Commitments (Details 3) (USD $) In Millions, unless otherwise specified	Nov. 30, 2012
Schedule of Future Minimum Operating Lease Payments [Line Items]
2013 (remainder)	$ 1,106
2014	1,845
2015	1,712
2016	1,518
2017	1,574
Thereafter	7,153
Total	14,908
Aircraft and Related Equipment [Member]
Schedule of Future Minimum Operating Lease Payments [Line Items]
2013 (remainder)	392
2014	462
2015	448
2016	453
2017	391
Thereafter	1,150
Total	3,296
Facilities and Other [Member]
Schedule of Future Minimum Operating Lease Payments [Line Items]
2013 (remainder)	714
2014	1,383
2015	1,264
2016	1,065
2017	1,183
Thereafter	6,003
Total	$ 11,612