Acquisitions and Dipositions - Acquisitions (Details) $ in Millions	3 Months Ended
Jun. 30, 2018 USD ($)
Sheraton Grand Phoenix
Business Acquisition [Line Items]
Acquisition price	$ 255

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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