Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Net cash provided by (used in) operating activities		$ 174	$ (168)
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		19	(845)
Proceeds from sale of property and equipment		108	35
Proceeds from sale-leaseback transactions		99	280
Purchases of short-term investments		(8,557)	(820)
Sales of short-term investments		1,415	1,237
Increase in restricted short-term investments		(194)	0
Other investing activities		(42)	(49)
Net cash used in investing activities		(7,152)	(162)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		10,861	1,698
Payments on long-term debt and finance leases		(4,054)	(926)
Proceeds from issuance of equity		316	0
Deferred financing costs		(162)	(31)
Treasury stock repurchases and shares withheld for taxes pursuant to employee stock plans		(13)	(171)
Dividend payments		0	(43)
Other financing activities		65	(1)
Net cash provided by financing activities		7,013	526
Net increase in cash and restricted cash		35	196
Cash and restricted cash at beginning of period		399	290
Cash and restricted cash at end of period	[1]	434	486
Non-cash transactions:
Right-of-use (ROU) assets acquired through operating leases		359	328
Property and equipment acquired through finance leases		22	0
Settlement of bankruptcy obligations		0	56
Deferred financing costs paid through issuance of debt		0	17
Supplemental information:
Interest paid, net		479	239
Income taxes paid		0	2
American Airlines, Inc.
Net cash provided by (used in) operating activities		1,428	(401)
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		24	(829)
Proceeds from sale of property and equipment		108	34
Proceeds from sale-leaseback transactions		99	280
Purchases of short-term investments		(8,545)	(820)
Sales of short-term investments		1,415	1,237
Increase in restricted short-term investments		(194)	0
Other investing activities		(42)	(49)
Net cash used in investing activities		(7,135)	(147)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		9,965	1,198
Payments on long-term debt and finance leases		(4,054)	(426)
Deferred financing costs		(162)	(25)
Net cash provided by financing activities		5,749	747
Net increase in cash and restricted cash		42	199
Cash and restricted cash at beginning of period		385	277
Cash and restricted cash at end of period	[2]	427	476
Non-cash transactions:
Right-of-use (ROU) assets acquired through operating leases		358	320
Property and equipment acquired through finance leases		22	0
Settlement of bankruptcy obligations		0	56
Deferred financing costs paid through issuance of debt		0	17
Supplemental information:
Interest paid, net		426	228
Income taxes paid		$ 0	$ 2

[1] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash$277 $474 Restricted cash included in restricted cash and short-term investments157 12 Total cash and restricted cash$434 $486 

[2] The following table provides a reconciliation of cash and restricted cash to amounts reported within the condensed consolidated balance sheets: Cash$270 $464 Restricted cash included in restricted cash and short-term investments157 12 Total cash and restricted cash$427 $476