Multiemployer Plan, Number Of Employee Groups

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- Definition

Purchase Commitments, Number Of Aircraft To Be Outfitted With Engines

+ References

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- Definition

Estimated amount of loss resulting from an adverse tax position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Number of units of goods that must be purchased within the specified time period of the agreement to avoid penalties or unfavorable effects on pricing, among other adverse consequences.

+ References

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- Definition

Percentage of entity's employees covered by collective-bargaining arrangement (CBA) to all entity's employees in multiemployer pension plan determined to be individually significant.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480576/715-80-50-5

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- Definition

The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480341/340-10-S99-3

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(24))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Commitments and Contingencies - Additional Information (Details) $ in Millions	1 Months Ended		12 Months Ended
	Jul. 31, 2025 aircraft	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) aircraft employeeGroup	Dec. 31, 2024 USD ($)
Long-term Purchase Commitment [Line Items]
Number of aircraft to be outfitted with engines \| aircraft	91
Amount awarded from other party				$ 40
Number of union-represented employee groups \| employeeGroup			7
Amount of employees represented by unions			86.00%
Accrued liabilities for health care claims			$ 7	6
Internal Revenue Service (IRS)
Long-term Purchase Commitment [Line Items]
Preliminary assessment of estimated tax liability		$ 133
Other Assets
Long-term Purchase Commitment [Line Items]
Preproduction costs related to long-term supply arrangements, costs capitalized			81	95
Other Noncurrent Liabilities
Long-term Purchase Commitment [Line Items]
Preproduction costs related to long-term supply arrangements, costs capitalized			$ 52	$ 1
Total Aircraft
Long-term Purchase Commitment [Line Items]
Number of aircraft agreed to purchase \| aircraft			168
Total Aircraft \| A320neo
Long-term Purchase Commitment [Line Items]
Number of aircraft agreed to purchase \| aircraft			20
Total Aircraft \| A321neo
Long-term Purchase Commitment [Line Items]
Number of aircraft agreed to purchase \| aircraft			148