XML 156 R77.htm IDEA: XBRL DOCUMENT v3.25.0.1
FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Assets    
Treasury bills $ 1,094 $ 1,983
Fuel derivatives:    
Equity securities 367 280
Total assets 9,222 11,977
Options Held    
Fuel derivatives:    
Option contracts 130 223
Certificates of deposit    
Assets    
Investments 122 203
Cash Equivalents    
Assets    
Cash equivalents 7,209 9,032
Commercial paper    
Assets    
Cash equivalents   135
Certificates of deposit    
Assets    
Cash equivalents   21
Time deposits    
Assets    
Cash equivalents 300 100
Quoted prices in active markets for identical assets (Level 1)    
Assets    
Treasury bills 1,094 1,983
Fuel derivatives:    
Equity securities 367 280
Total assets 8,670 11,295
Quoted prices in active markets for identical assets (Level 1) | Options Held    
Fuel derivatives:    
Option contracts 0 0
Quoted prices in active markets for identical assets (Level 1) | Certificates of deposit    
Assets    
Investments 0 0
Quoted prices in active markets for identical assets (Level 1) | Cash Equivalents    
Assets    
Cash equivalents 7,209 9,032
Quoted prices in active markets for identical assets (Level 1) | Commercial paper    
Assets    
Cash equivalents   0
Quoted prices in active markets for identical assets (Level 1) | Certificates of deposit    
Assets    
Cash equivalents   0
Quoted prices in active markets for identical assets (Level 1) | Time deposits    
Assets    
Cash equivalents 0 0
Significant other observable inputs (Level 2)    
Assets    
Treasury bills 0 0
Fuel derivatives:    
Equity securities 0 0
Total assets 422 459
Significant other observable inputs (Level 2) | Options Held    
Fuel derivatives:    
Option contracts 0 0
Significant other observable inputs (Level 2) | Certificates of deposit    
Assets    
Investments 122 203
Significant other observable inputs (Level 2) | Cash Equivalents    
Assets    
Cash equivalents 0 0
Significant other observable inputs (Level 2) | Commercial paper    
Assets    
Cash equivalents   135
Significant other observable inputs (Level 2) | Certificates of deposit    
Assets    
Cash equivalents   21
Significant other observable inputs (Level 2) | Time deposits    
Assets    
Cash equivalents 300 100
Significant unobservable inputs (Level 3)    
Assets    
Treasury bills 0 0
Fuel derivatives:    
Equity securities 0 0
Total assets 130 223
Significant unobservable inputs (Level 3) | Options Held    
Fuel derivatives:    
Option contracts 130 223
Significant unobservable inputs (Level 3) | Certificates of deposit    
Assets    
Investments 0 0
Significant unobservable inputs (Level 3) | Cash Equivalents    
Assets    
Cash equivalents 0 0
Significant unobservable inputs (Level 3) | Commercial paper    
Assets    
Cash equivalents   0
Significant unobservable inputs (Level 3) | Certificates of deposit    
Assets    
Cash equivalents   0
Significant unobservable inputs (Level 3) | Time deposits    
Assets    
Cash equivalents $ 0 $ 0