Equity and Capital - Summary of Activity For Noncontrolling Interests in The Operating Partnership (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	6,289	5,931
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)		(14)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(112)	(22)
Incentive units issued upon achievement of market performance condition (units)	142	221
Grant of incentive units to employees and directors (units)	171	170
Cancellation / forfeitures of incentive units held by employees and directors (units)	(41)	3
Ending balance (units)	6,449	6,289
Common Units
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	4,375	4,389
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (units)		(14)
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(32)
Ending balance (units)	4,343	4,375
Incentive Units
Common And Incentive Unit Activity [Roll Forward]
Beginning balance (units)	1,914	1,542
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock (units)	(80)	(22)
Incentive units issued upon achievement of market performance condition (units)	142	221
Grant of incentive units to employees and directors (units)	171	170
Cancellation / forfeitures of incentive units held by employees and directors (units)	(41)	3
Ending balance (units)	2,106	1,914