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Share Based Compensation - Additional Information (Detail)
12 Months Ended
Dec. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation costs $ 102,000,000 $ 274,000,000 $ 381,000,000  
Common stock shares withheld or sold related to tax obligations | shares 1,400,000 7,000,000 1,700,000  
Payment of certain tax withholding obligations associated with employee equity awards $ 56,000,000 $ 306,000,000 $ 62,000,000  
Special Items, Net [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation costs   198,000,000 224,000,000  
American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation costs 102,000,000 274,000,000 381,000,000  
American Airlines, Inc. [Member] | Special Items, Net [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation costs   198,000,000 224,000,000  
CRSU [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total cash paid for cash-settled awards exercised or vested 1,000,000 10,000,000 12,000,000  
CRSU [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total cash paid for cash-settled awards exercised or vested $ 1,000,000 10,000,000 12,000,000  
Restricted Stock Unit (RSU) Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Total unrecognized compensation costs $ 116,000,000      
Cost expected to be recognized over a weighted average period 1 year      
Total fair value of RSUs vested $ 107,000,000 750,000,000 154,000,000  
Restricted Stock Unit (RSU) Awards [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Total unrecognized compensation costs $ 116,000,000      
Cost expected to be recognized over a weighted average period 1 year      
Total fair value of RSUs vested $ 107,000,000 750,000,000 154,000,000  
Stock Options and Stock Appreciation Rights [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Unrecognized compensation costs for stock options $ 0      
Award exchange ratio in connection with the Merger 1      
Total intrinsic value of stock options and SARs exercised $ 49,000,000 102,000,000 105,000,000  
Stock Options and Stock Appreciation Rights [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Unrecognized compensation costs for stock options $ 0      
Award exchange ratio in connection with the Merger 1      
Total intrinsic value of stock options and SARs exercised $ 49,000,000 102,000,000 105,000,000  
Stock Options and Stock Appreciation Rights [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of contractual expiration period for stock-based awards 7 years      
Stock Options and Stock Appreciation Rights [Member] | Minimum [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of contractual expiration period for stock-based awards 7 years      
Stock Options and Stock Appreciation Rights [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of contractual expiration period for stock-based awards 10 years      
Stock Options and Stock Appreciation Rights [Member] | Maximum [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Range of contractual expiration period for stock-based awards 10 years      
Cash-Settled Stock Appreciation Rights (CSARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total cash paid for cash-settled awards exercised or vested $ 18,000,000 31,000,000 42,000,000  
Weighted average fair value per share of outstanding awards (in dollars per share) | $ / shares $ 38.57      
Liability for cash-settled awards $ 13,000,000      
Cash-Settled Stock Appreciation Rights (CSARs) [Member] | American Airlines, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total cash paid for cash-settled awards exercised or vested $ 18,000,000 $ 31,000,000 $ 42,000,000  
Weighted average fair value per share of outstanding awards (in dollars per share) | $ / shares $ 38.57      
Liability for cash-settled awards $ 13,000,000      
AAG Incentive Award Plan 2013 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total shares available for grant under 2013 Plan | shares       40,000,000