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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Summary of flight equipment commitments As of March 31, 2023, our committed expenditures for aircraft and related flight equipment, including estimated amounts for contractual price escalations and predelivery deposits were as set forth in the table below (in billions):
Flight equipment commitments(1)
YearTotal
Remainder of 2023$1.5 
20242.2 
20251.7 
20261.3 
20271.0 
Total$7.7 
(1)The timing of these commitments is based on our contractual agreements and may be subject to change based on modifications to contractual agreements or changes in the delivery schedules.
Our firm aircraft orders included the following aircraft at March 31, 2023:
YearAirbus A321neoAirbus A220Total
202311 17 28 
202413 30 43 
202511 24 35 
202612 14 26 
202714 — 14 
Total61 85 146