AIRPORT REDEVELOPMENT	12 Months Ended
AIRPORT REDEVELOPMENT	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
AIRPORT REDEVELOPMENT	AIRPORT REDEVELOPMENT New York-JFK Airport We are enhancing and expanding our facilities at Terminal 4 of JFK to strengthen our competitive position and offer a premium travel experience for customers in New York City. Terminal 4 is operated by JFK International Air Terminal LLC ("IAT"), a private party, under its lease with the Port Authority of New York and New Jersey ("Port Authority"). We have a long-term agreement with IAT to sublease space in Terminal 4 through 2043 ("Sublease"). In 2021, the Port Authority approved plans to renovate and expand Terminal 4 in order to facilitate Delta's relocation from Terminal 2 and consolidation of its operations into Terminal 4. The project will add 10 new gates and other complementary facilities, including an additional Delta Sky Club and a new Delta One lounge. The project is estimated to cost approximately $1.6 billion and will be funded primarily with bonds issued in 2022 by the New York Transportation Development Corporation ("NYTDC") for which our landlord, IAT, is the obligor. The majority of project costs are being used to expand or modify Delta's leased premises. Construction started in late 2021 and Delta's portion of the project is estimated to be complete by early 2024. Based on our assessment of the project, we concluded that we do not control the underlying assets being constructed, and therefore, we do not have the project asset or related obligation recorded on our balance sheet. In 2022, we amended our Sublease to provide for the expansion project, including the adjustment of our subleased space and rentals. We have recognized a ROU asset and lease liability representing the fixed component of the lease payments for this facility and as the majority of the project either expands or modifies Delta’s leased premises, our lease liability will increase upon completion. As of December 31, 2022, our lease liability related to this Sublease was $2.3 billion. See Note 7, "Leases" for more information on our ROU assets and lease liabilities. Equity Investment. We have an equity method investment in JFK IAT Member LLC, which owns IAT. The Sublease requires us to pay certain fixed management fees. We determined the investment is a variable interest entity and assessed whether we have a controlling financial interest in IAT. Our rights under the Sublease, with respect to management of Terminal 4, are consistent with rights granted to an anchor tenant under a standard airport lease. Accordingly, we do not consolidate this entity in our Consolidated Financial Statements. See Note 4, "Investments" for additional information on our equity investments. Los Angeles International Airport ("LAX") As part of the terminal redevelopment project at LAX, we are modernizing, upgrading, and providing post-security connection to Terminals 2 and 3. We announced this project and executed a modified lease agreement during 2016 with the City of Los Angeles (the "City"), which owns and operates LAX. This project includes a new centralized ticketing and arrival hall, a new security checkpoint, core infrastructure to support the City's planned airport people mover, ramp improvements and a post-security connector to the north side of the Tom Bradley International Terminal. The project is expected to cost approximately $2.4 billion. A substantial majority of the project costs are being funded through the Regional Airports Improvement Corporation ("RAIC"), a California public benefit corporation, using a revolving credit facility provided by a group of lenders. The credit facility was executed in 2017 and we have guaranteed the obligations of the RAIC under the credit facility. The revolving credit facility agreement was most recently amended in January 2023, decreasing the revolver capacity from $800 million to $700 million. Loans made under the credit facility are being repaid with the proceeds from the City’s purchase of completed project assets. Under the lease agreement and subsequent project component approvals by the City's Board of Airport Commissioners, the City has appropriated to date approximately $1.8 billion to purchase completed project assets, representing the maximum allowable reimbursement by the City. Costs incurred in excess of the $1.8 billion maximum will not be reimbursed by the City. We currently expect our net project costs to be approximately $600 million, of which approximately $350 million has been reflected as investing activities in our cash flows statement since the project started in 2017. Based on our assessment of the project, we concluded that we do not control the underlying assets being constructed, and therefore, we do not have the project asset or related obligation recorded on our balance sheet. Given reduced passenger volumes resulting from the COVID-19 pandemic, we accelerated the construction schedule for this project in 2020. Additionally, we enhanced the project’s scope to include a more customer-friendly design of Terminal 3, an expanded Delta Sky Club and baggage system upgrades designed to increase the terminals’ operational efficiency going forward. In 2022, we opened a new consolidated headhouse for both terminals, which includes ticketing, security, baggage claim and a new Delta Sky Club lounge and have a total of 11 of 14 planned new gates now open in Terminal 3. Construction is expected to be completed in 2023. Due to the variable nature of lease payments in our agreement with the City, we have not recognized a ROU asset and lease liability on our balance sheet. See Note 7, "Leases" for more information on our ROU assets and lease liabilities. New York-LaGuardia Airport As part of the terminal redevelopment project at LaGuardia Airport, we are partnering with the Port Authority to replace Terminals C and D with a new state-of-the-art terminal facility consisting of 37 gates across four concourses connected to a central headhouse. The terminal will feature a new, larger Delta Sky Club, wider concourses, more gate seating and nearly double the amount of concessions space than the existing terminals. The facility will also offer direct access between the parking garage and terminal and improved roadways and drop-off/pick-up areas. Construction is underway and is being phased to limit passenger inconvenience. Due to an acceleration effort that commenced in 2020, completion is expected by 2025. In 2019, we opened Concourse G, the first of four new concourses, housing seven of the 37 new gates. In 2022, we achieved a significant milestone by opening the headhouse (including the Delta Sky Club), the terminal roadways and Concourse E - the second of four new concourses to be built. Additionally, we opened four of 12 planned new gates on Concourse F. In connection with the redevelopment, during 2017, we entered into an amended and restated terminal lease with the Port Authority with a term through 2050. Pursuant to the lease agreement, as amended to date, we will (1) fund (through debt issuance and existing cash) and undertake the design, management and construction of the terminal and certain off-premises supporting facilities, (2) receive a Port Authority contribution of approximately $500 million to facilitate construction of the terminal and other supporting infrastructure, (3) be responsible for all operations and maintenance during the term of the lease and (4) have preferential rights to all gates in the terminal subject to Port Authority requirements with respect to accommodation of designated carriers. The project is expected to cost $4.3 billion. We currently expect our net project cost to be approximately $3.8 billion and we bear the risks of project construction, including any potential cost over-runs. We entered into loan agreements to fund a portion of the construction, which are recorded on our balance sheet as debt with the proceeds reflected as restricted cash. Using funding primarily provided by these arrangements, we spent approximately $650 million, $950 million and $600 million during 2022, 2021, and 2020 respectively, bringing the total amount spent on the project to date to approximately $3.2 billion. Based on our assessment of the project, we concluded that we do not control the underlying assets being constructed. Costs incurred by Delta are accounted for as leasehold improvements recorded in property and equipment, net on our balance sheets. See Note 6, "Debt," for additional information on the debt (NYTDC Special Facilities Revenue Bonds) related to this redevelopment project.