Capital and Accumulated Other Comprehensive Income (Loss) - Partnership Units Narrative (Details) $ in Millions	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Class of Stock
Common Stock, Conversion Ratio	1
Digital Realty Trust, L.P.
Class of Stock
Common Stock, Conversion Ratio	1
Redeemable noncontrolling interests - operating partnership	$ 1,078.9	$ 997.6
Redeemable noncontrolling interests - operating partnership	$ 1,078.9	$ 997.6

Common Stock, Conversion Ratio

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- 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.

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- Definition

Redemption value, as if currently redeemable, of redeemable noncontrolling interest for common shares, units or ownership interests classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 24(b)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

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- Definition

Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

+ References

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