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COMMITMENTS AND CONTINGENCIES - Aircraft-Related Commitments (Details) | Mar. 31, 2026 aircraft
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Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 189
Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 71
B737 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 174
B737 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 71
B787 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 12
B787 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 0
E175 | Firm Orders |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 3
E175 | Options and Other Rights |
Unrecorded Unconditional Purchase Obligation [Line Items] |
Total | 0

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