Commitments (Details 1) (USD $) In Millions, unless otherwise specified	Feb. 28, 2014
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	$ 249
2015	1,197
2016	1,249
2017	980
2018	1,417
Thereafter	5,477
Total	10,569
Aircraft And Related Equipment Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	217
2015	1,155
2016	1,215
2017	955
2018	1,396
Thereafter	5,388
Total	10,326
Other Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	32	[1]
2015	42	[1]
2016	34	[1]
2017	25	[1]
2018	21	[1]
Thereafter	89	[1]
Total	$ 243	[1]

[1] Primarily advertising and promotions contracts.