Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2018

SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]

Components of Valuation and Qualifying Accounts

	Balance at Beginning of Year		Additions Charged to Statement of Operations Accounts		Deductions			Balance at End of Year
Allowance for obsolescence of spare parts
Year ended December 31, 2018	$	769	$	70	$	(25	)	$	814
Year ended December 31, 2017	765		29		(25		)	769
Year ended December 31, 2016	728		37		—			765
Allowance for uncollectible accounts
Year ended December 31, 2018	$	24	$	42	$	(37	)	$	29
Year ended December 31, 2017	36		43		(55		)	24
Year ended December 31, 2016	41		47		(52		)	36

American Airlines, Inc. [Member]

SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]

Components of Valuation and Qualifying Accounts

	Balance at Beginning of Year		Additions Charged to Statement of Operations Accounts		Deductions			Balance at End of Year
Allowance for obsolescence of spare parts
Year ended December 31, 2018	$	717	$	57	$	(20	)	$	754
Year ended December 31, 2017	720		18		(21		)	717
Year ended December 31, 2016	689		28		3			720
Allowance for uncollectible accounts
Year ended December 31, 2018	$	21	$	39	$	(36	)	$	24
Year ended December 31, 2017	35		41		(55		)	21
Year ended December 31, 2016	37		47		(49		)	35