Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2019

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

Valuation and Qualifying Accounts

 Valuation and Qualifying Accounts (in millions)

	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, 2019	$	814	$	91	$	(121	)	$	784
Year ended December 31, 2018	769		70		(25		)	814
Year ended December 31, 2017	765		29		(25		)	769
Allowance for uncollectible accounts
Year ended December 31, 2019	$	29	$	19	$	(17	)	$	31
Year ended December 31, 2018	24		42		(37		)	29
Year ended December 31, 2017	36		43		(55		)	24

American Airlines, Inc. [Member]

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

Valuation and Qualifying Accounts

Valuation and Qualifying Accounts (in millions)

	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, 2019	$	754	$	79	$	(104	)	$	729
Year ended December 31, 2018	717		57		(20		)	754
Year ended December 31, 2017	720		18		(21		)	717
Allowance for uncollectible accounts
Year ended December 31, 2019	$	24	$	17	$	(16	)	$	25
Year ended December 31, 2018	21		39		(36		)	24
Year ended December 31, 2017	35		41		(55		)	21