Financial Information for Subsidiary Guarantors and Non-guarantor Subsidiaries - Condensed Consolidating Statement of Comprehensive Income (Loss) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 932	$ 480
Other comprehensive income (loss) before tax:
Defined benefit pension plans and retiree medical	(27)	(45)
Derivative financial instruments:
Change in fair value	0	(67)
Reclassification into earnings	(6)	7
Unrealized gain on investments:
Net change in value	2	2
Other comprehensive loss before tax	(31)	(103)
Non-cash tax provision	0	0
Comprehensive income	901	377
Eliminations and Reclassifications [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(1,064)	(515)
Unrealized gain on investments:
Non-cash tax provision	0	0
Comprehensive income	(1,064)	(515)
American Airlines Group (Parent Company Only) [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	932	424
Unrealized gain on investments:
Non-cash tax provision	0	0
Comprehensive income	932	424
American Airlines, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	569	401
Other comprehensive income (loss) before tax:
Defined benefit pension plans and retiree medical	(26)	(44)
Derivative financial instruments:
Change in fair value	0	(67)
Reclassification into earnings	(6)	7
Unrealized gain on investments:
Net change in value	1	2
Other comprehensive loss before tax	(31)	(102)
Non-cash tax provision	0	0
Comprehensive income	538	299
US Airways Group [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	242	52
Unrealized gain on investments:
Non-cash tax provision	0	0
Comprehensive income	242	52
US Airways [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	239	126
Other comprehensive income (loss) before tax:
Defined benefit pension plans and retiree medical	(1)	(1)
Unrealized gain on investments:
Net change in value	1
Other comprehensive loss before tax	0	(1)
Non-cash tax provision	0	0
Comprehensive income	239	125
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	14	(8)
Unrealized gain on investments:
Non-cash tax provision	0	0
Comprehensive income	$ 14	$ (8)