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FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2024

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)			June 30, 2024			Level 1			Level 2			Level 3
Cash equivalents			$	2,840		$	2,840		$	—		$	—
Restricted cash equivalents			397			397			—			—
Short-term investments
U.S. Government securities			100			—			100			—
Corporate obligations			10			—			10			—
Other fixed income securities			14			—			14			—
Long-term investments and related			2,445			2,188			143			114
Fuel hedge contracts			(23)			—			(23)			—

(in millions)			December 31, 2023			Level 1			Level 2			Level 3
Cash equivalents			$	1,545		$	1,545		$	—		$	—
Restricted cash equivalents			653			653			—			—
Short-term investments
U.S. Government securities			859			204			655			—
Corporate obligations			218			—			218			—
Other fixed income securities			50			—			50			—
Long-term investments and related			2,867			2,614			134			119
Fuel hedge contracts			5			—			5			—

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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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