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v3.19.3.a.u2

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | May 31, 2019 | Apr. 30, 2019 | Feb. 28, 2019 | Jun. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018
8.625% Senior Notes, Due 2019 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  | $ 850.0
Long-term debt, interest rate (as a percent) |  |  |  | 8.625% |  |  | 8.625%
Long-term debt, maturity year |  |  |  | 2019 |  |  | 2019
5.25% Senior Notes, Due 2020 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  | $ 500.0
Long-term debt, interest rate (as a percent) | 5.25% |  | 5.25% |  |  | 5.25% | 5.25%
Long-term debt, maturity year | 2020 |  | 2020 |  |  |  | 2020
6.75% Senior Notes, Due 2020 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  | $ 1,000.0
Long-term debt, interest rate (as a percent) | 6.75% |  | 6.75% |  |  | 6.75% | 6.75%
Long-term debt, maturity year | 2020 |  | 2020 |  |  |  | 2020
6.625% Senior Notes, Due 2021 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  |  |  | $ 1,250.0
Long-term debt, interest rate (as a percent) | 6.625% |  |  |  |  | 6.625% | 6.625%
Long-term debt, maturity year | 2021 |  |  |  |  |  | 2021
7.75% Senior Notes, Due 2022 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 1,000.0 |  |  |  |  | $ 1,000.0 | $ 1,000.0
Long-term debt, interest rate (as a percent) | 7.75% |  |  |  |  | 7.75% | 7.75%
Long-term debt, maturity year |  |  |  |  |  | 2022 | 2022
6% Senior Notes, Due 2023 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 1,250.0 |  |  |  |  | $ 1,250.0 | $ 1,250.0
Long-term debt, interest rate (as a percent) | 6.00% |  |  |  |  | 6.00% | 6.00%
Long-term debt, maturity year |  |  |  |  |  | 2023 | 2023
5.625% Operating Partnership Senior Notes, Due 2024 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 1,050.0 |  |  |  |  | $ 1,050.0 | $ 1,050.0
Long-term debt, interest rate (as a percent) | 5.625% |  |  |  |  | 5.625% | 5.625%
Long-term debt, maturity year |  |  |  |  |  | 2024 | 2024
5.375% MGM China Senior Notes, Due 2024 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 750.0 | $ 750.0 |  |  |  | $ 750.0 |
Long-term debt, interest rate (as a percent) | 5.375% | 5.375% |  |  |  | 5.375% |
Long-term debt, maturity year |  | 2024 |  |  |  | 2024 |
5.75% Senior Notes, Due 2025 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 1,000.0 |  |  |  | $ 1,000.0 | $ 1,000.0 | $ 1,000.0
Long-term debt, interest rate (as a percent) | 5.75% |  |  |  | 5.75% | 5.75% | 5.75%
Long-term debt, maturity year |  |  |  |  | 2025 | 2025 | 2025
5.875% MGM China Senior Notes, Due 2026 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 750.0 | $ 750.0 |  |  |  | $ 750.0 |
Long-term debt, interest rate (as a percent) | 5.875% | 5.875% |  |  |  | 5.875% |
Long-term debt, maturity year |  | 2026 |  |  |  | 2026 |
4.50% Operating Partnership Senior Notes, Due 2026 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 500.0 |  |  |  |  | $ 500.0 | $ 500.0
Long-term debt, interest rate (as a percent) | 4.50% |  |  |  |  | 4.50% | 4.50%
Long-term debt, maturity year |  |  |  |  |  | 2026 | 2026
4.625% Senior Notes, Due 2026 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 500.0 |  |  |  |  | $ 500.0 | $ 500.0
Long-term debt, interest rate (as a percent) | 4.625% |  |  |  |  | 4.625% | 4.625%
Long-term debt, maturity year |  |  |  |  |  | 2026 | 2026
5.75% Operating Partnership Senior Notes, Due 2027 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 750.0 |  |  |  |  | $ 750.0 |
Long-term debt, interest rate (as a percent) | 5.75% |  |  |  |  | 5.75% |
Long-term debt, maturity year |  |  |  |  |  | 2027 |
5.5% Senior Notes, Due 2027 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 1,000.0 |  | $ 1,000.0 |  |  | $ 1,000.0 |
Long-term debt, interest rate (as a percent) | 5.50% |  | 5.50% |  |  | 5.50% |
Long-term debt, maturity year |  |  | 2027 |  |  | 2027 |
4.50% Operating Partnership Senior Notes, Due 2028 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 350.0 |  |  |  |  | $ 350.0 | $ 350.0
Long-term debt, interest rate (as a percent) | 4.50% |  |  |  |  | 4.50% | 4.50%
Long-term debt, maturity year |  |  |  |  |  | 2028 | 2028
7% Debentures, Due 2036 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term debt, principal amount | $ 0.6 |  |  |  |  | $ 0.6 | $ 0.6
Long-term debt, interest rate (as a percent) | 7.00% |  |  |  |  | 7.00% | 7.00%
Long-term debt, maturity year |  |  |  |  |  | 2036 | 2036

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