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FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2023

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, 2023			Level 1			Level 2			Level 3
Cash equivalents			$	1,339		$	1,339		$	—		$	—
Restricted cash equivalents			156			156			—			—
Short-term investments
U.S. Government securities			1,498			205			1,293			—
Corporate obligations			1,643			—			1,643			—
Asset-backed securities			120			—			120			—
Other fixed income securities			107			—			107			—
Long-term investments			1,701			1,536			39			126
Fuel hedge contracts			(9)			—			(9)			—

(in millions)			December 31, 2022			Level 1			Level 2			Level 3
Cash equivalents			$	2,021		$	2,021		$	—		$	—
Restricted cash equivalents			206			206			—			—
Short-term investments
U.S. Government securities			1,587			122			1,465			—
Corporate obligations			1,614			—			1,614			—
Other fixed income securities			67			—			67			—
Long-term investments			1,450			1,305			38			107
Fuel hedge contracts			(47)			—			(47)			—

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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/2003/role/disclosureRef
-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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-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

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