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v3.25.3

LONG-TERM DEBT - Additional Information (Details) ¥ in Billions, $ in Billions | 1 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 29, 2025 JPY (¥) | Jun. 30, 2025 USD ($) | Oct. 31, 2024 USD ($) | May 31, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 HKD ($) | Dec. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Apr. 30, 2024 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Repayment of long-term debt |  |  |  |  | $ 500,000,000 | $ 1,500,000,000 |  |  |  |
Long-term debt, fair value |  |  |  |  | $ 6,200,000,000 |  |  | $ 6,300,000,000 |  |
6.125% senior notes, due 2029 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  |  | 6.125% |  | 6.125% |  |  |
6.125% senior notes, due 2029 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  | $ 850,000,000 |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  |  |  | 6.125% |  |  |  |
Senior Notes 5.75% Due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  | 5.75% |  |  |  |  |  |  |
Repayment of long-term debt |  |  | $ 675,000,000 |  |  |  |  |  |  |
Redemption price (in percent) |  |  | 100.607% |  |  |  |  |  |  |
6.5% senior notes, due 2032 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  |  | 6.50% |  | 6.50% |  |  | 6.50%
6.5% senior notes, due 2032 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  |  |  |  | $ 750,000,000
6.75% senior notes, due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  | 6.75% |  |  |  |  |  |
Repayment of long-term debt |  |  |  | $ 750,000,000 |  |  |  |  |  |
5.25% MGM China senior notes, due 2025 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  |  | 5.25% |  | 5.25% |  |  |
5.25% MGM China senior notes, due 2025 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  | 5.25% |  |  |  |  |  |  |  |
Repayment of long-term debt |  | $ 500,000,000 |  |  |  |  |  |  |  |
7.125% MGM China senior notes, due 2031 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  |  | 7.125% |  | 7.125% |  |  |
7.125% MGM China senior notes, due 2031 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  |  |  | $ 500,000,000 |
Long-term debt, interest rate (in percent) |  |  |  |  |  |  |  |  | 7.125% |
5.375% MGM China senior notes, due 2024 | Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt, interest rate (in percent) |  |  |  | 5.375% |  |  |  |  |  |
Repayment of long-term debt |  |  |  | $ 750,000,000 |  |  |  |  |  |
Revolving Credit Facility | Senior secured credit facility | Line of Credit |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility |  |  |  |  | $ 2,300,000,000 |  |  |  |  |
Line of credit facility drawn |  |  |  |  | 0 |  |  |  |  |
Revolving Credit Facility | Senior Secured Yen Credit Facility | Line of Credit | Subsequent Event |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility | ¥ | ¥ 45.2 |  |  |  |  |  |  |  |  |
Option for higher credit facility amount | ¥ | ¥ 67.8 |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Senior Secured Yen Credit Facility | Line of Credit | Subsequent Event | Interest Rate Scenario One |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) | 1.75% |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Senior Secured Yen Credit Facility | Line of Credit | Subsequent Event | Minimum | Interest Rate Scenario Two |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) | 1.50% |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Senior Secured Yen Credit Facility | Line of Credit | Subsequent Event | Maximum | Interest Rate Scenario Two |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) | 2.25% |  |  |  |  |  |  |  |  |
Revolving Credit Facility | MGM China revolving credit facility | Line of Credit |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Line of credit facility |  |  |  |  | $ 3,000,000,000 |  | $ 23.4 |  |  |
Debt instrument, weighted average interest rate (in percent) |  |  |  |  | 6.18% |  | 6.18% |  |  |
Revolving Credit Facility | MGM China revolving credit facility | Line of Credit | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 1.625% |  |  |  |  |
Revolving Credit Facility | MGM China revolving credit facility | Line of Credit | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  |  | 2.75% |  |  |  |  |

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