Commitments and Contingencies	9 Months Ended
Sep. 30, 2012
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENCIES Aircraft Commitments Future aircraft purchase commitments at September 30, 2012 total approximately $6.8 billion and include 100 B-737-900ER aircraft, 18 B-787-8 aircraft and seven previously owned MD-90 aircraft. We have obtained long-term financing commitments for a substantial portion of the purchase price of these aircraft. In July 2012, we finalized agreements with Southwest Airlines and The Boeing Company to lease 88 B-717-200 aircraft with deliveries beginning in 2013 and continuing through 2015. Including the B-717-200 aircraft, we estimate that our total lease payments will be approximately $1.6 billion in 2013, $1.6 billion in 2014, $1.5 billion in 2015, $1.4 billion in 2016 and $8.8 billion after 2016. 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 Condensed Consolidated Financial Statements. 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 September 30, 2012, we had approximately 77,000 full-time equivalent employees. Approximately 14% of these employees were represented by unions. During the June 2012 quarter, we reached an agreement with the Air Line Pilots Association, International (“ALPA”) to modify the existing collective bargaining agreement, which covers approximately 10,700 Delta pilots. The agreement, which was ratified by the pilots in June 2012 and took effect on July 1, 2012, becomes amendable on December 31, 2015. 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 and for aviation insurance in general. 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, 2013, 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, if available. 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, may result in a material increase to our operating expense or may not be obtainable at all, resulting in an interruption to our operations. Other We have certain contracts for goods and services that require us to pay a penalty, acquire inventory specific to us or purchase equipment specific to a contract, if we terminate this type of contract without cause prior to its expiration date. Because these obligations are contingent on our termination of a contract without cause prior to its expiration date, no obligation would exist unless such a termination occurs.

COMMITMENTS AND CONTINGENCIES

Aircraft Commitments

Future aircraft purchase commitments at September 30, 2012 total approximately $6.8 billion and include 100 B-737-900ER aircraft, 18 B-787-8 aircraft and seven previously owned MD-90 aircraft. We have obtained long-term financing commitments for a substantial portion of the purchase price of these aircraft.

In July 2012, we finalized agreements with Southwest Airlines and The Boeing Company to lease 88 B-717-200 aircraft with deliveries beginning in 2013 and continuing through 2015. Including the B-717-200 aircraft, we estimate that our total lease payments will be approximately $1.6 billion in 2013, $1.6 billion in 2014, $1.5 billion in 2015, $1.4 billion in 2016 and $8.8 billion after 2016.

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 Condensed Consolidated Financial Statements.

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 September 30, 2012, we had approximately 77,000 full-time equivalent employees. Approximately 14% of these employees were represented by unions.

During the June 2012 quarter, we reached an agreement with the Air Line Pilots Association, International (“ALPA”) to modify the existing collective bargaining agreement, which covers approximately 10,700 Delta pilots. The agreement, which was ratified by the pilots in June 2012 and took effect on July 1, 2012, becomes amendable on December 31, 2015.

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 and for aviation insurance in general. 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, 2013, 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, if available. 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, may result in a material increase to our operating expense or may not be obtainable at all, resulting in an interruption to our operations.

Other

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