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v3.19.2

Leases - Narrative (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2019 USD ($) aircraft
Lessee, Lease, Description [Line Items] |
Additional leases that have not yet commenced | $ | $ 570
Maximum |
Lessee, Lease, Description [Line Items] |
Lease terms of additional leases that have not yet commenced (up to) | 34 years
Mainline Aircraft |
Lessee, Lease, Description [Line Items] |
Number of aircraft subject to operating leases | 121
Number of aircraft subject to finance leases | 26
Mainline Aircraft | Minimum |
Lessee, Lease, Description [Line Items] |
Initial term of operating leases | 1 month
Mainline Aircraft | Maximum |
Lessee, Lease, Description [Line Items] |
Initial term of operating leases | 10 years
Regional Aircraft |
Lessee, Lease, Description [Line Items] |
Number of aircraft subject to operating leases | 339
Number of aircraft subject to finance leases | 47
Non-Aircraft | Minimum |
Lessee, Lease, Description [Line Items] |
Initial term of operating leases | 1 month
Non-Aircraft | Maximum |
Lessee, Lease, Description [Line Items] |
Initial term of operating leases | 34 years

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- Definition Lessee, Operating And Finance Lease, Not Yet Commenced, Amount + References No definition available. + Details
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- Definition Lessee, Operating And Finance Lease, Not Yet Commenced, Term Of Contract + References No definition available. + Details
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- Definition Lessee, Operating And Finance Leases, Term Of Contract + References No definition available. + Details
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- Definition Number Of Aircraft Subject To Finance Leases + References No definition available. + Details
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- Definition Number Of Aircraft Subject To Operating Leases + 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. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |