Debt of the Operating Partnership - Summary of Outstanding Indebtedness (Details) - Digital Realty Trust, L.P. - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Amount Outstanding	$ 13,562,240	$ 13,413,013
Euro
Debt Instrument [Line Items]
Weighted-average interest rate	55.50%	51.50%
Amount Outstanding	$ 7,532,057	$ 6,912,142
U.S. dollar
Debt Instrument [Line Items]
Weighted-average interest rate	23.20%	27.10%
Amount Outstanding	$ 3,141,951	$ 3,629,000
Global revolving credit facilities, net
Debt Instrument [Line Items]
Weighted-average interest rate	0.96%	0.91%
Amount Outstanding	$ 415,116	$ 540,184
Global revolving credit facilities, net | Floating Rate | Euro
Debt Instrument [Line Items]
Weighted-average interest rate	2.23%	2.38%
Amount Outstanding	$ 13,562,240	$ 13,413,013
Unsecured term loans, net
Debt Instrument [Line Items]
Weighted-average interest rate		1.20%
Amount Outstanding	13,000,042	$ 537,470
Unsecured senior notes
Debt Instrument [Line Items]
Amount Outstanding	$ 13,000,042	$ 12,096,029
Unsecured senior notes | Floating Rate | U.S. dollar
Debt Instrument [Line Items]
Weighted-average interest rate	2.26%	2.49%
Amount Outstanding	$ 13,000,042	$ 12,096,029
Secured and other debt
Debt Instrument [Line Items]
Weighted-average interest rate	3.47%	2.92%
Amount Outstanding	$ 147,082	$ 239,330