Fair Value [Line Items]

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Publisher FASB
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-SubTopic 10
-Section 50
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
-Paragraph 25
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
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- Definition

Number of aircraft operated by the carrier.

+ References

No definition available.

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Investments and Fair Value Measurements - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) aircraft	Dec. 29, 2021
Fair Value [Line Items]
Investments in securities accounted for under the equity method	$ 171
Champlain
Fair Value [Line Items]
Number of regional aircraft \| aircraft	75
Republic
Fair Value [Line Items]
Number of regional aircraft \| aircraft	66
Champlain
Fair Value [Line Items]
Ownership stake	40.00%
Republic
Fair Value [Line Items]
Ownership stake	19.00%
ManaAir
Fair Value [Line Items]
Ownership stake	49.90%
AVG
Fair Value [Line Items]
Ownership stake		16.40%
Carrying value of other investment	$ 164
Fulcrum BioEnergy, Inc., Boom, Alder Fuels LLC, Heart Aerospace Incorporated and ZeroAvia, Inc.
Fair Value [Line Items]
Carrying value of other investment	$ 84