Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Reconciliation of benefit obligation:
Plan amendments				$ (1,900)
Other		$ 24
American Airlines, Inc. [Member]
Reconciliation of benefit obligation:
Plan amendments				$ (1,900)
Other		24
Pension Benefits [Member]
Reconciliation of benefit obligation:
Obligation beginning balance	$ 16,395	17,594
Service cost	2	2
Interest cost	749	737	$ 746
Actuarial (gain) loss	729	(1,159)
Settlements	(2)	(3)
Benefit payments	(635)	(776)
Obligation end of period	17,238	16,395	17,594
Pension Benefits [Member] | American Airlines, Inc. [Member]
Reconciliation of benefit obligation:
Obligation beginning balance	16,310	17,504
Service cost	2	2
Interest cost	746	733	742
Actuarial (gain) loss	725	(1,153)
Settlements	(2)	(3)
Benefit payments	(633)	(773)
Obligation end of period	17,148	16,310	17,504
Retiree Medical And Other Postretirement Benefits [Member]
Reconciliation of benefit obligation:
Obligation beginning balance	1,131	1,325
Service cost	3	3
Interest cost	47	50	61
Actuarial (gain) loss	(105)	(177)
Plan amendments	7
Benefit payments	(92)	(94)
Other		24
Obligation end of period	991	1,131	1,325
Retiree Medical And Other Postretirement Benefits [Member] | American Airlines, Inc. [Member]
Reconciliation of benefit obligation:
Obligation beginning balance	1,129	1,324
Service cost	3	3
Interest cost	47	50	61
Actuarial (gain) loss	(104)	(178)
Plan amendments	7
Benefit payments	(92)	(94)
Other		24
Obligation end of period	$ 990	$ 1,129	$ 1,324