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FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Assets/(Liabilities) Measured at Fair Value on a Recurring Basis

Assets/(Liabilities) Measured at Fair Value on a Recurring Basis

(in millions)			March 31, 2025			Level 1			Level 2			Level 3
Cash equivalents			$	2,343		$	2,343		$	—		$	—
Restricted cash equivalents			230			230			—			—
Long-term investments and related			2,340			2,049			171			120
Fuel hedge contracts			(39)			—			(39)			—

(in millions)			December 31, 2024			Level 1			Level 2			Level 3
Cash equivalents			$	1,619		$	1,619		$	—		$	—
Restricted cash equivalents			351			351			—			—
Long-term investments and related			2,372			2,085			160			127
Fuel hedge contracts			(17)			—			(17)			—

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- References

No definition available.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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