Debt of the Operating Partnership - Unsecured Senior Notes (Details) € in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands	Jun. 30, 2022 USD ($)	Jun. 30, 2022 EUR (€)	Jun. 30, 2022 CHF (SFr)	Jun. 30, 2022 GBP (£)	Dec. 31, 2021 USD ($)	Jun. 30, 2021
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	$ 14,410,176				$ 13,562,240
Deferred financing costs	(79,843)
Senior Notes.
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	159,024
Deferred financing costs	(325)
Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	12,792,422				13,000,042
Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	12,792,422				13,000,042
Unamortized discounts, net of premiums	(36,026)				(33,612)
Deferred financing costs	(60,828)				(63,060)
Total unsecured senior notes, net of discount and deferred financing costs	12,695,568				12,903,370
Floating Rate Notes due 2022 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Aggregate principal amount	349,800	€ 300,000
Long-term Debt, Gross	$ 314,520				341,100
0.125% notes due 2022 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.125%	0.125%	0.125%	0.125%
Aggregate principal amount	$ 332,760	€ 300,000
Long-term Debt, Gross	$ 314,520				341,100
0.600% notes due 2023 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.60%	0.60%	0.60%	0.60%
Aggregate principal amount	$ 108,310		SFr 100,000
Long-term Debt, Gross	$ 104,725
2.750% notes due 2023 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate						2.75%
2.625% notes due 2024 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	2.625%	2.625%	2.625%	2.625%
Aggregate principal amount	$ 677,040	€ 600,000
Long-term Debt, Gross	$ 629,040				682,200
2.750% notes due 2024 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	2.75%	2.75%	2.75%	2.75%
Aggregate principal amount	$ 324,925			£ 250,000
Long-term Debt, Gross	$ 304,450				338,300
4.250% notes due 2025 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	4.25%	4.25%	4.25%	4.25%
Aggregate principal amount	$ 634,480			£ 400,000
Long-term Debt, Gross	$ 487,120				541,280
0.625% notes due 2025 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.625%	0.625%	0.625%	0.625%
Aggregate principal amount	$ 720,980	€ 650,000
Long-term Debt, Gross	$ 681,460				739,050
4.750% Notes due 2025 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	4.75%	4.75%	4.75%	4.75%
Aggregate principal amount	$ 450,000
Long-term Debt, Gross					450,000
2.500% notes due 2026 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	2.50%	2.50%	2.50%	2.50%
Aggregate principal amount	$ 1,224,640	€ 1,075,000
Long-term Debt, Gross	$ 1,127,030				1,222,275
0.200% notes due 2026 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.20%	0.20%	0.20%	0.20%
Aggregate principal amount	$ 298,404		SFr 275,000
Long-term Debt, Gross	$ 287,993				301,419
1.700% notes due 2027 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.70%	1.70%	1.70%	1.70%
Aggregate principal amount	$ 162,465		SFr 150,000
Long-term Debt, Gross	$ 157,087
3.700% notes due 2027 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	3.70%	3.70%	3.70%	3.70%
Aggregate principal amount	$ 1,000,000
Long-term Debt, Gross	$ 1,000,000				1,000,000
1.125% notes due 2028 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.125%	1.125%	1.125%	1.125%
Aggregate principal amount	$ 548,550	€ 500,000
Long-term Debt, Gross	$ 524,200				568,500
4.450% notes due 2028 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	4.45%	4.45%	4.45%	4.45%
Aggregate principal amount	$ 650,000
Long-term Debt, Gross	$ 650,000				650,000
0.550% notes due 2029 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.55%	0.55%	0.55%	0.55%
Aggregate principal amount	$ 292,478		SFr 270,000
Long-term Debt, Gross	$ 282,757				295,938
3.300% notes due 2029 | Digital Realty Trust, L.P.
Debt of the Operating Partnership [Line Items]
Stated interest rate	3.30%	3.30%	3.30%	3.30%
3.300% notes due 2029 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Aggregate principal amount	$ 454,895			£ 350,000
Long-term Debt, Gross	$ 426,230				473,620
3.600% notes due 2029 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	3.60%	3.60%	3.60%	3.60%
Aggregate principal amount	$ 900,000
Long-term Debt, Gross	$ 900,000				900,000
1.500% Notes due 2030 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.50%	1.50%	1.50%	1.50%
Aggregate principal amount	$ 831,900	€ 750,000
Long-term Debt, Gross	$ 786,300				852,750
3.750% notes due 2030 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	3.75%	3.75%	3.75%	3.75%
Aggregate principal amount	$ 719,825			£ 550,000
Long-term Debt, Gross	$ 669,790				744,260
1.250% Notes due 2031 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.25%	1.25%	1.25%	1.25%
Aggregate principal amount	$ 560,950	€ 500,000
Long-term Debt, Gross	$ 524,200				568,500
0.625% notes due 2031 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	0.625%	0.625%	0.625%	0.625%
Aggregate principal amount	$ 1,220,700	€ 1,000,000
Long-term Debt, Gross	$ 1,048,400				1,137,000
1.000% Notes due 2032 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.00%	1.00%	1.00%	1.00%
Aggregate principal amount	$ 874,500	€ 750,000
Long-term Debt, Gross	$ 786,300				$ 852,750
4.750% notes due 2025 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	4.75%	4.75%	4.75%	4.75%
1.375% notes due 2032 | Digital Realty Trust, L.P. | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	1.375%	1.375%	1.375%	1.375%
Aggregate principal amount	$ 849,375	€ 750,000
Long-term Debt, Gross	$ 786,300