Income Taxes	3 Months Ended
Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 6 — INCOME TAXES For interim income tax reporting the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 51.9% for the three months ended March 31, 2019 compared to a benefit of 47.2% in the prior year quarter. The Company recognizes deferred income tax assets, net of applicable reserves, related to net operating losses, tax credit carryforwards and certain temporary differences. The Company recognizes future tax benefits to the extent that realization of such benefit is more likely than not. Otherwise, a valuation allowance is applied. MGM Grand Paradise was previously granted an exemption from the Macau 12% complementary tax on gaming profits through March 31, 2020 and, given the Extension Agreement entered into during the quarter, intends to apply for an extension of such exemption to June 26, 2022 to run concurrent with its extended sub-concession. Competitors of MGM Grand Paradise have received additional extensions of their complementary tax exemptions through June 26, 2022, which runs concurrent with the end of the term of their gaming concessions. The Company believes MGM Grand Paradise should also be entitled to such extension in order to ensure non-discriminatory treatment among gaming concessionaires and sub-concessionaires, a requirement under Macanese law. Based upon these developments, the Company re-measured the net deferred tax liability of MGM Grand Paradise assuming that it will receive an additional extension of its complementary tax exemption through June 26, 2022. This change in assumption resulted in a net increase in deferred tax liabilities in the amount of $35 million, due to an increase in the valuation allowance on certain net operating loss deferred tax assets partially offset by a reduction in certain intangible deferred tax liabilities, and a corresponding income tax expense for the three months ended March 31, 2019. The Company recorded a $10 million increase in its valuation allowance on its foreign tax credit carryovers (“FTCs”) and a corresponding increase in its income tax expense for the three months ended March 31, 2019 based upon a revision of certain assumptions impacting the valuation allowance. The FTCs are attributable to the Macau Special Gaming Tax, which is 35% of gross gaming revenue in Macau. Significant judgment is required in assessing the need for a valuation allowance and future changes to these assumptions could result in material changes in the valuation allowance with a corresponding impact on the provision for income taxes in the period including such change. Further, the Empire City Acquisition required a re-measurement of existing state deferred tax liabilities resulting in a $10 million increase in deferred tax liabilities and a corresponding income tax expense for the three months ended March 31, 2019.

Income Taxes

3 Months Ended

Mar. 31, 2019

NOTE 6 — INCOME TAXES

For interim income tax reporting the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 51.9% for the three months ended March 31, 2019 compared to a benefit of 47.2% in the prior year quarter.

The Company recognizes deferred income tax assets, net of applicable reserves, related to net operating losses, tax credit carryforwards and certain temporary differences. The Company recognizes future tax benefits to the extent that realization of such benefit is more likely than not. Otherwise, a valuation allowance is applied.

MGM Grand Paradise was previously granted an exemption from the Macau 12% complementary tax on gaming profits through March 31, 2020 and, given the Extension Agreement entered into during the quarter, intends to apply for an extension of such exemption to June 26, 2022 to run concurrent with its extended sub-concession. Competitors of MGM Grand Paradise have received additional extensions of their complementary tax exemptions through June 26, 2022, which runs concurrent with the end of the term of their gaming concessions. The Company believes MGM Grand Paradise should also be entitled to such extension in order to ensure

non-discriminatory treatment among gaming concessionaires and sub-concessionaires, a requirement under Macanese law. Based upon these developments, the Company re-measured the net deferred tax liability of MGM Grand Paradise assuming that it will receive an additional extension of its complementary tax exemption through June 26, 2022. This change in assumption resulted in a net increase in deferred tax liabilities in the amount of $35 million, due to an increase in the valuation allowance on certain net operating loss deferred tax assets partially offset by a reduction in certain intangible deferred tax liabilities, and a corresponding income tax expense for the three months ended March 31, 2019.

The Company recorded a $10 million increase in its valuation allowance on its foreign tax credit carryovers (“FTCs”) and a corresponding increase in its income tax expense for the three months ended March 31, 2019 based upon a revision of certain assumptions impacting the valuation allowance. The FTCs are attributable to the Macau Special Gaming Tax, which is 35% of gross gaming revenue in Macau. Significant judgment is required in assessing the need for a valuation allowance and future changes to these assumptions could result in material changes in the valuation allowance with a corresponding impact on the provision for income taxes in the period including such change.

Further, the Empire City Acquisition required a re-measurement of existing state deferred tax liabilities resulting in a $10 million increase in deferred tax liabilities and a corresponding income tax expense for the three months ended March 31, 2019.