Accumulated Other Comprehensive Income (Loss) - Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	$ (65)	$ (116)
American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(65)	(117)
Prior Service Cost (Benefit) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(134)	(212)
Prior Service Cost (Benefit) [Member] | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	(134)	(212)
Actuarial Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	69	104
Actuarial Loss [Member] | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax	$ 69	103
Derivative Financial Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax		(9)
Derivative Financial Instruments [Member] | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax		(9)
Unrealized Gain/(Loss) on Investments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax		1
Unrealized Gain/(Loss) on Investments [Member] | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss), net of tax		$ 1