Amount of amortization expense attributable to debt issuance costs.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
Debt - Narrative (Details) - USD ($)	Jan. 29, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Estimated fair value of long-term debt		$ 5,000,000,000.0		$ 5,000,000,000.0			$ 4,500,000,000
Amortization of deferred financing costs		3,200,000	$ 3,100,000	6,400,000	$ 6,100,000
Term Loan \| Senior Secured Term Loan A Facility
Debt Instrument [Line Items]
Principal amount under term loan facility		$ 470,000,000		$ 470,000,000
Interest rate		4.15%		4.15%
Term Loan \| Senior Secured Term Loan B Facility
Debt Instrument [Line Items]
Principal amount under term loan facility		$ 1,800,000,000		$ 1,800,000,000
Repayments of long-term debt		4,600,000		9,300,000
Revolving Credit Facility \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity under credit facility		$ 1,400,000,000		$ 1,400,000,000
Interest rate		4.40%		4.40%
Amounts drawn on credit facility		$ 0		$ 0			$ 550,000,000
Empire City
Debt Instrument [Line Items]
Liabilities incurred	$ 246,000,000.0
Operating Partnership Senior Notes \| 5.75% senior notes due 2027
Debt Instrument [Line Items]
Interest rate						5.75%
Senior notes						$ 750,000,000