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Individually Significant Dispositions - Additional Information (Details) - Starwood Portfolio [Member] $ in Millions		12 Months Ended
	Oct. 23, 2015 USD ($) Property Market	Dec. 31, 2016
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Number of operating properties | Property	72
Number of markets | Market	23,262
Proceeds from sale of operating properties | $	$ 5,365
Disposal Group, Not Discontinued Operations [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Percentage of consolidated NOI		1.20%

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Number of markets.

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- Definition

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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.

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- Definition

The cash inflow from sale of buildings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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