Financial Information for Subsidiary Guarantors and Non-guarantor Subsidiaries - Consolidating Statement of Comprehensive Income (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 3,281	$ 1,693	$ 1,704	$ 932	$ 597	$ 942	$ 864	$ 480	$ 7,610	$ 2,882	$ (1,834)
Defined benefit pension plans and retiree medical:
Amortization of actuarial loss and prior service cost									(108)	(163)	(142)
Current year change									(51)	(2,633)	1,577
Current year change									(51)
Derivative financial instruments:
Change in fair value										(54)	18
Reclassification into earnings									(9)	(4)	34
Unrealized gain (loss) on investments:
Net change in value									(5)	(3)	(1)
Unrealized gain (loss) on investments:
Net change in value									(5)	(3)	(1)
Reversal of non-cash tax provision (benefit)										330	(538)
Net current-period other comprehensive income (loss), net of tax									(173)	(2,527)	948
Total comprehensive income (loss)									7,437	355	(886)
American Airlines, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 4,397	$ 1,450	$ 1,465	$ 808	$ 597	$ 954	$ 870	$ 527	8,120	2,948	(1,717)
Defined benefit pension plans and retiree medical:
Current year change									(51)	(2,621)	1,577
Derivative financial instruments:
Change in fair value										(52)	18
Reclassification into earnings									(9)	(4)	34
Unrealized gain (loss) on investments:
Net change in value									(6)	(4)	(1)
Unrealized gain (loss) on investments:
Net change in value									(6)	(4)	(1)
Reversal of non-cash tax provision (benefit)										328	(538)
Net current-period other comprehensive income (loss), net of tax									(175)	(2,516)	948
Total comprehensive income (loss)									7,945	432	$ (769)
Reportable Legal Entities [Member] | American Airlines Group (Parent Company Only) [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									7,610	2,882
Derivative financial instruments:
Change in fair value										(2)
Unrealized gain (loss) on investments:
Net change in value										1
Unrealized gain (loss) on investments:
Net change in value										1
Reversal of non-cash tax provision (benefit)										2
Net current-period other comprehensive income (loss), net of tax										1
Total comprehensive income (loss)									7,610	2,883
Reportable Legal Entities [Member] | American Airlines, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									8,120	2,948
Defined benefit pension plans and retiree medical:
Amortization of actuarial loss and prior service cost									(109)	(163)
Current year change										(2,621)
Current year change									(51)
Derivative financial instruments:
Change in fair value										(52)
Reclassification into earnings									(9)	(4)
Unrealized gain (loss) on investments:
Net change in value									(6)	(4)
Unrealized gain (loss) on investments:
Net change in value									(6)	(4)
Reversal of non-cash tax provision (benefit)										328
Net current-period other comprehensive income (loss), net of tax									(175)	(2,516)
Total comprehensive income (loss)									7,945	432
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									42	(4)
Defined benefit pension plans and retiree medical:
Current year change										(12)
Current year change									1
Unrealized gain (loss) on investments:
Net current-period other comprehensive income (loss), net of tax									1	(12)
Total comprehensive income (loss)									43	(16)
Eliminations and Reclassifications [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)									(8,162)	(2,944)
Defined benefit pension plans and retiree medical:
Amortization of actuarial loss and prior service cost									1
Current year change									(1)
Unrealized gain (loss) on investments:
Net change in value									1
Unrealized gain (loss) on investments:
Net change in value									1
Net current-period other comprehensive income (loss), net of tax									1
Total comprehensive income (loss)									$ (8,161)	$ (2,944)