Chapter 11 Reorganization (Schedule Of Reorganization Items) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011
Reorganization [Line Items]
Aircraft financing renegotiations and rejections	$ 98	[1],[2]		$ 1,114	[1],[3]
Rejection of facility bond related obligations	60	[2]		399	[3]
Professional fees	72			117
Total reorganization items, net	$ 230		$ 0	$ 1,630		$ 0

[1] The Debtors record an estimated claim associated with the rejection of an executory contract or unexpired lease when a motion is filed with the Bankruptcy Court to reject such contract or lease and the Debtors believe that it is probable the motion will be approved and there is sufficient information to estimate the claim. The Debtors record an estimated claim associated with the renegotiation of an executory contract or unexpired lease when the renegotiated terms of such contract or lease are not opposed or are otherwise approved by the Bankruptcy Court and there is sufficient information to estimate the claim.

[2] (2)Estimated allowed claims from (i) filing motions to modify the leases and revise the economic terms of the financing of certain aircraft and (ii) rejecting facility agreements supporting special facility revenue bonds at Luis Muñoz Marín International Airport in San Juan, Puerto Rico. The modification of leases and financing relating to such aircraft has been approved by the Bankruptcy Court. See above, “Special Protection Applicable to Leases and Secured Financing of Aircraft and Aircraft Equipment,” for further information.

[3] (3)Estimated allowed claims for the six months ended June 30, 2012 from (i) rejecting 16 leases of seven Boeing 757-200 aircraft, one McDonnell Douglas MD-80 aircraft, and eight spare engines, (ii) relinquishing one Airbus A300-600R aircraft that was subject to a mortgage, (iii) filing motions to reject facility agreements supporting special facility revenue bonds at Dallas/Fort Worth International Airport, Fort Worth Alliance Airport and Luis Muñoz Marín International Airport in San Juan, Puerto Rico, and (iv) filing motions to modify the leases of 168 aircraft, including 39 Super ATR aircraft, nine Boeing 737-800 aircraft, 33 Boeing 757-200 aircraft, 11 Boeing 767-200ER aircraft, 13 Boeing 767-300ER aircraft, and 63 McDonnell Douglas MD-80 aircraft. The rejections of the leases of such aircraft and spare engines and the modification of the leases relating to such aircraft have been approved by the Bankruptcy Court. See above, “Special Protection Applicable to Leases and Secured Financing of Aircraft and Aircraft Equipment,” for further information.