Commitments (Details 1) $ in Millions	Feb. 29, 2016 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
2016 (remainder)	$ 137
2017	1,330
2018	1,789
2019	1,581
2020	1,642
Thereafter	5,855
Total	12,334
Aircraft And Related Equipment Commitments [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
2016 (remainder)	94
2017	1,283
2018	1,748
2019	1,569
2020	1,633
Thereafter	5,779
Total	12,106
Other Commitments [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
2016 (remainder)	43	[1]
2017	47	[1]
2018	41	[1]
2019	12	[1]
2020	9	[1]
Thereafter	76	[1]
Total	$ 228	[1]

[1] Primarily advertising and promotions contracts.