Equity and Capital - Summary of Activity For Noncontrolling Interests in The Operating Partnership (Details) - shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	5,931	8,046
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)	(14)	(1,823)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(22)	(679)
Incentive units issued upon achievement of market performance condition (units)	221	239
Grant of incentive units to employees and directors (units)	170	151
Cancellation / forfeitures of incentive units held by employees and directors (units)	3	(2)
Ending balance (units)	6,289	5,931
Common Units
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	4,389	6,212
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)	(14)	(1,823)
Ending balance (units)	4,375	4,389
Incentive Units
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	1,542	1,834
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(22)	(679)
Incentive units issued upon achievement of market performance condition (units)	221	239
Grant of incentive units to employees and directors (units)	170	151
Cancellation / forfeitures of incentive units held by employees and directors (units)	3	(2)
Ending balance (units)	1,914	1,542