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Purchase Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2011
Commitments and Contingencies Disclosure [Abstract]  
Unrecorded Unconditional Purchase Obligations Disclosure [Text Block]
The following table summarizes our aircraft purchase commitments at June 30, 2011:
Years Ending December 31,
(in millions)
Total
Six months ending December 31, 2011
$
30


2012
70


2020 to 2022
2,500


Total
$
2,600