Equity and Accumulated Other Comprehensive Income, Net (Summary of Activity For Noncontrolling Interests in The Operating Partnership) (Details)	6 Months Ended
	Jun. 30, 2016 shares
Common and Incentive Unit Activity [Roll Forward]
Beginning balance (units)	2,833,326
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)	(202,500)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(118,493)
Grant of incentive units to employees and directors (units)	24,823
Ending balance (units)	2,537,156
Common Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance (units)	1,421,314
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)	(202,500)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	0
Grant of incentive units to employees and directors (units)	0
Ending balance (units)	1,218,814
Incentive Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance (units)	1,412,012
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)	0
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(118,493)
Grant of incentive units to employees and directors (units)	24,823
Ending balance (units)	1,318,342