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Land Use Rights, Net - Additional Information (Details) - CNY (¥) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Land Use Rights, Net |  |  |
Amortization expense for land use rights | ¥ 5,304 | ¥ 5,304 | ¥ 5,304

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- Definition This information is pertaining to the amortization expenses for land use rights. + References No definition available. + Details
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Namespace Prefix: | nio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | nio_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration