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Earnings per Common Share or Unit - Schedule of Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares shares in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) | 12,343 | 18,460 | 17,758
Shares subject to Forward Equity Offering |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) |  | 6,250 |
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc. |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) | 5,789 | 6,691 | 7,974
Series C Cumulative Redeemable Perpetual Preferred Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) |  | 541 | 1,490
Series G Cumulative Redeemable Preferred Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) |  |  | 1,453
Series I Cumulative Redeemable Preferred Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) |  |  | 1,269
Series J Cumulative Redeemable Preferred Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) | 1,736 | 1,318 | 1,476
Series K Cumulative Redeemable Preferred Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) | 1,825 | 1,386 | 1,552
Series L Cumulative Redeemable Preferred Units |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Potentially dilutive securities (shares) | 2,993 | 2,274 | 2,544

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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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. + Details
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