Aggregate gross sales price that remained unsold under the prior program.

No definition available.

Name:	dlr_AggregateGrossSalesPriceRemainedUnsoldUnderPriorProgram
Namespace Prefix:	dlr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The maximum amount for which shares could be sold under the sales agreement.

+ References

No definition available.

+ Details

Name:	dlr_SalesAgreementMaximumAmountForWhichSharesCouldBeSold
Namespace Prefix:	dlr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=dlr_GlobalRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=dlr_SalesAgreement2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details) - USD ($) $ in Millions	Apr. 01, 2022	Apr. 05, 2022	Mar. 31, 2022
Global revolving credit facilities
Subsequent Events
Line of credit facility maximum borrowing capacity			$ 3,000.0
Subsequent Event \| 2022 Sales Agreement
Subsequent Events
Aggregate maximum offering price	$ 1,500.0
Aggregate gross sales price unsold	$ 577.6
Subsequent Event \| Global revolving credit facilities
Subsequent Events
Line of credit facility maximum borrowing capacity		$ 3,750.0