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Commitments (Details 1) (USD $)
In Millions, unless otherwise specified
Nov. 30, 2011
Schedule of Purchase Commitments [Line Items]  
2012 (remainder) $ 824
2013 1,111
2014 837
2015 586
2016 620
Thereafter 3,355
Aircraft And Related Equipment Commitments [Member]
 
Schedule of Purchase Commitments [Line Items]  
2012 (remainder) 389
2013 983
2014 780
2015 555
2016 580
Thereafter 3,225
Other Commitments [Member]
 
Schedule of Purchase Commitments [Line Items]  
2012 (remainder) 435 [1]
2013 128 [1]
2014 57 [1]
2015 31 [1]
2016 40 [1]
Thereafter $ 130 [1]
[1] Primarily vehicles, facilities, advertising and promotions contracts, and for the remainder of 2012, a total of $291 million of required quarterly contributions to our U.S. Pension Plans.