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Other Liabilities
6 Months Ended
Jun. 30, 2011
Other Liabilities [Abstract]  
OTHER LIABILITIES
13.   OTHER LIABILITIES
 
An analysis of other liabilities is as follows:
 
                 
    June 30,
    December 31,
 
    2011     2010  
    (millions)  
 
Other current liabilities
               
Other taxes payable
  $ 46     $ 41  
Accounts payable
    72       39  
Accrued dividends payable
    46       46  
Accrued interest payable
    37       21  
Derivatives
    7       6  
Other payables
    110       113  
                 
Total other current liabilities
  $ 318     $ 266  
                 
                 
Other non-current liabilities
               
Incentives from lessors
  $ 156     $ 150  
Deferred compensation plan liability
    122       120  
Capital lease obligation
    25       23  
Derivatives
    7       6  
Other payables
    57       48  
                 
Total other non-current liabilities
  $ 367     $ 347  
                 
Total other liabilities
  $ 685     $ 613