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LEASES - Additional Information (Details) $ in Millions |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended
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Dec. 01, 2023 USD ($) | Oct. 01, 2023 USD ($) | Jun. 01, 2023 USD ($) | May 01, 2023 USD ($) | Mar. 01, 2023 USD ($) | May 17, 2022 period | Apr. 29, 2022 USD ($) period | Sep. 28, 2021 period | Feb. 14, 2020 period | Nov. 15, 2019 period | Mar. 31, 2023 | Feb. 28, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2023 debt_instrument
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of letters of credit | debt_instrument |  |  |  |  |  |  |  |  |  |  |  |  |  | 1
Discontinued Operations, Disposed of by Sale | The Mirage |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in annual rent payment |  |  |  |  |  |  |  |  |  |  |  |  | $ 90 |
Right-of-use assets derecognized upon lease modification |  |  |  |  |  |  |  |  |  |  |  | $ 1,300 |  |
Lease liabilities derecognized upon lease modification |  |  |  |  |  |  |  |  |  |  |  | 1,300 |  |
Discontinued Operations, Disposed of by Sale | Gold Strike Tunica |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Right-of-use assets derecognized upon lease modification |  |  |  |  |  |  |  |  |  |  |  | 507 |  |
Lease liabilities derecognized upon lease modification |  |  |  |  |  |  |  |  |  |  |  | 516 |  |
Disposal Group, Held-for-Sale, Not Discontinued Operations | Gold Strike Tunica |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease in annual rent payment |  |  |  |  |  |  |  |  |  |  |  | 40 |  |
Bellagio BREIT Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (in percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00%
VICI Lease and Ground Subleases |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease agreement, initial lease term (in years) |  |  |  |  |  |  | 25 years |  |  |  |  |  |  |
Number of renewal periods, exercisable at option | period |  |  |  |  |  |  | 3 |  |  |  |  |  |  |
Annual rent escalator from year one through year ten |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |
Annual rent escalator from year one through year fifteen |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |
Annual rent escalator after year ten |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |
Annual rent escalator cap after year ten |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |
Lessee, operating lease, annual rent expense |  |  |  | $ 745 |  |  | $ 860 |  |  |  |  | $ 730 | $ 770 |
Mandalay Bay and MGM Grand Las Vegas |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year
Lease agreement, initial lease term (in years) |  |  |  |  |  |  |  |  | 30 years |  |  |  |  |
Number of renewal periods, exercisable at option | period |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |
Increase (decrease) in annual rent expense |  |  |  |  | $ 310 |  |  |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |
Annual rent escalator from year one through year fifteen |  |  |  |  |  |  |  |  | 2.00% |  | 2.00% |  |  |
Annual rent escalator after year fifteen |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Annual rent escalator cap after year fifteen |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |
Aria and Vdara |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year
Lease agreement, initial lease term (in years) |  |  |  |  |  |  |  | 30 years |  |  |  |  |  |
Number of renewal periods, exercisable at option | period |  |  |  |  |  |  |  | 3 |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |
Increase (decrease) in annual rent expense |  | $ 224 |  |  |  |  |  |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Annual rent escalator after year fifteen |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  |
Annual rent escalator cap after year fifteen |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |
Fixed rent escalator for fifteen years |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |
Cosmopolitan of Las Vegas |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year
Lease agreement, initial lease term (in years) |  |  |  |  |  | 30 years |  |  |  |  |  |  |  |
Number of renewal periods, exercisable at option | period |  |  |  |  |  | 3 |  |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  | 15 years |  |  |  |  |  |  |  |
Lease agreement renewal period |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |
Annual rent escalator after year fifteen |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |
Annual rent escalator cap after year fifteen |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |
Fixed rent escalator for fifteen years |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |
Lessee, operating lease, annual rent expense |  |  | $ 204 |  |  |  |  |  |  |  |  |  |  |
Bellagio Lease |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years
Lease agreement, initial lease term (in years) |  |  |  |  |  |  |  |  |  | 30 years |  |  |  |
Number of renewal periods, exercisable at option | period |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Lease agreement renewal period (in years) |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
Annual rent escalator from year one through year ten | 2.00% |  |  |  |  |  |  |  |  | 2.00% |  |  |  |
Lease agreement renewal period |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
Annual rent escalator from year eleven through year twenty |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |
Annual rent escalator cap from year eleven through year twenty |  |  |  |  |  |  |  |  |  | 3.00% |  |  |  |
Annual rent escalator after year twenty |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |
Increase (decrease) in annual rent expense | $ 265 |  |  |  |  |  |  |  |  |  |  |  |  |
M G M Cotai |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease agreement, initial lease term (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  | 25 years
Lease agreement renewal period |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years
MGM Macau |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease agreement, initial lease term (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  | 25 years
Lease agreement renewal period |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years
Minimum | VICI Lease and Ground Subleases |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 months
Maximum | VICI Lease and Ground Subleases |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of covenant |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year

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