Consolidated Statements of Cash Flows - American Airlines, Inc. - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)		$ (1,993)		$ (8,885)		$ 1,686
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization		2,335		2,370		2,318
Net gains from sale of property and equipment and sale-leaseback transactions		(22)		(95)		(112)
Special items, net non-cash		83		1,599		376
Pension and postretirement		(321)		(319)		(178)
Deferred income tax provision (benefit)		(555)		(2,568)		560
Share-based compensation		98		91		94
Other, net		38		47		(62)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable		(304)		538		73
Increase in other assets		(402)		(38)		(373)
Increase (decrease) in accounts payable and accrued liabilities		461		(626)		327
Contributions to pension plans		(247)		(9)		(1,230)
Increase (decrease) in other liabilities		139		823		(209)
Net cash provided by (used in) operating activities		704		(6,543)		3,815
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		(208)		(1,958)		(4,268)
Airport construction projects, net of reimbursements		(204)		(173)		(98)
Proceeds from sale of property and equipment		193		351		54
Proceeds from sale-leaseback transactions		181		665		850
Purchases of short-term investments		(19,454)		(5,873)		(3,184)
Sales of short-term investments		13,923		2,803		4,144
Increase in restricted short-term investments		(401)		(308)		(3)
Purchase of equity investment		(28)		0		0
Proceeds on sale of equity investment		5		41		0
Proceeds from vendor		0		90		250
Other investing activities		10		20		12
Net cash used in investing activities		(5,983)		(4,342)		(2,243)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		12,190		11,780		3,960
Payments on long-term debt and finance leases		(7,343)		(3,535)		(4,190)
Deferred financing costs		(209)		(93)		(61)
Other financing activities		208		88		(2)
Net cash provided by (used in) financing activities		5,288		10,994		(1,568)
Net increase in cash and restricted cash		9		109		4
Cash and restricted cash at beginning of year		399	[1]	290	[1]	286
Cash and restricted cash at end of year	[1]	408		399		290
American Airlines, Inc.
Cash flows from operating activities:
Net income (loss)		(1,777)		(8,450)		1,972
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization		2,282		2,313		2,267
Net gains from sale of property and equipment and sale-leaseback transactions		(26)		(98)		(109)
Special items, net non-cash		83		1,588		384
Pension and postretirement		(320)		(319)		(178)
Deferred income tax provision (benefit)		(500)		(2,453)		623
Share-based compensation		95		91		94
Other, net		24		14		(56)
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable		(290)		595		130
Increase in other assets		(370)		42		(321)
Increase (decrease) in accounts payable and accrued liabilities		335		(619)		273
Decrease (increase) in receivables from related parties, net		1,857		4,134		(1,772)
Contributions to pension plans		(247)		(6)		(1,224)
Increase (decrease) in other liabilities		650		1,210		(199)
Net cash provided by (used in) operating activities		3,190		(1,429)		2,429
Cash flows from investing activities:
Capital expenditures, net of aircraft purchase deposit returns		(169)		(1,922)		(4,156)
Airport construction projects, net of reimbursements		(204)		(173)		(98)
Proceeds from sale of property and equipment		192		351		49
Proceeds from sale-leaseback transactions		181		665		850
Purchases of short-term investments		(19,454)		(5,874)		(3,184)
Sales of short-term investments		13,923		2,803		4,144
Increase in restricted short-term investments		(401)		(308)		(3)
Purchase of equity investment		(28)		0		0
Proceeds on sale of equity investment		5		41		0
Proceeds from vendor		0		90		250
Other investing activities		10		19		2
Net cash used in investing activities		(5,945)		(4,308)		(2,146)
Cash flows from financing activities:
Proceeds from issuance of long-term debt		10,209		8,959		3,210
Payments on long-term debt and finance leases		(7,320)		(3,029)		(3,440)
Deferred financing costs		(207)		(85)		(52)
Other financing activities		88		0		0
Net cash provided by (used in) financing activities		2,770		5,845		(282)
Net increase in cash and restricted cash		15		108		1
Cash and restricted cash at beginning of year		385	[2]	277	[2]	276
Cash and restricted cash at end of year	[2]	400		385		277
Air traffic liability
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		1,454		(51)		469
Air traffic liability | American Airlines, Inc.
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		1,454		(51)		469
Loyalty program liability
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		(60)		580		76
Loyalty program liability | American Airlines, Inc.
Changes in operating assets and liabilities:
Increase (decrease) in customer liabilities		$ (60)		$ 580		$ 76

[1] The following table provides a reconciliation of cash and restricted cash to amounts reported within the consolidated balance sheets: Cash$273 $245 $280 Restricted cash included in restricted cash and short-term investments135 154 10 Total cash and restricted cash$408 $399 $290 

[2] The following table provides a reconciliation of cash and restricted cash to amounts reported within the consolidated balance sheets: Cash$265 $231 $267 Restricted cash included in restricted cash and short-term investments135 154 10 Total cash and restricted cash$400 $385 $277