Label	Element	Value
DFT Company [Member]
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	$ 219,250,000
Payments to Noncontrolling Interests	us-gaap_PaymentsToMinorityShareholders	676,566,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets	1,582,385,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Redeemable Noncontrolling Interests Operating Partnership	dlr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedRedeemableNoncontrollingInterestsOperatingPartnership	66,259,000
DFT Company [Member] | Revolving Credit Facility [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	450,697,000
DFT Company [Member] | Unsecured Term Loan [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	250,000,000
DFT Company [Member] | Digital Realty Trust L P [Member]
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	219,250,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets	1,582,385,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Redeemable Noncontrolling Interests Operating Partnership	dlr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedRedeemableNoncontrollingInterestsOperatingPartnership	66,259,000
DFT Company [Member] | Digital Realty Trust L P [Member] | Revolving Credit Facility [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	450,697,000
DFT Company [Member] | Digital Realty Trust L P [Member] | Unsecured Term Loan [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt	250,000,000
DFT Company [Member] | Parent [Member]
Stock Issued During Period, Value, Acquisitions	us-gaap_StockIssuedDuringPeriodValueAcquisitions	5,247,558,000
DFT Company [Member] | Parent [Member] | Digital Realty Trust L P [Member]
Stock Issued During Period, Value, Acquisitions	us-gaap_StockIssuedDuringPeriodValueAcquisitions	5,247,558,000
DFT Company [Member] | Common Unit [Member] | Digital Realty Trust L P [Member]
Stock Issued During Period, Value, Acquisitions	us-gaap_StockIssuedDuringPeriodValueAcquisitions	$ 676,566,000