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COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Schedule of aircraft purchase commitments
Our future aircraft purchase commitments totaled approximately $19.0 billion at December 31, 2022:

Aircraft purchase commitments(1)
(in millions)Total
2023$2,610 
20244,440 
20254,330 
20263,800 
20272,570 
Thereafter1,210 
Total$18,960 
(1)The timing of these commitments is based on our contractual agreements with the aircraft manufacturers and may be subject to change based on modifications to those agreements or changes in delivery schedules.
Our future aircraft purchase commitments included the following aircraft at December 31, 2022:

Aircraft purchase commitments by fleet type
Fleet TypePurchase Commitments
A220-30060 
A321-200neo134 
A330-900neo18 
A350-90016 
B-737-10100 
Total328 
Schedule of contract carrier minimum obligations The obligations set forth in the table contemplate minimum levels of flying by the regional carriers under the respective agreements and also reflect assumptions regarding certain costs associated with the minimum levels of flying such as the cost of fuel, labor, maintenance, insurance, catering, property tax and landing fees. Accordingly, our actual payments under these agreements could differ materially from the minimum fixed obligations set forth in the table below.
Contract carrier minimum obligations
(in millions)Amount
2023$1,590 
20241,560 
20251,610 
20261,590 
20271,560 
Thereafter2,690 
Total$10,600 
Schedule of domestic airline employees represented by collective bargaining agreements by group
Domestic airline employees represented by collective bargaining agreements by group
Employee GroupApproximate Number of
Employees Represented		UnionDate on which Collective
Bargaining Agreement
Becomes Amendable
Delta Pilots15,040 ALPADecember 31, 2019
Delta Flight Superintendents (Dispatchers)
450 PAFCANovember 1, 2024
Endeavor Pilots1,750 ALPAJanuary 1, 2029
Endeavor Flight Attendants
1,800 AFAMarch 31, 2027