Equity and Accumulated Other Comprehensive Income, Net (Summary Of Activity For Noncontrolling Interests In The Operating Partnership) (Details)	3 Months Ended
	Mar. 31, 2016 shares
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	2,833,326
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	(200,000)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	(52,521)
Cancellation of incentive units held by employees and directors	0
Grant of incentive units to employees and directors	15,745
Ending balance	2,596,550
Common Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	1,421,314
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	(200,000)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	0
Cancellation of incentive units held by employees and directors	0
Grant of incentive units to employees and directors	0
Ending balance	1,221,314
Incentive Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	1,412,012
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	0
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	(52,521)
Cancellation of incentive units held by employees and directors	0
Grant of incentive units to employees and directors	15,745
Ending balance	1,375,236