aggregate amortization expense for each of the five succeeding fiscal years:

Years Ending December 31, (in millions)
2014	$	67
2015	67
2016	9
2017	9
2018	8

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Long Term Debt (Notes)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

LONG-TERM DEBT

The following table summarizes our long-term debt:

	Maturity			Interest Rate(s) Per Annum at			December 31,
(in millions)	Dates			December 31, 2013			2013			2012
Pacific Facilities:
Pacific Term Loan B-1(2)	October 2018			4.00%	variable(1)		$	1,089		$	1,100
Pacific Term Loan B-2(2)	April 2016			3.25%	variable(1)		396			400
Pacific Revolving Facility ($450)	October 2017			undrawn	variable(1)		—			—
2011 Credit Facilities:
Term Loan Facility(2)	April 2017			3.50%	variable(1)		1,341			1,354
Revolving Credit Facility ($1,225)	April 2016			undrawn	variable(1)		—			—
Other Secured Financing Arrangements:
Certificates(2)(3)	2014	to	2023	4.75%	to	9.75%	3,834			4,314
Aircraft financings(2)(3)	2014	to	2025	0.64%	to	6.76%	3,787			3,964
Other financings(2)(4)	2014	to	2031	0.00%	to	6.12%	627			707
Other Revolving Credit Facilities ($250)	2014	to	2015	undrawn	variable(1)		—			—
Total secured debt							11,074			11,839
American Express - Advance Purchase of Restricted SkyMiles(5)							—			619
Other unsecured debt(2)	2014	to	2035	3.01%	to	9.00%	154			175
Total unsecured debt							154			794
Total secured and unsecured debt							11,228			12,633
Unamortized discount, net							(383		)	(527		)
Total debt							10,845			12,106
Less: current maturities							(1,449		)	(1,507		)
Total long-term debt							$	9,396		$	10,599

⁽¹⁾  Interest rate equal to LIBOR (generally subject to a floor) or another index rate, in each case plus a specified margin.

⁽²⁾  Due in installments.

⁽³⁾  Secured by aircraft.

⁽⁴⁾  Primarily includes loans secured by spare parts, spare engines and real estate.

⁽⁵⁾  For additional information about our debt associated with American Express, see Note 7.

Pacific Facilities

In October 2012, we entered into senior secured credit facilities (the "Pacific Facilities") to borrow up to $2.0 billion. The Pacific Facilities consist of two first lien term loan facilities (the "Pacific Term Loans") and a $450 million revolving credit facility (the "Pacific Revolving Facility"). Borrowings under the Pacific Term Loans must be repaid annually in an amount equal to 1% per year of the original principal amount of the respective loans (to be paid in equal quarterly installments). The remaining unamortized principal amounts under the Pacific Term Loans are due on their final maturity dates.

Our obligations under the Pacific Facilities are guaranteed by substantially all of our domestic subsidiaries (the "Guarantors") and secured by a first lien on our Pacific route authorities and certain related assets. For a discussion of related financial covenants, see "Key Financial Covenants" below.

2011 Credit Facilities

In 2011, we entered into senior secured first-lien credit facilities (the “2011 Credit Facilities”) to borrow up to $2.6 billion. The 2011 Credit Facilities consist of a $1.4 billion first-lien term loan facility (the “Term Loan Facility”) and a $1.2 billion first-lien revolving credit facility, up to $500 million of which may be used for the issuance of letters of credit (the “Revolving Credit Facility”).

Borrowings under the Term Loan Facility must be repaid annually in an amount equal to 1% of the original principal amount (to be paid in equal quarterly installments), with the balance due in 2017. Borrowings under the Revolving Credit Facility are due in 2016.

Our obligations under the 2011 Credit Facilities are guaranteed by the Guarantors. The 2011 Credit Facilities and the related guarantees are secured by liens on certain of our and the Guarantors' assets, including accounts receivable, flight equipment, ground property and equipment, certain aircraft, spare engines and parts, certain non-Pacific international routes, domestic slots, real estate and certain investments (the “Collateral”). For a discussion of related financial covenants, see "Key Financial Covenants" below.

Key Financial Covenants

The credit facilities discussed above include affirmative, negative and financial covenants that restrict our ability to, among other things, make investments, sell or otherwise dispose of collateral if we are not in compliance with the collateral coverage ratio tests described below, pay dividends or repurchase stock. We were in compliance with all covenants in our financing agreements at December 31, 2013.

	Pacific Facilities	2011 Credit Facilities
Minimum Fixed Charge Coverage Ratio (1)	1.20:1	1.20:1
Minimum Unrestricted Liquidity
Unrestricted cash and permitted investments	n/a	$1.0 billion
Unrestricted cash, permitted investments and undrawn revolving credit facilities	$2.0 billion	$2.0 billion
Minimum Collateral Coverage Ratio (2)	1.60:1	1.67:1 (3)

⁽¹⁾  Defined as the ratio of (a) earnings before interest, taxes, depreciation, amortization and aircraft rent and other adjustments to net income to (b) the sum of gross cash interest expense (including the interest portion of our capitalized lease obligations) and cash aircraft rent expense, for the 12-month period ending as of the last day of each fiscal quarter.

⁽²⁾  Defined as the ratio of (a) certain of the collateral that meets specified eligibility standards to (b) the sum of the aggregate outstanding obligations and certain other obligations.

⁽³⁾  Excluding the non-Pacific international routes from the collateral for purposes of the calculation, the required minimum collateral coverage ratio is 0.75:1

Availability Under Revolving Credit Facilities

The table below shows availability under revolving credit facilities, all of which were undrawn, as of December 31, 2013:

(in millions)
Revolving Credit Facility	$	1,225
Pacific Revolving Credit Facility	450
Other Revolving Credit Facilities	250
Total availability under revolving credit facilities	$	1,925

Future Maturities

The following table summarizes scheduled maturities of our debt, including current maturities, at December 31, 2013:

Years Ending December 31, (in millions)	Total Secured and Unsecured Debt		Amortization of Debt Discount, net
2014	$	1,491	$	(80	)
2015	1,089		(73		)
2016	1,472		(67		)
2017	2,190		(58		)
2018	2,159		(47		)
Thereafter	2,827		(58		)
Total	$	11,228	$	(383	)	$	10,845

Fair Value of Debt

Market risk associated with our fixed and variable rate long-term debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates. In the table below, the aggregate fair value of debt was based primarily on reported market values, recently completed market transactions and estimates based on interest rates, maturities, credit risk and underlying collateral and is classified primarily as Level 2 within the fair value hierarchy.

	December 31,
(in millions)	2013			2012
Total debt at par value	$	11,228		$	12,633
Unamortized discount, net	(383		)	(527		)
Net carrying amount	$	10,845		$	12,106
Fair value	$	11,600		$	13,000

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Long Term Debt (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 1,491
Debt Instrument, Amortization Discount (Premium), Net Year One	(80)
Long-term Debt, Maturities, Repayments of Principal in Year Two	1,089
Debt Instrument, Amortization Discount (Premium), Net Year Two	(73)
Long-term Debt, Maturities, Repayments of Principal in Year Three	1,472
Debt Instrument, Amortization Discount (Premium), Net Year Three	(67)
Long-term Debt, Maturities, Repayments of Principal in Year Four	2,190
Debt Instrument, Amortization Discount (Premium), Net Year Four	(58)
Long-term Debt, Maturities, Repayments of Principal in Year Five	2,159
Debt Instrument, Amortization Discount (Premium), Net Year Five	(47)
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,827
Debt Instrument, Amortization Discount (Premium), Net After Year Five	(58)
Long-term Debt, Gross	11,228	12,633
Debt Instrument, Unamortized Discount (Premium), Net	(383)	(527)
Long-term Debt	$ 10,845	$ 12,106

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Federal Current Tax Benefit (Provision)	$ 24	$ 0	$ 91
State and Local Current Tax Benefit (Provision)	(3)	15	(6)
International Current Tax Benefit (Provision)	1	(14)	(2)
Federal Deferred Tax Provision	7,197	(4)	2
State and Local Deferred Tax Provision	794	(13)	0
Income Tax Benefit (Provision)	$ 8,013	$ (16)	$ 85

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Long Term Debt (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance	We were in compliance with all covenants in our financing agreements at December 31, 2013
Senior Secured Pacific Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,000,000,000
Pacific Routes Revolving Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	450,000,000
Pacific Routes Term Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Percentage Of Principal	0.01
Debt Instrument, Frequency of Periodic Payment	quarterly
Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,600,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Percentage Of Principal	0.01
Debt Instrument, Frequency of Periodic Payment	quarterly
Debt Instrument, Face Amount	1,400,000,000
Debt Instrument, Maturity Date	Apr. 30, 2017
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,200,000,000
Debt Instrument, Maturity Date	Apr. 30, 2016
Revolving Credit Facility Letters of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 500,000,000

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Quarterly Financial Data (Unaudited) (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability	$ 7,921	$ 157	$ (159)	$ (78)	$ (231)	$ 279	$ (754)	$ 163
Facilities, fleet and other [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability	(160)	(128)	(34)	(102)	(122)	(122)	(22)	(27)
MTM adjustments [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability	92	285	(125)	24	(3)	440	(561)	151
Release of tax valuation allowance [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability	7,989	0	0	0
Severance and related costs [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability					0	(66)	(171)	0
Routes and slots [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability					0	39	0	39
Loss on extingushment of debt [Member]
Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability					$ (106)	$ (12)	$ 0	$ 0

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Long Term Debt (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 1,925
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	1,225
Pacific Routes Revolving Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	450
Bank Revolving Credit Facilities [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 250

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Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2009
Text Block [Abstract]
Non Cash Income Tax Expense Recorded In Other Comprehensive Income	$ 321

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Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Indefinite-Lived Intangible Assets [Table Text Block]

	Carrying Amount at December 31,
(in millions)	2013		2012
International routes and slots	$	2,287	$	2,240
Delta tradename	850		850
SkyTeam related assets	661		661
Domestic slots	622		622
Total	$	4,420	$	4,373

Definite-Lived Intangible Assets [Table Text Block]

	December 31, 2013					December 31, 2012
(in millions)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Marketing agreements	$	730	$	(602	)	$	730	$	(545	)
Contracts	193		(83		)	193		(72		)
Other	53		(53		)	53		(53		)
Total	$	976	$	(738	)	$	976	$	(670	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table summarizes the estimated aggregate amortization expense for each of the five succeeding fiscal years:

Years Ending December 31, (in millions)
2014	$	67
2015	67
2016	9
2017	9
2018	8

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Derivatives and Risk Management (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion Reclassified from AOCI to Earnings	$ (135)	$ 15	$ (172)
Gains (Losses) recorded in aircraft fuel and related taxes	(114)	(209)	135
Fuel Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion Reclassified from AOCI to Earnings	0	(15)	(233)
Gains (Losses) recorded in aircraft fuel and related taxes	(493)	66	(420)
Airline [Member] | Fuel Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) recorded in aircraft fuel and related taxes	(444)	81	(187)
Refinery [Member] | Fuel Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) recorded in aircraft fuel and related taxes	$ (49)	$ 0	$ 0

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Equity and Equity Compensation (Notes)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity and Equity Compensation [Text Block]

EQUITY AND EQUITY COMPENSATION

Equity

We are authorized to issue 2.0 billion shares of capital stock, of which up to 1.5 billion may be shares of common stock, par value $0.0001 per share and up to 500 million may be shares of preferred stock.

Preferred Stock. We may issue preferred stock in one or more series. The Board of Directors is authorized (1) to fix the descriptions, powers (including voting powers), preferences, rights, qualifications, limitations and restrictions with respect to any series of preferred stock and (2) to specify the number of shares of any series of preferred stock. We have not issued any preferred stock.

Treasury Stock. We generally withhold shares of Delta common stock to cover employees' portion of required tax withholdings when employee equity awards are issued or vest. These shares are valued at cost, which equals the market price of the common stock on the date of issuance or vesting. The weighted average cost of shares held in treasury was $14.31 and $14.24 as of December 31, 2013 and 2012, respectively.

Equity-Based Compensation

Our broad based equity and cash compensation plan provides for grants of restricted stock, stock options, performance awards, including cash incentive awards and other equity-based awards (the "2007 Plan"). Shares of common stock issued under the 2007 Plan may be made available from authorized but unissued common stock or common stock we acquire. If any shares of our common stock are covered by an award that is canceled, forfeited or otherwise terminates without delivery of shares (including shares surrendered or withheld for payment of the exercise price of an award or taxes related to an award), such shares will again be available for issuance under the 2007 Plan. The 2007 Plan authorizes the issuance of up to 157 million shares of common stock. As of December 31, 2013, there were 28 million shares available for future grants.

We make long term incentive awards annually to eligible employees under the 2007 Plan. Generally, awards vest over time, subject to the employee's continued employment. Equity compensation expense for these awards is recognized in salaries and related costs over the employee's requisite service period (generally, the vesting period of the award) and totaled $90 million, $54 million and $72 million for the years ended December 31, 2013, 2012 and 2011, respectively. We record expense on a straight-line basis for awards with installment vesting. As of December 31, 2013, unrecognized costs related to unvested shares and stock options totaled $45 million. We expect substantially all unvested awards to vest.

Restricted Stock. Restricted stock is common stock that may not be sold or otherwise transferred for a period of time and is subject to forfeiture in certain circumstances. The fair value of restricted stock awards is based on the closing price of the common stock on the grant date. As of December 31, 2013, there were seven million unvested restricted stock awards.

Stock Options. Stock options are granted with an exercise price equal to the closing price of Delta common stock on the grant date and generally have a 10-year term. We determine the fair value of stock options at the grant date using an option pricing model. As of December 31, 2013, there were eight million outstanding stock option awards with a weighted average exercise price of $11.80, and seven million were exercisable.

Performance Shares. Performance shares are long-term incentive opportunities which are payable in common stock or cash and are generally contingent upon our achieving certain financial goals.

Other. There was no tax benefit recognized in 2013, 2012 or 2011 related to equity-based compensation as a full valuation allowance was recorded against our deferred tax assets due to the uncertainty regarding the ultimate realization of those assets. At December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets. For more information regarding our income taxes, see Note 12.

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Other Investments (Notes)

12 Months Ended

Dec. 31, 2013

Investments, All Other Investments [Abstract]

Investments and Other Noncurrent Assets [Text Block]

OTHER INVESTMENTS

Endeavor Acquisition

In May 2013, Endeavor (formerly Pinnacle Airlines, Inc.) emerged from bankruptcy and we became its sole owner pursuant to a confirmed plan of reorganization. Consideration for our acquisition of Endeavor totaled $30 million, primarily consisting of previous loans and advances we made to Endeavor. The primary assets acquired and liabilities assumed related to 16 CRJ-900 aircraft with a fair value of $270 million and related debt of $240 million on the date of acquisition. These aircraft and 169 other aircraft leased by Endeavor were already in service to Delta; accordingly, our capacity was unaffected by the acquisition.

Transatlantic Joint Venture With Virgin Atlantic

In June 2013, we purchased 49% of Virgin Atlantic, a privately held London-based airline, from Singapore Airlines for $360 million. In addition, we entered into a collaborative arrangement with Virgin Atlantic on non-stop routes between the United Kingdom and North America. In September 2013, the U.S. Department of Transportation granted antitrust immunity on these routes. Effective January 1, 2014, we began our immunized collaborative arrangement, which allows for joint marketing and sales, coordinated pricing and revenue management, networking planning and scheduling with respect to operations on routes between North America and the United Kingdom. As a result of this relationship, our customers have increased access and frequencies to London's Heathrow airport from points in the U.S., primarily from our hub at New York's JFK airport.

We account for the investment under the equity method of accounting and recognize our portion of Virgin Atlantic's results in other expense in our Consolidated Statements of Operations. As part of equity method of accounting, we allocated the investment in Virgin Atlantic to (1) our portion of their equity, (2) adjustments in the fair market value of assets and liabilities and (3) implied goodwill. Our share of Virgin Atlantic's equity was approximately $60 million; accordingly, the majority of the allocation was to the fair value of indefinite-lived intangible assets and implied goodwill.

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Restructuring and Other Items (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	$ 402	$ 452	$ 242
Facilities, fleet and other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	402	293	135
Severance and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	0	237	100
Routes and slots [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other items	$ 0	$ (78)	$ 7

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Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 2,487	$ 2,176
Other Assets, Fair Value Disclosure	118	344
Fuel Contracts, Derivatives, Net	314	249
Interest Rate Derivatives, at Fair Value, Net	(67)	(66)
Foreign Currency Exchange Contracts, Hedge Derivatives, Net	257	123
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	2,487	2,176
Other Assets, Fair Value Disclosure	118	344
Fuel Contracts, Derivatives, Net	16	27
Interest Rate Derivatives, at Fair Value, Net	0	0
Foreign Currency Exchange Contracts, Hedge Derivatives, Net	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Other Assets, Fair Value Disclosure	0	0
Fuel Contracts, Derivatives, Net	298	222
Interest Rate Derivatives, at Fair Value, Net	(67)	(66)
Foreign Currency Exchange Contracts, Hedge Derivatives, Net	257	123
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Other Assets, Fair Value Disclosure	0	0
Fuel Contracts, Derivatives, Net	0	0
Interest Rate Derivatives, at Fair Value, Net	0	0
Foreign Currency Exchange Contracts, Hedge Derivatives, Net	0	0
Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	959	958
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	959	958
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	0	0
Other Long-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	109	208
Other Long-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	80	100
Other Long-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	29	27
Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	$ 0	$ 81
Cash and Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Short-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Other Long-term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Fuel Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.

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Geographic Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Operating Revenue by Geographic Region [Table Text Block]

	Year Ended December 31,
(in millions)	2013		2012		2011
Domestic	$	24,857	$	23,989	$	22,722
Atlantic	6,446		6,329		6,486
Pacific	4,086		4,198		3,644
Latin America	2,384		2,154		2,263
Total	$	37,773	$	36,670	$	35,115

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Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net Income	$ 10,540	$ 1,009	$ 854
Other Comprehensive Income (Loss), Net gain (loss) on derivatives	482	211	(167)
Other Comprehensive (Income) Loss, Net change in pension and other benefit liabilities	2,965	(2,022)	(3,021)
Total Other Comprehensive Income (Loss)	3,447	(1,811)	(3,188)
Comprehensive Income (Loss)	$ 13,987	$ (802)	$ (2,334)

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Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Valuation Allowance [Line Items]
Income Tax Benefit (Provision)	$ (8,013)		$ 16		$ (85)
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Valuation Allowances at Beginning of Period	10,963	[1]	10,705	[1]	9,632
Income Tax Provision	(975)		(432)		(351)
Other Comprehensive Income Tax Benefit	(1,186)		690		1,241
Other	(315)		0		183
Valuation Allowances at End of Period	177	[1]	10,963	[1]	10,705	[1]
Valuation allowance release [Member] [Member]
Valuation Allowance [Line Items]
Income Tax Benefit (Provision)	$ (8,310)		$ 0		$ 0

[1] (1) In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.(2) At December 31, 2013, 2012 and 2011, $13 million, $3.1 billion and $2.5 billion of deferred income tax expense was recorded in AOCI on our Consolidated Balance Sheets, respectively.

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Oil Refinery (Notes)

12 Months Ended

Dec. 31, 2013

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

OIL REFINERY

Fuel expense is our single largest expense.Prior to our acquisition of an oil refinery, global demand for jet fuel and related products had increased while jet fuel refining capacity had decreased in the U.S. (particularly in the Northeast), resulting in increases in the refining margin reflected in the prices we paid for jet fuel. In June 2012, we purchased an oil refinery as part of our strategy to mitigate the increasing cost of the refining margin we pay. Our wholly-owned subsidiaries, Monroe Energy, LLC and MIPC, LLC (collectively, “Monroe”), acquired the Trainer refinery and related assets located near Philadelphia, Pennsylvania from Phillips 66, which had shut down operations at the refinery. Monroe invested $180 million to acquire the refinery. Monroe received a $30 million grant from the Commonwealth of Pennsylvania. The acquisition includes pipelines and terminal assets that allow the refinery to supply jet fuel to our airline operations throughout the Northeastern U.S., including our New York hubs at LaGuardia and JFK.

We accounted for the refinery acquisition as a business combination. The refinery, pipelines and terminal assets acquired were recorded at $180 million in property and equipment, net based on their respective fair values on the closing date of the transaction.

Refinery Operations and Strategic Agreements

BP is the primary supplier of crude oil used by the refinery under a three year agreement. The refinery's production consists of jet fuel, as well as gasoline, diesel and other refined products ("non-jet fuel products"). Under a multi-year agreement, we are exchanging a significant portion of the non-jet fuel products with Phillips 66 for jet fuel to be used in our airline operations. In addition, we are selling most of the remaining production of non-jet fuel products to BP under a buy/sell agreement, effectively exchanging those non-jet fuel products for jet fuel. Substantially all of the refinery's production of non-jet fuel products is included in these agreements. The gross fair value of the products exchanged under these agreements during years ended December 31, 2013 and 2012 was $5.4 billion and $1.1 billion, respectively.

Segment Reporting

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources to our segments and in assessing performance. Our chief operating decision maker is considered to be our executive leadership team. Our executive leadership team regularly reviews discrete information for our two operating segments, which are determined by the products and services provided: our airline segment and our refinery segment.

Our airline segment provides scheduled air transportation for passengers and cargo throughout the United States and around the world and other ancillary airline services, including maintenance and repair services for third parties. Our refinery segment provides jet fuel to the airline segment from its own production and through jet fuel obtained through the agreements with Phillips 66 and BP. The costs included in the refinery segment are primarily for the benefit of the airline segment. As a result, our segments are not designed to measure operating income or loss directly related to the products and services included in each segment on a stand-alone basis.

Segment results are prepared based on our internal accounting methods described below, with reconciliations to consolidated amounts in accordance with GAAP.

(in millions)	Airline		Refinery			Intersegment Sales/Other				Consolidated
Year Ended December 31, 2013
Operating revenue:	$	37,773	$	7,003						$	37,773
Sales to airline segment						$	(1,156	)	(1)
Exchanged products						(5,352		)	(2)
Sales of refined products to third parties						(495		)	(3)
Operating income (loss)	3,516		(116		)					3,400
Interest expense, net	698		—							698
Depreciation and amortization expense	1,641		17							1,658
Total assets, end of period	51,080		1,172							52,252
Capital expenditures	2,516		52							2,568
Year Ended December 31, 2012
Operating revenue:	$	36,670	$	1,347						$	36,670
Sales to airline segment						$	(213	)	(1)
Exchanged products						(1,121		)	(2)
Sales of refined products to third parties						(13		)	(3)
Operating income (loss)	2,238		(63		)					2,175
Interest expense, net	812		—							812
Depreciation and amortization expense	1,561		4							1,565
Total assets, end of period	43,386		1,164							44,550
Capital expenditures	1,637		331							1,968

⁽¹⁾ Represents transfers, valued on a market price basis, from the refinery to the airline segment for use in airline operations. We determine market price by reference to the market index for the primary delivery location for jet fuel from the refinery, which is New York Harbor.

⁽²⁾ Represents value of products exchanged under our buy/sell agreements, as discussed above, determined on a market price basis.

⁽³⁾ Represents sales of refined products to third parties. These sales were at or near cost; accordingly, the margin on these sales is de minimis.

XML

Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2014 amortization expense	$ 67
2015 amortization expense	67
2016 amortization expense	9
2017 amortization expense	9
2018 amortization expense	$ 8

XML

Employee Benefit Plans (Details 7) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 9,880	$ 9,150
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,802	1,538
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	5,413	5,036
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	2,665	2,576
Equity Securities [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	558	575
Equity Securities [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	1,269	923
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	558	575
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,216	886
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
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Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	53	37
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	3	69
Mutual Funds [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	43	129
Mutual Funds [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	327	466
Mutual Funds [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	218	390
Mutual Funds [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	348	153
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
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Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
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Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
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Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3	69
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	43	129
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	327	466
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	218	390
Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	348	153
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Mutual Funds [Member] | Fair Value, Inputs, Level 3 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	864	824
Commingled Funds [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	782	688
Commingled Funds [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	319	178
Commingled Funds [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	680	763
Commingled Funds [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	98	38
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 1 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	864	824
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	782	688
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	319	178
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	680	763
Commingled Funds [Member] | Fair Value, Inputs, Level 2 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	39	25
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Non-U.S. Emerging Markets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Commingled Funds [Member] | Fair Value, Inputs, Level 3 [Member] | High Yield [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	59	13
Private Equity Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	1,366	1,466
Private Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Private Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,366	1,466
Real Estate [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	688	613
Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	688	613
Hedge Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	552	484
Hedge Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Hedge Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	552	484
Fixed Income Funds [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities; Income approach. Techniques to convert future amounts to a single present amount based on market expectations (including present value techniques, option-pricing and excess earnings models).
Defined Benefit Plan, Fair Value of Plan Assets	155	573
Fixed Income Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
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Fixed Income Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	155	573
Fixed Income Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Foreign Exchange Contract [Member] | Assets [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Foreign Exchange Contract [Member] | Liabilities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Cash and Cash Equivalents [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value Measurements, Valuation Techniques	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.	Market approach. Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.
Defined Benefit Plan, Fair Value of Plan Assets	1,610	818
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	28	77
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1,582	741
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
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XML

Lease Obligations (Narrative) (Details) (USD $) In Billions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]
Operating Leases, Rent Expense	$ 1.1	$ 1.1	$ 1.1

XML

Dividend and Share Repurchase (Notes)

12 Months Ended

Dec. 31, 2013

Dividend and Share Repurchase [Abstract]

Dividend and Share Repurchase [Text Block]

DIVIDEND AND SHARE REPURCHASE

In May 2013, we announced a plan to return more than $1 billion to shareholders over the next three years. As part of this plan, our Board of Directors initiated a quarterly dividend program and declared a $0.06 per share dividend for shareholders of record as of August 9, 2013 and November 6, 2013. These dividends were paid in September 2013 and November 2013 and each totaled $51 million. In addition, the Board of Directors authorized a $500 million share repurchase program, to be completed no later than June 30, 2016. During the year ended December 31, 2013, we repurchased and retired approximately 10 million shares at a cost of approximately $250 million. On February 7, 2014, the Board of Directors declared a $0.06 dividend for shareholders of record on February 21, 2014, and payable on March 14, 2014.

XML

Commitments and Contingencies (Narrative 1) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Percentage Of Employees Represented By Unions Under Collective Bargaining Agreements	18.00%
Required Cash Reserve for Credit Card Agreements	$ 0	$ 0
Required Amount of Withholding of Payments for Credit Card Agreements	0	0
Cash Reserve for Credit Card Processing Agreements	0	0
Amount Withheld for Credit Card Processing Agreements	$ 0	$ 0
All Employees [Member]
Entity Number of Employees	78,000
Refinery Employees [Member]
Entity Number of Employees	210

XML

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Benefit Obligations, Fair Value of Plan Assets and Funded Status

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Benefit obligation at beginning of period	$	21,489		$	19,293		$	3,582		$	3,570
Service cost	—			—			49			56
Interest cost	861			930			143			164
Actuarial (gain) loss	(2,212		)	2,334			(301		)	147
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(313		)	(310		)
Participant contributions	—			—			45			58
Plan amendments	—			—			—			(219		)
Special termination benefits	—			—			—			116
Settlements	—			(11		)	—			—
Benefit obligation at end of period(1)	$	19,060		$	21,489		$	3,205		$	3,582
Fair value of plan assets at beginning of period	$	8,196		$	7,789		$	1,004		$	972
Actual gain on plan assets	905			778			129			134
Employer contributions	914			697			191			222
Participant contributions	—			—			45			58
Benefits paid, including lump sums and annuities	(1,078		)	(1,057		)	(326		)	(382		)
Settlements	—			(11		)	—			—
Fair value of plan assets at end of period	$	8,937		$	8,196		$	1,043		$	1,004
Funded status at end of period	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)

⁽¹⁾  At each period-end presented, our accumulated benefit obligations for our pension plans are equal to the benefit obligations shown above.

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

Balance Sheet Position

	Pension Benefits						Other Postretirement and Postemployment Benefits
	December 31,						December 31,
(in millions)	2013			2012			2013			2012
Current liabilities	$	(22	)	$	(24	)	$	(139	)	$	(132	)
Noncurrent liabilities	(10,101		)	(13,269		)	(2,023		)	(2,446		)
Total liabilities	$	(10,123	)	$	(13,293	)	$	(2,162	)	$	(2,578	)
Net actuarial loss	$	(5,349	)	$	(7,958	)	$	(103	)	$	(473	)
Prior service credit	—			—			161			187
Total accumulated other comprehensive income (loss), pre-tax	$	(5,349	)	$	(7,958	)	$	58		$	(286	)

Schedule of Net Benefit Costs [Table Text Block]

Net Periodic Cost

	Pension Benefits									Other Postretirement and Postemployment Benefits
	Year Ended December 31,									Year Ended December 31,
(in millions)	2013			2012			2011			2013			2012			2011
Service cost	$	—		$	—		$	—		$	49		$	56		$	52
Interest cost	861			930			969			143			164			180
Expected return on plan assets	(734		)	(705		)	(724		)	(84		)	(77		)	(90		)
Amortization of prior service credit	—			—			—			(26		)	(21		)	(3		)
Recognized net actuarial loss (gain)	221			143			55			25			23			(11		)
Settlements	6			—			—			—			—			—
Special termination benefits	—			—			—			—			116			—
Net periodic cost	$	354		$	368		$	300		$	107		$	261		$	128
Defined contribution plan costs	490			426			377			—			—			—
Total cost	$	844		$	794		$	677		$	107		$	261		$	128

Schedule of Assumptions Used [Table Text Block]

We used the following actuarial assumptions to determine our benefit obligations and our net periodic cost for the periods presented:

	December 31,
Benefit Obligations(1)(2)	2013		2012
Weighted average discount rate	5.01	%	4.11	%

	Year Ended December 31,
Net Periodic Cost(2)	2013		2012		2011
Weighted average discount rate - pension benefit	4.10	%	4.95	%	5.70	%
Weighted average discount rate - other postretirement benefit(4)	4.00	%	4.63	%	5.55	%
Weighted average discount rate - other postemployment benefit	4.13	%	4.88	%	5.63	%
Weighted average expected long-term rate of return on plan assets	8.94	%	8.94	%	8.93	%
Assumed healthcare cost trend rate(3)	7.00	%	7.00	%	7.00	%

⁽¹⁾  Our 2013 and 2012 benefit obligations are measured using a mortality table projected to 2017 and 2016, respectively.

⁽²⁾  Future compensation levels do not impact our frozen defined benefit pension plans or other postretirement plans and impact only a small portion of our other postemployment liability.

⁽³⁾  Assumed healthcare cost trend rate at December 31, 2013 is assumed to decline gradually to 5.00% by 2022 and remain level thereafter.

⁽⁴⁾  Our assumptions reflect various remeasurements of certain portions of our obligations and represent the weighted average of the assumptions used for each measurement date.

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

A 1% change in the healthcare cost trend rate used in measuring the accumulated plan benefit obligation for these plans at December 31, 2013, would have the following effects:

(in millions)	1% Increase		1% Decrease
Increase (decrease) in total service and interest cost	$	1	$	(1	)
Increase (decrease) in the accumulated plan benefit obligation	15		(25		)

Schedule of Expected Benefit Payments [Table Text Block]

The following table summarizes, the benefit payments that are scheduled to be paid in the years ending December 31:

(in millions)	Pension Benefits		Other Postretirement and Postemployment Benefits
2014	$	1,128	$	272
2015	1,136		272
2016	1,154		273
2017	1,175		270
2018	1,194		264
2019-2023	6,226		1,311

Schedule of Allocation of Plan Assets [Table Text Block]

The weighted average target and actual asset allocations for the plans are as follows:

	December 31, 2013
	Target		Actual
Diversified fixed income	23	%	12	%
Domestic equity securities	21		14
Non-U.S. developed equity securities	20		23
Alternative investments	19		21
Non-U.S. emerging equity securities	6		6
Hedge funds	5		6
Cash equivalents	5		14
High yield fixed income	1		4
Total	100	%	100	%

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	December 31, 2013									December 31, 2012
(in millions)	Total		Level 1		Level 2		Level 3		Valuation Technique	Total		Level 1		Level 2		Level 3		Valuation Technique
Common stock
U.S.	$	558	$	558	$	—	$	—	(a)	$	575	$	575	$	—	$	—	(a)
Non-U.S.	1,269		1,216		53		—		(a)	923		886		37		—		(a)
Mutual funds
U.S.	3		—		3		—		(a)	69		—		69		—		(a)
Non-U.S.	43		—		43		—		(a)	129		—		129		—		(a)
Non-U.S. emerging markets	327		—		327		—		(a)	466		—		466		—		(a)
Diversified fixed income	218		—		218		—		(a)	390		—		390		—		(a)
High yield	348		—		348		—		(a)(b)	153		—		153		—		(a)(b)
Commingled funds
U.S.	864		—		864		—		(a)	824		—		824		—		(a)
Non-U.S.	782		—		782		—		(a)	688		—		688		—		(a)
Non-U.S. emerging markets	319		—		319		—		(a)	178		—		178		—		(a)
Diversified fixed income	680		—		680		—		(a)	763		—		763		—		(a)
High yield	98		—		39		59		(a)	38		—		25		13		(a)
Alternative investments
Private equity	1,366		—		—		1,366		(a)(b)	1,466		—		—		1,466		(a)(b)
Real estate and natural resources	688		—		—		688		(a)(b)	613		—		—		613		(a)(b)
Hedge Funds	552		—		—		552		(a)(b)	484		—		—		484		(a)(b)
Fixed income	155		—		155		—		(a)(b)	573		—		573		—		(a)(b)
Cash equivalents and other	1,610		28		1,582		—		(a)	818		77		741		—		(a)
Total benefit plan assets	$	9,880	$	1,802	$	5,413	$	2,665		$	9,150	$	1,538	$	5,036	$	2,576

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following table shows the changes in our benefit plan assets classified in Level 3:

(in millions)	Private Equity			Real Estate			Hedge Funds			Commingled Funds		Total
Balance at January 1, 2012	$	1,517		$	527		$	432		$	11	$	2,487
Actual return on plan assets:
Related to assets still held at the reporting date	—			(11		)	50			2		41
Related to assets sold during the period	44			8			(9		)	—		43
Purchases, sales and settlements, net	(95		)	89			(2		)	—		(8		)
Transfers from Level 3	—			—			13			—		13
Balance at December 31, 2012	1,466			613			484			13		2,576
Actual return on plan assets:
Related to assets still held at the reporting date	98			61			49			2		210
Related to assets sold during the period	64			19			—			—		83
Purchases, sales and settlements, net	(262		)	(5		)	19			44		(204		)
Transfers to Level 3	—			—			—			—		—
Balance at December 31, 2013	$	1,366		$	688		$	552		$	59	$	2,665

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Income Taxes (Notes)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

Income Tax Benefit (Provision)

Our income tax benefit (provision) consisted of the following:

	Year Ended December 31,
(in millions)	2013			2012			2011
Current tax benefit (provision):
Federal	$	24		$	—		$	91
State and local	(3		)	15			(6		)
International	1			(14		)	(2		)
Deferred tax provision:
Federal	7,197			(4		)	2
State and local	794			(13		)	—
Income tax benefit (provision)	$	8,013		$	(16	)	$	85

The following table presents the principal reasons for the difference between the effective tax rate and the U.S. federal statutory income tax rate:

	Year Ended December 31,
	2013		2012		2011
U.S. federal statutory income tax rate	35.0	%	35.0	%	35.0	%
State taxes	3.0		3.3		3.4
Other	(0.4	)	4.0		(3.7	)
	37.6		42.3		34.7
Decrease in valuation allowance	(367.5	)	(40.8	)	(45.7	)
Income tax allocation	12.7		—		—
Effective income tax rate	(317.2	)%	1.5	%	(11.0	)%

Deferred Taxes

Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting and income tax purposes. The following table shows significant components of our deferred tax assets and liabilities:

	December 31,
(in millions)	2013			2012
Deferred tax assets:
Net operating loss carryforwards	$	6,024		$	6,414
Pension, postretirement and other benefits	4,982			6,415
AMT credit carryforward	378			402
Deferred revenue	1,965			2,133
Other	698			881
Valuation allowance	(177		)	(10,963		)
Total deferred tax assets	$	13,870		$	5,282
Deferred tax liabilities:
Depreciation	$	4,799		$	4,851
Intangible assets	1,704			1,730
Other	639			285
Total deferred tax liabilities	$	7,142		$	6,866

The following table shows the current and noncurrent deferred tax assets (liabilities):

	December 31,
(in millions)	2013		2012
Current deferred tax assets, net	$	1,736	$	463
Noncurrent deferred tax assets (liabilities), net	4,992		(2,047		)
Total deferred tax assets (liabilities), net	$	6,728	$	(1,584	)

The current and noncurrent components of our deferred tax balances are generally based on the balance sheet classification of the asset or liability creating the temporary difference. If the deferred tax asset or liability is not based on a component of our balance sheet, such as our net operating loss (“NOL”) carryforwards, the classification is presented based on the expected reversal date of the temporary difference. Our valuation allowance has been allocated between current or noncurrent based on the percentages of current and noncurrent deferred tax assets to total deferred tax assets.

At December 31, 2013, we had (1) $378 million of federal alternative minimum tax (“AMT”) credit carryforwards, which do not expire and (2) $15.3 billion of federal pretax NOL carryforwards, which will not begin to expire until 2023.

Valuation Allowance

We periodically assess whether it is more likely than not that we will generate sufficient taxable income to realize our deferred income tax assets. We establish valuation allowances if it is not likely we will realize our deferred income tax assets. In making this determination, we consider all available positive and negative evidence and make certain assumptions. We consider, among other things, our future projections of sustained profitability, deferred income tax liabilities, the overall business environment, our historical financial results, our industry's historically cyclical financial results and potential current and future tax planning strategies. We recorded a full valuation allowance in 2004 due to our cumulative loss position at that time, compounded by the negative industry-wide business trends and outlook. At December 31, 2012, we had an $11.0 billion valuation allowance established against our deferred income tax assets, which represented a full valuation allowance against our net deferred income tax assets.

For 2012, we recorded a pre-tax profit of $1.0 billion and during 2012 we moved from a three-year cumulative loss position to a cumulative income position for the first time since we established the full valuation allowance. However given the industry's recent history of significant losses, we concluded as of December 31, 2012 that another year of significant profitability was needed to support a release of valuation allowance.

During 2013, we continued our trend of sustained profitability, recording a pre-tax profit of $2.5 billion for the year. During the December 2013 quarter, after considering all relevant factors, we concluded that our deferred income tax assets are more likely than not to be realized. In evaluating the likelihood of utilizing our net deferred net assets, the significant relevant factors that we considered are: (1) our recent history of profitability; (2) growth in the U.S. and global economies; (3) forecast of airline revenue trends; (4) estimate of future fuel prices; and (5) future impact of taxable temporary differences. Accordingly, at December 31, 2013, we released almost all of our valuation allowance against our net deferred income tax assets, resulting in an $8.3 billion benefit in our provision for income taxes. We have retained a valuation allowance of $107 million against capital loss carryforwards, as well as $70 million against certain state and local operating loss and credit carryforwards, due to limited carryforward periods. In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.

The following table shows the balance of our valuation allowance and the associated activity:

(in millions)	2013			2012			2011
Valuation allowance at beginning of period	$	10,963		$	10,705		$	9,632
Income tax provision	(975		)	(432		)	(351		)
Other comprehensive income tax benefit	(1,186		)	690			1,241
Release(1)	(8,310		)	—			—
Other	(315		)	—			183
Valuation allowance at end of period(2)	$	177		$	10,963		$	10,705

⁽¹⁾  In addition to tax valuation allowance release of $8.3 billion, we recorded an income tax expense of $321 million related to an income tax allocation as discussed below, resulting in a net income tax benefit of $8.0 billion in 2013.

⁽²⁾  At December 31, 2013, 2012 and 2011, $13 million, $3.1 billion and $2.5 billion of deferred income tax expense was recorded in AOCI on our Consolidated Balance Sheets, respectively.

Income Tax Allocation

We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to continuing operations (the "Income Tax Allocation"). At the end of 2013, we released our tax valuation allowance, as discussed above. GAAP requires that the release of a valuation allowance be recognized in current earnings, even when a portion of the related deferred tax asset originated through amounts recognized in AOCI. As a result, $1.9 billion of income tax expense remains in AOCI, primarily related to pension obligations, and will not be recognized in net income until the pension obligations are fully extinguished, which will not occur for approximately 25 years.

During 2009, as a result of the Income Tax Allocation, we recorded a non-cash deferred income tax expense of $321 million on other comprehensive income as a result of hedge gains on fuel derivatives and an offsetting non-cash income tax benefit of $321 million. This deferred income tax expense remained in AOCI until all amounts in AOCI that related to fuel derivatives which were designated as accounting hedges were recognized in the Consolidated Statement of Operations. All of the remaining amounts held in AOCI for fuel derivatives previously designated as hedges were reclassified to earnings during 2013. As a result, an income tax expense of $321 million was recognized in 2013 upon the settlement of the fuel derivative contracts designated as accounting hedges.

Uncertain Tax Positions

The amount of and changes to our uncertain tax positions were not material in any of the years presented. The amount of unrecognized tax benefits at the end of 2013, 2012 and 2011 was $37 million, $44 million and $22 million, respectively. We accrue interest and penalties related to unrecognized tax benefits in interest expense and operating expense, respectively. Interest and penalties are not material in any period presented.

We are currently under audit by the IRS for the 2013 and 2012 tax years.

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Quarterly Financial Data (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Selected Quarterly Financial Information [Abstract]
Total Operating Revenue	$ 9,076	$ 10,490	$ 9,707	$ 8,500	$ 8,602	$ 9,923	$ 9,732	$ 8,413	$ 37,773	$ 36,670	$ 35,115
Operating Income (Loss)	701	1,563	914	222	352	1,308	134	382	3,400	2,175	1,975
Net Income	$ 8,479	$ 1,369	$ 685	$ 7	$ 7	$ 1,047	$ (168)	$ 124	$ 10,540	$ 1,009	$ 854
Basic earnings per share	$ 10.02	$ 1.61	$ 0.81	$ 0.01	$ 0.01	$ 1.24	$ (0.20)	$ 0.15	$ 12.41	$ 1.20	$ 1.02
Diluted earnings per share	$ 9.89	$ 1.59	$ 0.80	$ 0.01	$ 0.01	$ 1.23	$ (0.20)	$ 0.15	$ 12.29	$ 1.19	$ 1.01