Debt of the Operating Partnership - Unsecured Senior Notes (Details) - Digital Realty Trust, L.P. € in Thousands, £ in Thousands, SFr in Thousands, $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 GBP (£)	Dec. 31, 2021 CHF (SFr)	Feb. 28, 2021	Dec. 31, 2020 USD ($)
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	$ 13,562,240					$ 13,413,013
Deferred financing costs	(80,418)
Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Long-term Debt, Gross	13,000,042					12,096,029
Unamortized discounts, net of premiums	(33,612)					(34,988)
Deferred financing costs	(63,060)					(64,031)
Total unsecured senior notes, net of discount and deferred financing costs	$ 12,903,370					11,997,010
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Debt of the Operating Partnership [Line Items]
Stated interest rate	3.29%	3.29%	3.29%	3.29%
Long-term Debt, Gross	$ 135,000
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Debt of the Operating Partnership [Line Items]
Stated interest rate	11.65%	11.65%	11.65%	11.65%
Long-term Debt, Gross	$ 4,000
Floating Rate Notes due 2022 | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Aggregate principal amount	349,800	€ 300,000
Long-term Debt, Gross	$ 341,100					366,480
0.125% notes due 2022 | 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	$ 341,100					366,480
2.750% notes due 2023 | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	2.75%	2.75%	2.75%	2.75%	2.75%
Aggregate principal amount	$ 350,000
Long-term Debt, Gross						350,000
2.625% notes due 2024 | 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	$ 682,200					732,960
2.750% notes due 2024 | 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	$ 338,300					341,750
4.250% notes due 2025 | 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	$ 541,280					546,800
0.625% notes due 2025 | 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	$ 739,050					794,040
4.750% Notes due 2025 | 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					450,000
2.500% notes due 2026 | 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	$ 1,222,275					1,313,219
0.200% notes due 2026 | 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	$ 301,419
3.700% notes due 2027 | 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 | 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	$ 568,500					610,800
4.450% notes due 2028 | 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 | 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	$ 295,938
3.300% notes due 2029 | Unsecured senior notes
Debt of the Operating Partnership [Line Items]
Stated interest rate	3.30%	3.30%	3.30%	3.30%
Aggregate principal amount	$ 454,895		£ 350,000
Long-term Debt, Gross	$ 473,620					478,450
3.600% notes due 2029 | 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 | 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	$ 852,750					916,200
3.750% notes due 2030 | 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	$ 744,260					751,850
1.250% Notes due 2031 | 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	$ 568,500					610,800
0.625% notes due 2031 | 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	$ 1,137,000
1.000% Notes due 2032 | 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	$ 852,750					$ 916,200