Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 05, 2017
Entity Information [Line Items]
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Registrant Name	Digital Realty Trust, Inc.
Entity Central Index Key	0001297996
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		159,774,915
Digital Realty Trust, L.P.
Entity Information [Line Items]
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Registrant Name	Digital Realty Trust, L.P.
Entity Central Index Key	0001494877
Entity Filer Category	Non-accelerated Filer