Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Transactions with Related Parties - Net Receivables (Payables) to Related Parties (Details) - USD ($) $ in Millions	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Senior Notes 6.50% Due 2025 \| Senior Notes
Related Party Transaction [Line Items]
Fixed interest rate per annum		6.50%
American Airlines, Inc.
Related Party Transaction [Line Items]
Receivables from related parties, net	$ 7,877		$ 12,451
American Airlines, Inc. \| Senior Notes 6.50% Due 2025 \| Senior Notes
Related Party Transaction [Line Items]
Fixed interest rate per annum	6.50%
American Airlines, Inc. \| AAG
Related Party Transaction [Line Items]
Receivables from related parties, net	$ 9,940		14,597
American Airlines, Inc. \| AAG's Wholly-owned Subsidiaries
Related Party Transaction [Line Items]
Receivables from related parties, net	$ (2,063)		$ (2,146)