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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Debt of the Operating Partnership - Summary of Outstanding Indebtedness (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2026 USD ($) Option	Sep. 30, 2025 USD ($)	Jun. 30, 2026	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Repayments on secured / unsecured debt	$ 57,340	$ 1,249,865
Loss on debt extinguishment and modifications	$ (4,119)
June 2026 Acquisition
Debt Instrument [Line Items]
Percentage of voting equity interest acquired			64.00%
Digital Realty Trust, L.P.
Debt Instrument [Line Items]
Weighted-average interest rate	3.07%			2.90%
Amount Outstanding	$ 19,618,975			$ 18,556,770
Repayments on secured / unsecured debt	57,340	$ 1,249,865
Loss on debt extinguishment and modifications	$ (4,119)
Digital Realty Trust, L.P. \| Global Revolving Credit Facilities
Debt Instrument [Line Items]
Weighted-average interest rate	3.05%			2.63%
Amount Outstanding	$ 1,655,570			$ 918,540
Number of extension option \| Option	2
Maturity extension option term	6 months
Digital Realty Trust, L.P. \| Unsecured term loans
Debt Instrument [Line Items]
Weighted-average interest rate	3.29%			2.73%
Amount Outstanding	$ 424,875			$ 440,475
Digital Realty Trust, L.P. \| Unsecured senior notes
Debt Instrument [Line Items]
Weighted-average interest rate	2.60%			2.60%
Amount Outstanding	$ 15,915,981			$ 16,321,227
Digital Realty Trust, L.P. \| Secured and other debt
Debt Instrument [Line Items]
Weighted-average interest rate	7.61%			9.02%
Amount Outstanding	$ 1,622,549			$ 876,528