Accumulated Other Comprehensive Income (Loss) - Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reversal of non-cash tax provision		$ 330
Amount reclassified from accumulated other comprehensive income (loss)	$ (116)	160
American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reversal of non-cash tax provision		328
Amount reclassified from accumulated other comprehensive income (loss)	(117)	157
Prior Service Cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	(212)	(202)
Prior Service Cost | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	(212)	(202)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	104	39
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] | American Airlines, Inc. [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	103	39
Derivative Financial Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	(9)	(4)
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)	(9)	(4)
Unrealized Gain/(Loss) on Investments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount reclassified from accumulated other comprehensive income (loss)	1	(3)
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)	$ 1	$ (4)