Related Party Transactions	3 Months Ended
Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 12 — RELATED PARTY TRANSACTIONS MGM China Ms. Ho, Pansy Catilina Chiu King (“Ms. Ho”) is a member of the Board of Directors of, and holds a minority ownership interest in, MGM China. MGM Branding and Development Holdings, Ltd. (together with its subsidiary MGM Development Services, Ltd., “MGM Branding and Development”), an entity included in the Company’s consolidated financial statements in which Ms. Ho indirectly holds a noncontrolling interest, is party to a brand license agreement and a development services agreement with MGM China, for which the related amounts are eliminated in consolidation. Entities owned by Ms. Ho received distributions in connection with her ownership of a noncontrolling interest in MGM Branding and Development Holdings, Ltd. of $5 million and $10 million during the three months ended March 31, 2019 and 2018, respectively. MGP As described in Note 1, pursuant to the master lease, the tenant leases the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit, Beau Rivage, Borgata, Empire City, MGM National Harbor, and MGM Northfield Park (beginning April 1, 2019) from the landlord. Subsequent to the Company completing its acquisition of Empire City in January 2019, MGP acquired the developed real property associated with Empire City from the Company for consideration of approximately $634 million, which included the assumption of debt of approximately $246 million, which was immediately repaid, and the remaining paid through the issuance of Operating Partnership units. The real estate assets of Empire City are leased to the Company pursuant to an amendment to the master lease, increasing the annual rent payment to MGP by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022. In addition, the master lease provides the landlord with a right of first offer with respect to certain undeveloped land adjacent to the property to the extent the Company develops additional gaming facilities, which the landlord may exercise should the Company elect to sell this property in the future. On March 7, 2019, the tenant entered into an amendment to the existing master lease with respect to investments made by the Company related to the Park MGM and NoMad Las Vegas property (the “Park MGM Lease Transaction”). In connection with the transaction, the Company received consideration of $638 million, of which approximately $606 million was paid in cash and the remaining paid through the issuance of Operating Partnership units. Additionally, the annual rent payment to MGP was increased by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022. Additionally, on April 1, 2019, the Company acquired the membership interests of Northfield from MGP, which held the operations of Northfield, for fair value of consideration of approximately $301 million consisting of approximately 9 million Operating Partnership units that were ultimately redeemed by the Operating Partnership, and MGP retained the associated real estate assets. The Company then rebranded the property to MGM Northfield Park, which was then added to the existing master lease between the landlord and tenant, increasing the annual rent payment to MGP by $60 million. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022. The addition of Empire City and the Park MGM Lease Transaction in January 2019 and March 2019, respectively, increased annual rent payments associated with the master lease for the third lease year to $870 million from $770 million. In connection with the commencement of the fourth lease year on April 1, 2019, as well as the addition of MGM Northfield Park on April 1, 2019, annual rent payments under the master lease increased to $946 million from $870 million. The master lease contains customary events of default and financial covenants. The Company was in compliance with all applicable covenants as of March 31, 2019. All intercompany transactions, including transactions under the master lease and those described above, have been eliminated in the Company’s consolidation of MGP. The public ownership of MGP’s Class A shares is recognized as non-controlling interests in the Company’s consolidated financial statements.

Related Party Transactions

3 Months Ended

Mar. 31, 2019

NOTE 12 — RELATED PARTY TRANSACTIONS

MGM China

Ms. Ho, Pansy Catilina Chiu King (“Ms. Ho”) is a member of the Board of Directors of, and holds a minority ownership interest in, MGM China. MGM Branding and Development Holdings, Ltd. (together with its subsidiary MGM Development Services, Ltd., “MGM Branding and Development”), an entity included in the Company’s consolidated financial statements in which Ms. Ho indirectly holds a noncontrolling interest, is party to a brand license agreement and a development services agreement with MGM China, for which the related amounts are eliminated in consolidation. Entities owned by Ms. Ho received distributions in connection with her ownership of a noncontrolling interest in MGM Branding and Development Holdings, Ltd. of $5 million and $10 million during the three months ended March 31, 2019 and 2018, respectively.

MGP

As described in Note 1, pursuant to the master lease, the tenant leases the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit, Beau Rivage, Borgata, Empire City, MGM National Harbor, and MGM Northfield Park (beginning April 1, 2019) from the landlord.

Subsequent to the Company completing its acquisition of Empire City in January 2019, MGP acquired the developed real property associated with Empire City from the Company for consideration of approximately $634 million, which included the assumption of debt of approximately $246 million, which was immediately repaid, and the remaining paid through the issuance of Operating Partnership units. The real estate assets of Empire City are leased to the Company pursuant to an amendment to the master lease, increasing the annual rent payment to MGP by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022. In addition, the master lease provides the landlord with a right of first offer with respect to certain undeveloped land adjacent to the property to the extent the Company develops additional gaming facilities, which the landlord may exercise should the Company elect to sell this property in the future.

On March 7, 2019, the tenant entered into an amendment to the existing master lease with respect to investments made by the Company related to the Park MGM and NoMad Las Vegas property (the “Park MGM Lease Transaction”). In connection with the transaction, the Company received consideration of $638 million, of which approximately $606 million was paid in cash and the remaining paid through the issuance of Operating Partnership units. Additionally, the annual rent payment to MGP was increased by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022.

Additionally, on April 1, 2019, the Company acquired the membership interests of Northfield from MGP, which held the operations of Northfield, for fair value of consideration of approximately $301 million consisting of approximately 9 million Operating Partnership units that were ultimately redeemed by the Operating Partnership, and MGP retained the associated real estate assets. The Company then rebranded the property to MGM Northfield Park, which was then added to the existing master lease between the landlord and tenant, increasing the annual rent payment to MGP by $60 million. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022.

The addition of Empire City and the Park MGM Lease Transaction in January 2019 and March 2019, respectively, increased annual rent payments associated with the master lease for the third lease year to $870 million from $770 million. In connection with the commencement of the fourth lease year on April 1, 2019, as well as the addition of MGM Northfield Park on April 1, 2019, annual rent payments under the master lease increased to $946 million from $870 million. The master lease contains customary events of default and financial covenants. The Company was in compliance with all applicable covenants as of March 31, 2019.

All intercompany transactions, including transactions under the master lease and those described above, have been eliminated in the Company’s consolidation of MGP. The public ownership of MGP’s Class A shares is recognized as non-controlling interests in the Company’s consolidated financial statements.