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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

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, 2019			Level 1			Level 2
Cash equivalents	$	1,508		$	1,508		$	—
Restricted cash equivalents	1,075			1,075			—
Long-term investments	1,174			970			204
Hedge derivatives, net
Fuel hedge contracts	7			1			6
Interest rate contracts	24			—			24
Foreign currency exchange contracts	8			—			8

(in millions)	December 31, 2018			Level 1			Level 2
Cash equivalents	$	1,222		$	1,222		$	—
Restricted cash equivalents	1,183			1,183			—
Short-term investments
U.S. government and agency securities	50			45			5
Asset- and mortgage-backed securities	36			—			36
Corporate obligations	90			—			90
Other fixed income securities	27			—			27
Long-term investments	1,084			880			204
Hedge derivatives, net
Fuel hedge contracts	15			20			(5		)
Interest rate contracts	1			—			1
Foreign currency exchange contracts	(3		)	—			(3		)

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258

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