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Debt of the Operating Partnership - Unsecured Senior Notes (Details) - Digital Realty Trust, L.P. € in Thousands, £ in Thousands, SFr in Thousands | Sep. 30, 2025 USD ($) | Sep. 30, 2025 EUR (€) | Sep. 30, 2025 GBP (£) | Sep. 30, 2025 CHF (SFr) | Jun. 25, 2025 EUR (€) | Dec. 31, 2024 USD ($) | Nov. 30, 2024 USD ($)
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Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Long-term debt, gross | $ 18,370,084,000 |  |  |  |  | $ 16,846,875,000 |
Deferred financing costs, net | (99,357,000) |  |  |  |  |  |
Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Long-term debt, gross | 15,923,345,000 |  |  |  |  | 14,059,415,000 |
Unamortized discounts, net of premiums | (41,302,000) |  |  |  |  | (27,476,000) |
Deferred financing costs, net | (73,478,000) |  |  |  |  | (69,087,000) |
Total unsecured senior notes, net of discount and deferred financing costs | $ 15,808,565,000 |  |  |  |  | 13,962,852,000 |
4.250% notes due 2025 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 4.25% | 4.25% | 4.25% | 4.25% |  |  |
Aggregate principal amount | $ 634,480,000 |  | £ 400,000 |  |  |  |
Long-term debt, gross |  |  |  |  |  | 500,640,000 |
0.625% notes due 2025 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 0.625% | 0.625% | 0.625% | 0.625% |  |  |
Aggregate principal amount | $ 720,980,000 | € 650,000 |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 673,010,000 |
2.500% notes due 2026 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 2.50% | 2.50% | 2.50% | 2.50% |  |  |
Aggregate principal amount | $ 1,224,640,000 | € 1,075,000 |  |  |  |  |
Long-term debt, gross | $ 1,261,405,000 |  |  |  |  | 1,113,055,000 |
0.200% notes due 2026 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 0.20% | 0.20% | 0.20% | 0.20% |  |  |
Aggregate principal amount | $ 298,404,000 |  |  | SFr 275,000 |  |  |
Long-term debt, gross | $ 345,305,000 |  |  |  |  | 302,987,000 |
1.700% notes due 2027 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.70% | 1.70% | 1.70% | 1.70% |  |  |
Aggregate principal amount | $ 162,465,000 |  |  | SFr 150,000 |  |  |
Long-term debt, gross | $ 188,348,000 |  |  |  |  | 165,265,000 |
3.700% notes due 2027 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.70% | 3.70% | 3.70% | 3.70% |  |  |
Aggregate principal amount | $ 1,000,000,000 |  |  |  |  |  |
Long-term debt, gross | $ 1,000,000,000 |  |  |  |  | 1,000,000,000 |
5.550% notes due 2028 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 5.55% | 5.55% | 5.55% | 5.55% |  |  |
Aggregate principal amount | $ 900,000,000 |  |  |  |  |  |
Long-term debt, gross | $ 900,000,000 |  |  |  |  | 900,000,000 |
1.125% notes due 2028 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.125% | 1.125% | 1.125% | 1.125% |  |  |
Aggregate principal amount | $ 548,550,000 | € 500,000 |  |  |  |  |
Long-term debt, gross | $ 586,700,000 |  |  |  |  | 517,700,000 |
4.450% notes due 2028 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 4.45% | 4.45% | 4.45% | 4.45% |  |  |
Aggregate principal amount | $ 650,000,000 |  |  |  |  |  |
Long-term debt, gross | $ 650,000,000 |  |  |  |  | 650,000,000 |
0.550% notes due 2029 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 0.55% | 0.55% | 0.55% | 0.55% |  |  |
Aggregate principal amount | $ 292,478,000 |  |  | SFr 270,000 |  |  |
Long-term debt, gross | $ 339,027,000 |  |  |  |  | 297,478,000 |
3.600% notes due 2029 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.60% | 3.60% | 3.60% | 3.60% |  |  |
Aggregate principal amount | $ 900,000,000 |  |  |  |  |  |
Long-term debt, gross | $ 900,000,000 |  |  |  |  | 900,000,000 |
3.300% notes due 2029 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.30% | 3.30% | 3.30% | 3.30% |  |  |
Aggregate principal amount | $ 454,895,000 |  | £ 350,000 |  |  |  |
Long-term debt, gross | $ 470,610,000 |  |  |  |  | $ 438,060,000 |
1.875% notes due 2029 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.875% | 1.875% | 1.875% | 1.875% |  | 1.875% | 1.875%
Aggregate principal amount | $ 1,150,000,000 |  |  |  |  |  | $ 1,150,000,000
Long-term debt, gross | $ 1,150,000,000 |  |  |  |  | $ 1,150,000,000 |
1.500% notes due 2030 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.50% | 1.50% | 1.50% | 1.50% |  |  |
Aggregate principal amount | $ 831,900,000 | € 750,000 |  |  |  |  |
Long-term debt, gross | $ 880,050,000 |  |  |  |  | 776,550,000 |
3.750% notes due 2030 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.75% | 3.75% | 3.75% | 3.75% |  |  |
Aggregate principal amount | $ 719,825,000 |  | £ 550,000 |  |  |  |
Long-term debt, gross | $ 739,530,000 |  |  |  |  | 688,380,000 |
1.250% notes due 2031 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.25% | 1.25% | 1.25% | 1.25% |  |  |
Aggregate principal amount | $ 560,950,000 | € 500,000 |  |  |  |  |
Long-term debt, gross | $ 586,700,000 |  |  |  |  | 517,700,000 |
0.625% notes due 2031 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 0.625% | 0.625% | 0.625% | 0.625% |  |  |
Aggregate principal amount | $ 1,220,700,000 | € 1,000,000 |  |  |  |  |
Long-term debt, gross | $ 1,173,400,000 |  |  |  |  | 1,035,400,000 |
1.000% notes due 2032 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.00% | 1.00% | 1.00% | 1.00% |  |  |
Aggregate principal amount | $ 874,500,000 | € 750,000 |  |  |  |  |
Long-term debt, gross | $ 880,050,000 |  |  |  |  | 776,550,000 |
1.375% notes due 2032 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 1.375% | 1.375% | 1.375% | 1.375% |  |  |
Aggregate principal amount | $ 849,375,000 | € 750,000 |  |  |  |  |
Long-term debt, gross | $ 880,050,000 |  |  |  |  | 776,550,000 |
3.875% notes due 2033 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.875% | 3.875% | 3.875% | 3.875% |  |  |
Aggregate principal amount | $ 941,375,000 | € 850,000 |  |  |  |  |
Long-term debt, gross | $ 997,390,000 |  |  |  |  | $ 880,090,000 |
3.875% notes due 2034 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.875% | 3.875% | 3.875% | 3.875% | 3.875% | 3.875% |
Aggregate principal amount | $ 991,015,000 | € 850,000 |  |  | € 850,000 |  |
Long-term debt, gross | 997,390,000 |  |  |  |  |  |
3.875% notes due 2035 | Unsecured senior notes |  |  |  |  |  |  |
Debt of the Operating Partnership [Line Items] |  |  |  |  |  |  |
Aggregate principal amount | 876,180,000 | € 850,000 |  |  |  |  |
Long-term debt, gross | $ 997,390,000 |  |  |  |  |  |

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