Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Net cash provided by operating activities		$ 2,387	$ 2,894
Cash flows from investing activities:
Capital expenditures and aircraft purchase deposits		(2,323)	(1,731)
Proceeds from sale of property and equipment and sale-leaseback transactions		537	258
Purchases of short-term investments		(2,201)	(1,184)
Sales of short-term investments		1,611	1,579
Decrease (increase) in restricted short-term investments		(2)	43
Other investing activities		(35)	0
Net cash used in investing activities		(2,413)	(1,035)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		2,589	892
Payments on long-term debt and finance leases		(1,781)	(1,884)
Deferred financing costs		(22)	(28)
Treasury stock repurchases		(625)	(837)
Dividend payments		(90)	(94)
Other financing activities		(1)	(1)
Net cash provided by (used in) financing activities		70	(1,952)
Net increase (decrease) in cash and restricted cash		44	(93)
Cash and restricted cash at beginning of period		286	398
Cash and restricted cash at end of period	[1]	330	305
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases		708	315
Finance leases		4	0
Settlement of bankruptcy obligations		7	0
Supplemental information:
Interest paid, net		559	542
Income taxes paid		4	13
American Airlines, Inc. [Member]
Net cash provided by operating activities		2,335	1,426
Cash flows from investing activities:
Capital expenditures and aircraft purchase deposits		(2,255)	(1,703)
Proceeds from sale of property and equipment and sale-leaseback transactions		537	255
Purchases of short-term investments		(2,190)	(1,176)
Sales of short-term investments		1,611	1,579
Decrease (increase) in restricted short-term investments		(2)	43
Other investing activities		(35)	0
Net cash used in investing activities		(2,334)	(1,002)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		1,839	892
Payments on long-term debt and finance leases		(1,781)	(1,384)
Deferred financing costs		(13)	(28)
Net cash provided by (used in) financing activities		45	(520)
Net increase (decrease) in cash and restricted cash		46	(96)
Cash and restricted cash at beginning of period		276	390
Cash and restricted cash at end of period	[2]	322	294
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases		708	293
Finance leases		4	0
Settlement of bankruptcy obligations		7	0
Supplemental information:
Interest paid, net		526	493
Income taxes paid		$ 4	$ 12

[1] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash $ 319
  $ 293
Restricted cash included in restricted cash and short-term investments 11
  12
Total cash and restricted cash $ 330
  $ 305

[2] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash $ 311
  $ 282
Restricted cash included in restricted cash and short-term investments 11
  12
Total cash and restricted cash $ 322
  $ 294