Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions			1 Months Ended	6 Months Ended
	Jul. 23, 2015	Jan. 27, 2015	Apr. 30, 2015	Jun. 30, 2015	Jul. 14, 2015	Feb. 10, 2015
Subsequent Event [Line Items]
Stock repurchase program, new authorized amount		$ 2,000,000,000
Share repurchase program completion date		Dec. 31, 2016		Dec. 31, 2016
Dividends payable, record date		Feb. 09, 2015	May 04, 2015
Dividends payable, payable date		Feb. 23, 2015	May 18, 2015
Shares released from restriction and issued						0.8
Common Stock [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued						0.8
American Airlines, Inc. [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued						0.8
American Airlines, Inc. [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued						0.8
Subsequent Event [Member]
Subsequent Event [Line Items]
Stock repurchase program, new authorized amount	$ 2,000,000,000
Shares released from restriction and issued					0.6
Common stock shares withheld or sold related to tax obligations					0.1
Subsequent Event [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued					0.6
Subsequent Event [Member] | Dividend Declared [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Dividends payable, per share	$ 0.10
Subsequent Event [Member] | Installment Three [Member]
Subsequent Event [Line Items]
Dividends payable, record date	Aug. 10, 2015
Dividends payable, declaration date	Jul. 23, 2015
Dividends payable, payable date	Aug. 24, 2015
Subsequent Event [Member] | American Airlines, Inc. [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued					0.6
Common stock shares withheld or sold related to tax obligations					0.1
Subsequent Event [Member] | American Airlines, Inc. [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Shares released from restriction and issued					0.6