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AIRPORT REDEVELOPMENT (Details) | 12 Months Ended | 84 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) gate | Dec. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2020 concourse gate | Dec. 31, 2018 USD ($)
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Operating lease assets | $ 7,004,000,000 | $ 7,036,000,000 |  | $ 7,004,000,000 |  |  |
Financial Guarantee | Revolving Credit Facility |  |  |  |  |  |  |
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Aggregate commitments guaranteed |  |  |  |  | $ 626,000,000 |  |
JFK Terminal Redevelopment Project |  |  |  |  |  |  |
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Number of new gates | gate |  |  | 10 |  |  |  |
Total expected project costs |  | 1,600,000,000 |  |  |  |  |
LAX Redevelopment Project |  |  |  |  |  |  |
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Total expected project costs | 2,400,000,000 |  |  | 2,400,000,000 |  |  |
Expected net projects costs | 600,000,000 |  |  | 600,000,000 |  |  |
Project costs reflected as investing cash flows |  |  |  | 350,000,000 |  |  |
Project costs reflected as operating cash flows |  |  |  | 200,000,000 |  |  |
Operating lease assets | 200,000,000 |  |  | 200,000,000 |  |  |
LAX Redevelopment Project | City of Los Angeles |  |  |  |  |  |  |
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Total appropriation to date by city | 1,800,000,000 |  |  | 1,800,000,000 |  |  |
Maximum reimbursement by city | 1,800,000,000 |  |  | 1,800,000,000 |  |  |
LaGuardia Airport Redevelopment Project |  |  |  |  |  |  |
Agreements and Obligations [Line Items] |  |  |  |  |  |  |
Total expected project costs | 4,300,000,000 |  |  | 4,300,000,000 |  |  |
Expected net projects costs | 3,800,000,000 |  |  | 3,800,000,000 |  |  |
Number of new gates planned | gate |  |  |  |  |  | 37 |
Number of concourses for gates | concourse |  |  |  |  |  | 4 |
Port Authority contribution to redevelopment project |  |  |  |  |  |  | $ 500,000,000
Amount spent on project costs | $ 500,000,000 | $ 650,000,000 | $ 950,000,000 | $ 3,700,000,000 |  |  |

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