Debt - Components of Long-Term Debt - Guarantees (Detail) $ in Millions	Dec. 31, 2016 USD ($)
Secured Debt [Member] | Special Facility Revenue Bonds [Member]
Debt Instrument [Line Items]
Guarantor obligations, maximum exposure, undiscounted	$ 844
Credit Facilities And Certain EETC Financings [Member]
Debt Instrument [Line Items]
Guarantor obligations, maximum exposure, undiscounted	9,300
American Airlines, Inc. [Member] | Unsecured Debt [Member] | 5.50% Senior Notes [Member]
Debt Instrument [Line Items]
Guarantor obligations, maximum exposure, undiscounted	750
American Airlines, Inc. [Member] | Unsecured Debt [Member] | 6.125% Senior Notes [Member]
Debt Instrument [Line Items]
Guarantor obligations, maximum exposure, undiscounted	500
American Airlines, Inc. [Member] | Unsecured Debt [Member] | 4.625% Senior Notes [Member]
Debt Instrument [Line Items]
Guarantor obligations, maximum exposure, undiscounted	$ 500