Commitments and Contingencies (Details) $ in Millions	1 Months Ended
Apr. 30, 2021 USD ($) airport	Jun. 30, 2022 USD ($) aircraft
Unrecorded Unconditional Purchase Obligation [Line Items]
Remainder of fiscal year 2022		$ 571
2023		1,600
2024		2,000
2025		1,700
2026		1,400
Thereafter		$ 1,000
Aircraft expected for delivery \| aircraft		9
Restricted assets pledged under letter of credit		$ 41
Restricted assets pledged related to workers compensation insurance policies and other business partner agreements		$ 34
Number of northeast airports \| airport	4
A-321 Neo
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded unconditional purchase obligations disclosure \| aircraft		64
A220-300
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded unconditional purchase obligations disclosure \| aircraft		89
One-time bonus payment	$ 32
Base pay increase		3.00%

Collective Bargaining Agreement, Mediation, Base Pay Increase, Percentage

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- Definition

Collective Bargaining Agreement, Mediation, One-Time Bonus Payment

+ References

No definition available.

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- Definition

Number Of Aircraft Expected To Receive In Fiscal Year

+ References

No definition available.

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- Definition

Number Of Northeast Airports

+ References

No definition available.

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- Definition

Restricted assets pledged under standby letters of credit related to workers compensation insurance policies and other agreements requiring issuance of letters of credit.

+ References

No definition available.

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- Definition

Restricted assets pledged under standby letters of credit related to lease agreements.

+ References

No definition available.

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- Definition

Unrecorded Unconditional Purchase Obligation, after Year Four

+ References

No definition available.

+ Details

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- Definition

Unrecorded Unconditional Purchase Obligations Disclosure.

+ References

No definition available.

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- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308

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- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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- Definition

Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in remainder of current fiscal year.

+ References

No definition available.

+ Details

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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

No definition available.

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