Consolidated Statements of Cash Flows - American Airlines, Inc. - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)		$ 822		$ 127		$ (1,993)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		2,254		2,298		2,335
Debt extinguishment costs		267		3		31
Special items, net non-cash		41		226		52
Pension and postretirement		(13)		(405)		(321)
Deferred income tax provision (benefit)		299		65		(555)
Share-based compensation		102		78		98
Other, net		(205)		(37)		16
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable		95		(637)		(304)
Increase in other assets		(11)		(775)		(402)
Increase in accounts payable and accrued liabilities		873		585		461
Contributions to pension plans		(73)		(5)		(247)
Increase (decrease) in other liabilities		(285)		(18)		139
Net cash provided by operating activities		3,803		2,173		704
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		(2,596)		(2,546)		(208)
Proceeds from sale of property and equipment and sale-leaseback transactions		230		147		374
Sales of short-term investments		8,861		14,972		13,923
Purchases of short-term investments		(7,323)		(11,257)		(19,454)
Decrease (increase) in restricted short-term investments		51		1		(401)
Purchase of equity investments		0		(321)		(28)
Other investing activities		275		(360)		(189)
Net cash provided by (used in) investing activities		(502)		636		(5,983)
Cash flows from financing activities:
Payments on long-term debt and finance leases		(7,718)		(3,752)		(7,343)
Proceeds from issuance of long-term debt		4,822		1,069		12,190
Other financing activities		(310)		52		(19)
Net cash provided by (used in) financing activities		(3,206)		(2,631)		5,288
Net increase in cash and restricted cash		95		178		9
Cash and restricted cash at beginning of year		586	[1]	408	[1]	399
Cash and restricted cash at end of year	[1]	681		586		408
American Airlines, Inc.
Cash flows from operating activities:
Net income (loss)		1,188		338		(1,777)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		2,198		2,238		2,282
Debt extinguishment costs		267		1		31
Special items, net non-cash		41		226		52
Pension and postretirement		(14)		(404)		(320)
Deferred income tax provision (benefit)		394		122		(500)
Share-based compensation		97		75		95
Other, net		(216)		(48)		(2)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable		104		(636)		(290)
Increase in other assets		(2)		(744)		(370)
Increase in accounts payable and accrued liabilities		828		549		335
Decrease (increase) in receivables from related parties, net		(482)		(1,044)		1,857
Contributions to pension plans		(71)		(4)		(247)
Increase (decrease) in other liabilities		(263)		(8)		650
Net cash provided by operating activities		3,706		1,329		3,190
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		(2,542)		(2,489)		(169)
Proceeds from sale of property and equipment and sale-leaseback transactions		230		147		373
Sales of short-term investments		8,861		14,972		13,923
Purchases of short-term investments		(7,324)		(11,257)		(19,454)
Decrease (increase) in restricted short-term investments		51		1		(401)
Purchase of equity investments		0		(321)		(28)
Other investing activities		275		(360)		(189)
Net cash provided by (used in) investing activities		(449)		693		(5,945)
Cash flows from financing activities:
Payments on long-term debt and finance leases		(7,697)		(2,991)		(7,320)
Proceeds from issuance of long-term debt		4,822		1,069		10,209
Other financing activities		(287)		75		(119)
Net cash provided by (used in) financing activities		(3,162)		(1,847)		2,770
Net increase in cash and restricted cash		95		175		15
Cash and restricted cash at beginning of year		575	[2]	400	[2]	385
Cash and restricted cash at end of year	[2]	670		575		400
Air traffic liability
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		(545)		658		1,454
Air traffic liability | American Airlines, Inc.
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		(545)		658		1,454
Loyalty program liability
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		182		10		(60)
Loyalty program liability | American Airlines, Inc.
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		$ 182		$ 10		$ (60)

[1] The following table provides a reconciliation of cash and restricted cash to amounts reported within the consolidated balance sheets: Cash$578 $440 $273 Restricted cash included in restricted cash and short-term investments103 146 135 Total cash and restricted cash$681 $586 $408 

[2] The following table provides a reconciliation of cash and restricted cash to amounts reported within the consolidated balance sheets: Cash$567 $429 $265 Restricted cash included in restricted cash and short-term investments103 146 135 Total cash and restricted cash$670 $575 $400