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COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Billions	3 Months Ended
	Sep. 30, 2025 USD ($) employee
Commitments and Contingencies Disclosure [Abstract]
Future aircraft purchase commitments | $	$ 16.0
Number of employees covers under collective bargaining agreement | employee	500

X

- Definition

Number Of Employees Covers Under Collective Bargaining Agreements

+ References

No definition available.

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- References

No definition available.

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X

- Definition

Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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