Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net cash provided by (used in) operating activities		$ (168)	$ 1,651
Cash flows from investing activities:
Capital expenditures and aircraft purchase deposits		(845)	(1,305)
Proceeds from sale-leaseback transactions		280	352
Proceeds from sale of property and equipment		35	7
Purchases of short-term investments		(820)	(570)
Sales of short-term investments		1,237	1,051
Other investing activities		(49)	(15)
Net cash used in investing activities		(162)	(480)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		1,698	400
Payments on long-term debt and finance leases		(926)	(849)
Deferred financing costs		(31)	(6)
Treasury stock repurchases		(171)	(608)
Dividend payments		(43)	(46)
Other financing activities		(1)	0
Net cash provided by (used in) financing activities		526	(1,109)
Net increase in cash and restricted cash		196	62
Cash and restricted cash at beginning of period		290	286
Cash and restricted cash at end of period	[1]	486	348
Non-cash transactions:
Right-of-use (ROU) assets acquired through operating leases		328	332
Settlement of bankruptcy obligations		56	0
Deferred financing costs paid through issuance of debt		17	0
Property and equipment acquired through finance leases		0	2
Supplemental information:
Interest paid, net		239	267
Income taxes paid		2	3
American Airlines, Inc. [Member]
Net cash provided by (used in) operating activities		(401)	956
Cash flows from investing activities:
Capital expenditures and aircraft purchase deposits		(829)	(1,263)
Proceeds from sale-leaseback transactions		280	352
Proceeds from sale of property and equipment		34	7
Purchases of short-term investments		(820)	(570)
Sales of short-term investments		1,237	1,051
Other investing activities		(49)	(15)
Net cash used in investing activities		(147)	(438)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		1,198	400
Payments on long-term debt and finance leases		(426)	(849)
Deferred financing costs		(25)	(6)
Net cash provided by (used in) financing activities		747	(455)
Net increase in cash and restricted cash		199	63
Cash and restricted cash at beginning of period		277	276
Cash and restricted cash at end of period	[2]	476	339
Non-cash transactions:
Right-of-use (ROU) assets acquired through operating leases		320	332
Settlement of bankruptcy obligations		56	0
Deferred financing costs paid through issuance of debt		17	0
Property and equipment acquired through finance leases		0	2
Supplemental information:
Interest paid, net		228	256
Income taxes paid		$ 2	$ 3

[1] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash $ 474
  $ 337
Restricted cash included in restricted cash and short-term investments 12
  11
Total cash and restricted cash $ 486
  $ 348

[2] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash $ 464
  $ 328
Restricted cash included in restricted cash and short-term investments 12
  11
Total cash and restricted cash $ 476
  $ 339