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Commitments and Contingencies (Details) $ in Millions	Jun. 30, 2020 USD ($) aircraft
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	$ 400
Unrecorded Unconditional Purchase Obligation, Due within Two Years	1,100
Unrecorded Unconditional Purchase Obligation, Due within Three Years	900
Unrecorded Unconditional Purchase Obligation, Due within Four Years	1,700
Unrecorded Unconditional Purchase Obligation, Due within Five Years	1,800
Unrecorded Unconditional Purchase Obligation, Due after Five Years	2,000
Restricted assets pledged under letter of credit	25
Restricted Assets Pledged Related To Workers Compensation Insurance Policies And Other Business Partner Agreements	$ 25
A-321 Neo [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligations Disclosure | aircraft	76
A220-300 [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligations Disclosure | aircraft	70

X

- 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.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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- Definition

Unrecorded Unconditional Purchase Obligations Disclosure.

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid after fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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X

- Definition

Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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X

- Definition

Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in remainder of current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment.

+ 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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- Details

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