Chapter 11 Reorganization (Schedule Of Reorganization Items) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011	Sep. 30, 2012		Sep. 30, 2011
Reorganization [Line Items]
Reorganization Items Pension and Postretirement Benefits	$ (66)			$ (66)
Aircraft financing renegotiations and rejections	133	[1],[2]		1,247	[1]
Rejection of facility bond related obligations	0	[2]		399
Professional fees	51			168
Reorganization Items, Other	19			19
Total reorganization items, net	$ 137		$ 0	$ 1,767		$ 0

[1] (1)Amounts include allowed claims (claims approved by the Bankruptcy Court) and estimated allowed claims relating to the rejection or modification of financings related to aircraft. The Debtors record an estimated claim associated with the rejection or modification of a financing when the motion is filed with the Bankruptcy Court to reject or modify such financing and the Debtors believe that it is probable the motion will be approved by all parties, and there is sufficient information to estimate the claim. See above, “Special Protection Applicable to Leases and Secured Financing of Aircraft and Aircraft Equipment,” for further information.

[2] (2)Amounts include allowed claims (claims approved by the Bankruptcy Court) and estimated allowed claims relating to entry of orders treating as unsecured claims with respect to facility agreements supporting certain issuances of special facility revenue bonds. The Debtors record an estimated claim associated with the treatment of claims with respect to facility agreements when the applicable motion is filed with the Bankruptcy Court and the Debtors believe that it is probable that the motion will be approved, and there is sufficient information to estimate the claim. See above, “Rejection of Executory Contracts,” for further information.