Debt - Components of Long-Term Debt - 2013, 2014 and 2016 Credit Facilities (Detail) - Secured Debt [Member]	12 Months Ended
	Dec. 31, 2016 USD ($)
2013 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,900,000,000
Principal outstanding or drawn	$ 1,840,000,000
2013 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
2013 Credit Facilities [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,400,000,000
2013 Credit Facilities [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.00%
2014 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 750,000,000
Principal outstanding or drawn	$ 735,000,000
2014 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
2014 Credit Facilities [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,025,000,000
2014 Credit Facilities [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.00%
April 2016 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,000,000,000
Principal outstanding or drawn	$ 1,000,000,000
April 2016 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
December 2016 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,250,000,000
Principal outstanding or drawn	$ 1,250,000,000
December 2016 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,900,000,000
Principal outstanding or drawn	$ 1,840,000,000
American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,400,000,000
American Airlines, Inc. [Member] | 2013 Credit Facilities [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.00%
American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 750,000,000
Principal outstanding or drawn	$ 735,000,000
American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 1,025,000,000
American Airlines, Inc. [Member] | 2014 Credit Facilities [Member] | Revolving Credit Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.00%
American Airlines, Inc. [Member] | April 2016 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,000,000,000
Principal outstanding or drawn	$ 1,000,000,000
American Airlines, Inc. [Member] | April 2016 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
American Airlines, Inc. [Member] | December 2016 Credit Facilities [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,250,000,000
Principal outstanding or drawn	$ 1,250,000,000
American Airlines, Inc. [Member] | December 2016 Credit Facilities [Member] | Term Loan Facility [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%