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Chapter 11 Reorganization (Schedule Of Liabilities Subject To Compromise) (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Reorganizations [Abstract]    
Long-Term Debt Subject to Compromise $ 1,427  
Aircraft lease and facility bond related obligations 3,036  
Pension and postretirement benefits 7,803  
Accounts payable and other accrued liabilities 348  
Other (15)  
Total liabilities subject to compromise $ 12,599 $ 3,952