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RELATED PARTY TRANSACTIONS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Continental Airlines Inc
   
Related Party Transaction [Line Items]    
Payment to related parties $ 268  
Net current payables to related parties 2,210 11
Non-current payables to related parties 729  
United Airlines Inc
   
Related Party Transaction [Line Items]    
Payment to related parties 230  
Net current payables to related parties $ 104 $ 104