Commitments (Details 1) $ in Millions		Aug. 31, 2015 USD ($)
Schedule of Purchase Commitments [Line Items]
2016 (remainder)		$ 717
2017		1,283
2018		1,777
2019		1,594
2020		1,647
Thereafter		6,034
Total		13,052
Aircraft And Related Equipment Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2016 (remainder)		657
2017		1,240
2018		1,739
2019		1,584
2020		1,638
Thereafter		5,962
Total		12,820
Other Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2016 (remainder)	[1]	60
2017	[1]	43
2018	[1]	38
2019	[1]	10
2020	[1]	9
Thereafter	[1]	72
Total	[1]	$ 232

[1] Primarily advertising and promotions contracts.