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COMMITMENTS (Tables)
 3 Months Ended
Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases and Unrecorded Unconditional Purchase Obligtaions
Future minimum contractual payments for commitments as of March 31, 2024 (in millions):
Aircraft-Related Commitments(a)
Capacity Purchase Agreements and Other Obligations (b)
Remainder of 2024$1,164 $177 
2025830 230 
20261,634 223 
2027601 220 
2028151 223 
Thereafter717 515 
Total$5,097 $1,588 
(a)Includes contractual commitments for aircraft, engines, and aircraft maintenance, and incorporates the impact of expected delays for certain B737 aircraft as communicated by Boeing. Option deliveries are excluded from minimum commitments until exercise.
(b)Primarily comprised of non-lease costs associated with capacity purchase agreements, as well as other various sponsorship agreements and investment commitments.
Schedule of Future Aircraft Delivery
Firm OrdersOptions and Other RightsTotal
Aircraft Type2024-20272025-20302024-2030
B73780105185
E1757714
   Total87112199