Commitments (Details 1) (USD $) In Millions, unless otherwise specified	Aug. 31, 2013
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	$ 890
2015	1,152
2016	1,111
2017	913
2018	1,494
Thereafter	5,297
Total	10,857
Aircraft And Related Equipment Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	828
2015	1,121
2016	1,083
2017	891
2018	1,475
Thereafter	5,211
Total	10,609
Other Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2014 (remainder)	62	[1]
2015	31	[1]
2016	28	[1]
2017	22	[1]
2018	19	[1]
Thereafter	86	[1]
Total	$ 248	[1]

[1] Primarily advertising and promotions contracts.