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Debt of the Operating Partnership - Narrative (Details) - Unsecured senior notes - Digital Realty Trust, L.P. € in Thousands			1 Months Ended	9 Months Ended
	Jun. 25, 2025 EUR (€)	Jun. 25, 2025 USD ($)	Nov. 30, 2024 USD ($)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 USD ($)	Dec. 31, 2024
Maximum
Debt Instrument
Leverage ratio				60.00%
Secured debt leverage ratio				40.00%
Minimum
Debt Instrument
Interest coverage ratio				1.5
Total unencumbered assets				150.00%
1.875% notes due 2029
Debt Instrument
Debt face amount			$ 1,150,000,000		$ 1,150,000,000
Interest rate			1.875%	1.875%	1.875%	1.875%
Net proceeds from offering			$ 1,100,000,000
3.875% notes due 2033
Debt Instrument
Debt face amount				€ 850,000	$ 941,375,000
Interest rate				3.875%	3.875%
3.875% notes due 2034
Debt Instrument
Debt face amount	€ 850,000			€ 850,000	$ 991,015,000
Interest rate	3.875%			3.875%	3.875%	3.875%
Net proceeds from offering	€ 836,600	$ 975,000,000

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