v3.24.0.1
Share-Based Compensation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
May 16, 2023
May 21, 2015
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2015
May 14, 2020
Jan. 01, 2012
May 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Unrecognized stock-based compensation expense     $ 43            
Number of years expected to recognize stock-based compensation     23 months            
Share-based payment arrangement, expense     $ 39 $ 30 $ 28        
Share-based compensation arrangement by Share-based payment award, number of shares authorized (in shares)             10,500,000    
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares)   7,500,000              
Shares issued following the director's departure from the board     6 months 1 day            
CSPP offering period     6 months            
Outstanding voting securities     50.00%            
Exercise price of purchasing rights as percentage of fair market value per share in case of acquisition     85.00%            
Incentive Compensation Plan Two Thousand Eleven                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based compensation arrangement by Share-based payment award, number of shares authorized (in shares)               15,000,000  
Restricted Stock Unit Activity Under 2020 Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
unvested restricted stock units (in shares)     6,000,000 3,000,000          
Granted (in shares)     5,000,000            
Crewmember Stock Purchase Plan 2011                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based compensation arrangement by Share-based payment award, number of shares authorized (in shares)                 8,000,000
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares)           15,000,000      
Employees contribution towards purchase of common stock     10.00%            
Purchase price discount based upon the stock price     15.00%            
Employee stock purchase plan (ESPP), expense     $ 9 $ 9 $ 9        
Stock issued under crewmember stock purchase plan (in shares)     11,200,000 6,400,000 3,400,000        
Share-based compensation arrangement by share-based payment award, per share weighted average price of shares purchased (in dollars per share)     $ 4.67 $ 8.07 $ 13.93        
JetBlue Airways Corporation 2020 Crewmember Stock Purchase Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based compensation arrangement by Share-based payment award, number of shares authorized (in shares) 27,500,000   17,500,000            
Share-based compensation arrangement by share-based payment award, number of additional shares authorized (in shares) 10,000,000                
Restricted Stock Units (RSUs)                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
unvested restricted stock units (in shares)     7,800,000            
Restricted Stock Units (RSUs) | Restricted Stock Unit Activity Under 2020 Plan                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based compensation aggregate intrinsic value, vested     $ 8            
Deferred Stock Units (DSU's)                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Minimum vesting period     1 year            
Maximum vesting period     3 years            
Performance Shares                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Granted (in shares)     1,800,000 0