Financial Information for Subsidiary Guarantors and Non-guarantor Subsidiaries - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current assets
Cash	$ 390	$ 994	$ 1,140	$ 480
Short-term investments	5,864	6,309
Restricted cash and short-term investments	695	774
Accounts receivable, net	1,425	1,771
Aircraft fuel, spare parts and supplies, net	863	1,004
Prepaid expenses and other	748	898
Total current assets	9,985	11,750
Operating property and equipment	27,510	23,084
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization	2,249	2,240
Deferred tax asset	2,477
Other assets	2,103	2,060
Total other assets	10,920	8,391
Total assets	48,415	43,225
Current liabilities
Current maturities of long-term debt and capital leases	2,231	1,677
Accounts payable	1,563	1,377
Air traffic liability	3,747	4,252
Loyalty program liability	2,525	2,807
Other accrued liabilities	3,539	3,291
Total current liabilities	13,605	13,404
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	18,330	16,043
Pension and postretirement benefits	7,450	7,562
Bankruptcy settlement obligations	193	325
Other liabilities	3,202	3,870
Total noncurrent liabilities	29,175	27,800
Stockholders' equity
Common stock	6	7
Additional paid-in capital	11,591	15,135
Accumulated other comprehensive loss	(4,732)	(4,559)	(2,032)
Retained earnings (deficit)	(1,230)	(8,562)
Total stockholders' equity	5,635	2,021	(2,731)	(7,987)
Total liabilities and stockholders' equity	48,415	43,225
American Airlines, Inc. [Member]
Current assets
Cash	364	984	1,132	474
Short-term investments	5,862	6,306
Restricted cash and short-term investments	695	774
Accounts receivable, net	1,420	1,769
Receivables from related parties, net	1,981
Aircraft fuel, spare parts and supplies, net	796	919
Prepaid expenses and other	740	885
Total current assets	11,858	11,637
Operating property and equipment	27,236	22,805
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization	2,249	2,240
Deferred tax asset	2,932
Other assets	2,073	2,014
Total other assets	11,345	8,345
Total assets	50,439	42,787
Current liabilities
Current maturities of long-term debt and capital leases	2,234	1,678
Accounts payable	1,517	1,316
Payables to related parties, net		1,703
Air traffic liability	3,747	4,252
Loyalty program liability	2,525	2,807
Total current liabilities	13,377	14,895
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	16,592	14,804
Pension and postretirement benefits	7,410	7,522
Bankruptcy settlement obligations	193	325
Total noncurrent liabilities	27,364	26,486
Stockholders' equity
Additional paid-in capital	16,521	16,174
Accumulated other comprehensive loss	(4,831)	(4,656)	(2,140)
Retained earnings (deficit)	(1,992)	(10,112)
Total stockholders' equity	9,698	1,406	(4,398)	$ (9,962)
Total liabilities and stockholders' equity	50,439	42,787
Reportable Legal Entities [Member] | American Airlines Group (Parent Company Only) [Member]
Current assets
Cash	19	3	2
Accounts receivable, net	1
Receivables from related parties, net		2,050
Prepaid expenses and other		154
Total current assets	20	2,207
Other assets
Investments in subsidiaries	9,433	1,849
Deferred tax asset	40
Other assets	13	53
Total other assets	9,486	1,902
Total assets	9,506	4,109
Current liabilities
Payables to related parties, net	2,031	634
Other accrued liabilities	69	17
Total current liabilities	2,100	651
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	1,771	1,282
Other liabilities		155
Total noncurrent liabilities	1,771	1,437
Stockholders' equity
Common stock	6	7
Additional paid-in capital	11,591	15,135
Accumulated other comprehensive loss	(4,732)	(4,559)
Retained earnings (deficit)	(1,230)	(8,562)
Total stockholders' equity	5,635	2,021
Total liabilities and stockholders' equity	9,506	4,109
Reportable Legal Entities [Member] | American Airlines, Inc. [Member]
Current assets
Cash	364	984	1,132
Short-term investments	5,862	6,306
Restricted cash and short-term investments	695	774
Accounts receivable, net	1,420	1,769
Receivables from related parties, net	1,981
Aircraft fuel, spare parts and supplies, net	796	919
Prepaid expenses and other	740	885
Total current assets	11,858	11,637
Operating property and equipment	27,236	22,805
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization	2,249	2,240
Deferred tax asset	2,932
Other assets	2,073	2,014
Total other assets	11,345	8,345
Total assets	50,439	42,787
Current liabilities
Current maturities of long-term debt and capital leases	2,234	1,678
Accounts payable	1,517	1,316
Payables to related parties, net		1,703
Air traffic liability	3,747	4,252
Loyalty program liability	2,525	2,807
Other accrued liabilities	3,354	3,139
Total current liabilities	13,377	14,895
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	16,592	14,804
Pension and postretirement benefits	7,410	7,522
Bankruptcy settlement obligations	193	325
Other liabilities	3,169	3,835
Total noncurrent liabilities	27,364	26,486
Stockholders' equity
Additional paid-in capital	16,521	16,174
Accumulated other comprehensive loss	(4,831)	(4,656)
Retained earnings (deficit)	(1,992)	(10,112)
Total stockholders' equity	9,698	1,406
Total liabilities and stockholders' equity	50,439	42,787
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Current assets
Cash	7	7	$ 6
Short-term investments	2	3
Accounts receivable, net	18	15
Receivables from related parties, net	66	526
Aircraft fuel, spare parts and supplies, net	67	85
Prepaid expenses and other	8	15
Total current assets	168	651
Operating property and equipment	274	279
Other assets
Deferred tax asset	62
Other assets	36	38
Total other assets	98	38
Total assets	540	968
Current liabilities
Accounts payable	62	61
Payables to related parties, net		239
Other accrued liabilities	115	138
Total current liabilities	177	438
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities		1
Pension and postretirement benefits	40	40
Other liabilities	53	291
Total noncurrent liabilities	93	332
Stockholders' equity
Additional paid-in capital	198	199
Accumulated other comprehensive loss	(11)	(12)
Retained earnings (deficit)	83	11
Total stockholders' equity	270	198
Total liabilities and stockholders' equity	540	968
Eliminations and Reclassifications [Member]
Current assets
Accounts receivable, net	(14)	(13)
Receivables from related parties, net	(2,047)	(2,576)
Prepaid expenses and other		(156)
Total current assets	(2,061)	(2,745)
Other assets
Investments in subsidiaries	(9,433)	(1,849)
Deferred tax asset	(557)
Other assets	(19)	(45)
Total other assets	(10,009)	(1,894)
Total assets	(12,070)	(4,639)
Current liabilities
Current maturities of long-term debt and capital leases	(3)	(1)
Accounts payable	(16)
Payables to related parties, net	(2,031)	(2,576)
Other accrued liabilities	1	(3)
Total current liabilities	(2,049)	(2,580)
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	(33)	(44)
Other liabilities	(20)	(411)
Total noncurrent liabilities	(53)	(455)
Stockholders' equity
Additional paid-in capital	(16,719)	(16,373)
Accumulated other comprehensive loss	4,842	4,668
Retained earnings (deficit)	1,909	10,101
Total stockholders' equity	(9,968)	(1,604)
Total liabilities and stockholders' equity	$ (12,070)	$ (4,639)