Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash	$ 275	$ 295
Short-term investments	4,485	4,771
Restricted cash and short-term investments	154	318
Accounts receivable, net	1,706	1,752
Aircraft fuel, spare parts and supplies, net	1,522	1,359
Prepaid expenses and other	495	651
Total current assets	8,637	9,146
Operating property and equipment
Flight equipment	41,499	40,318
Ground property and equipment	8,764	8,267
Equipment purchase deposits	1,278	1,217
Total property and equipment, at cost	51,541	49,802
Less accumulated depreciation and amortization	(17,443)	(15,646)
Total property and equipment, net	34,098	34,156
Operating lease right-of-use assets	9,151	0
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization of $663 and $622, respectively	2,137	2,203
Deferred tax asset	1,145	1,816
Other assets	1,321	1,373
Total other assets	8,694	9,483
Total assets	60,580	52,785
Current liabilities
Current maturities of long-term debt and finance leases	3,294	2,554
Accounts payable	1,773	1,688
Accrued salaries and wages	1,427	1,672
Operating lease liabilities	1,654	0
Other accrued liabilities	2,342	2,281
Total current liabilities	18,096	15,358
Noncurrent liabilities
Long-term debt and finance leases, net of current maturities	21,179	22,511
Pension and postretirement benefits	6,907	7,497
Loyalty program liability	5,272	5,701
Operating lease liabilities	7,902	0
Other liabilities	1,393	2,498
Total noncurrent liabilities	42,653	38,207
Stockholders' equity (deficit)
Common stock	5	5
Additional paid-in capital	4,964	5,714
Accumulated other comprehensive loss	(5,274)	(5,154)
Retained earnings (deficit)	136	(1,345)
Total stockholders' deficit	(169)	(780)
Total liabilities and stockholders’ equity (deficit)	60,580	52,785
Air traffic [Member]
Current liabilities
Customer liabilities	4,339	4,042
Loyalty program [Member]
Current liabilities
Customer liabilities	3,267	3,121
Noncurrent liabilities
Loyalty program liability		5,701
American Airlines, Inc. [Member]
Current assets
Cash	265	287
Short-term investments	4,482	4,768
Restricted cash and short-term investments	154	318
Accounts receivable, net	1,755	1,755
Receivables from related parties, net	10,666	8,822
Aircraft fuel, spare parts and supplies, net	1,442	1,294
Prepaid expenses and other	493	647
Total current assets	19,257	17,891
Operating property and equipment
Flight equipment	41,180	39,993
Ground property and equipment	8,466	8,006
Equipment purchase deposits	1,277	1,217
Total property and equipment, at cost	50,923	49,216
Less accumulated depreciation and amortization	(17,123)	(15,354)
Total property and equipment, net	33,800	33,862
Operating lease right-of-use assets	9,094	0
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization of $663 and $622, respectively	2,137	2,203
Deferred tax asset	1,280	2,071
Other assets	1,219	1,283
Total other assets	8,727	9,648
Total assets	70,878	61,401
Current liabilities
Current maturities of long-term debt and finance leases	2,547	2,058
Accounts payable	1,707	1,625
Accrued salaries and wages	1,363	1,613
Operating lease liabilities	1,639	0
Other accrued liabilities	2,259	2,209
Total current liabilities	17,121	14,668
Noncurrent liabilities
Long-term debt and finance leases, net of current maturities	20,650	21,236
Pension and postretirement benefits	6,863	7,452
Loyalty program liability	5,272	5,701
Operating lease liabilities	7,857	0
Other liabilities	1,345	2,456
Total noncurrent liabilities	41,987	36,845
Commitments and contingencies
Stockholders' equity (deficit)
Common stock	0	0
Additional paid-in capital	16,802	16,716
Accumulated other comprehensive loss	(5,370)	(5,251)
Retained earnings (deficit)	338	(1,577)
Total stockholders' deficit	11,770	9,888
Total liabilities and stockholders’ equity (deficit)	70,878	61,401
American Airlines, Inc. [Member] | Air traffic [Member]
Current liabilities
Customer liabilities	4,339	4,042
American Airlines, Inc. [Member] | Loyalty program [Member]
Current liabilities
Customer liabilities	$ 3,267	3,121
Noncurrent liabilities
Loyalty program liability		$ 5,701