Debt of the Operating Partnership - Global Revolving Credit Facilities (Details) - 12 months ended Dec. 31, 2021 $ in Millions, ¥ in Billions	USD ($) item	JPY (¥)
Global revolving credit facilities, net
Debt Instrument
Maximum borrowing capacity \| $	$ 1,500.0
Number of extension options \| item	2
Debt instrument, extension term	6 months
Yen Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity \| ¥		¥ 93.3
Digital Realty Trust, L.P. \| Global revolving credit facilities, net
Debt Instrument
Maximum borrowing capacity \| $	$ 3,000.0
Interest rate basis spread	0.85%
Commitment fee percentage	0.20%
Sustainability linking price threshold increase percentage	5.00%
Sustainability linking price threshold decrease percentage	5.00%
Digital Realty Trust, L.P. \| Yen Revolving Credit Facility
Debt Instrument
Maximum borrowing capacity	$ 291.3	¥ 33.3
Number of extension options \| item	2
Debt instrument, extension term	6 months
Interest rate basis spread	0.50%
Commitment fee percentage	0.10%
Sustainability linking price threshold increase percentage	5.00%
Sustainability linking price threshold decrease percentage	5.00%

Debt Instrument, Extension Length

No definition available.

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- Definition

The percentage of decrease to the pricing depending on sustainability performance targets under the line of credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	dlr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of increase to the pricing depending on sustainability performance targets under the line of credit facility.

+ References

No definition available.

+ Details

Name:	dlr_LineOfCreditSustainabilityLinkingPriceThresholdIncreasePercentage
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- Definition

Number Of Extension Options

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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