Commitments (Details 1) $ in Millions	Nov. 30, 2015 USD ($)
Schedule of Purchase Commitments [Line Items]
2016 (remainder)	$ 486
2017	1,557
2018	1,912
2019	1,647
2020	1,670
Thereafter	5,965
Total	13,237
Aircraft And Related Equipment Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2016 (remainder)	228
2017	1,286
2018	1,755
2019	1,575
2020	1,646
Thereafter	5,867
Total	12,357
Other Commitments [Member]
Schedule of Purchase Commitments [Line Items]
2016 (remainder)	258	[1]
2017	271	[1]
2018	157	[1]
2019	72	[1]
2020	24	[1]
Thereafter	98	[1]
Total	$ 880	[1]

[1] Primarily equipment and advertising contracts.