Blackberry Limited and Summary of Significant Accounting Policies and Critical Accounting Estimates - Schedule of Finite-Lived Intangible Assets (Details) |
Feb. 28, 2026 |
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| Acquired technology | Minimum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 3 years |
| Acquired technology | Maximum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 10 years |
| Intellectual property | Minimum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 1 year |
| Intellectual property | Maximum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 25 years |
| Other acquired intangibles | Minimum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 2 years |
| Other acquired intangibles | Maximum | |
| Intangible Asset, Finite-Lived [Line Items] | |
| Useful life of finite-lived intangible assets | 10 years |
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- Definition Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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