LEASES - Narratives (Details) $ in Millions |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2022
USD ($)
aircraft
|
Mar. 31, 2021
USD ($)
|
|
| Lessee, Lease, Description [Line Items] | ||
| Number of lease aircrafts (aircraft) | 317 | |
| Number of lease aircrafts, finance (aircraft) | 21 | |
| Number of lease aircrafts, operating (aircraft) | 18 | |
| Number of lease aircrafts, short-term (aircraft) | 278 | |
| Finance Lease, Impairment Loss | $ | $ 0 | $ 0 |
| Operating Lease, Impairment Loss | $ | 0 | $ 0 |
| Lessee, Finance Lease and Operating Lease, Lease Not Yet Commenced, Amount | $ | $ 347 | |
| Minimum | ||
| Lessee, Lease, Description [Line Items] | ||
| Remaining lease term | 1 month | |
| Maximum | ||
| Lessee, Lease, Description [Line Items] | ||
| Remaining lease term | 138 years | |
| X | ||||||||||
- Definition Lessee, Finance Lease and Operating Lease, Lease Not Yet Commenced, Amount No definition available.
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| X | ||||||||||
- Definition Lessee Lease Term No definition available.
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| X | ||||||||||
- Definition Number of Leased Aircrafts No definition available.
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| X | ||||||||||
- Definition Number of Leased Aircrafts, Finance Lease No definition available.
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| X | ||||||||||
- Definition Number of Leased Aircrafts, Operating Lease No definition available.
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| X | ||||||||||
- Definition Number of Leased Aircrafts, Short-term No definition available.
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| X | ||||||||||
- Definition Amount of impairment loss from right-of-use asset from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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. No definition available.
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| X | ||||||||||
- Definition Amount of loss from impairment of right-of-use asset from operating lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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