Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Aug. 11, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Entity Registrant Name	BLACKSTONE REAL ESTATE INCOME TRUST, INC.
Entity Central Index Key	0001662972
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Class S Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		88,132,022
Class I Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		20,584,019
Class T Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		1,117,944
Class D Shares [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		635,802