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Deferred Revenue/Income - Additional information (Details) - CNY (¥) ¥ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
Deferred Revenue/Income |  |
Unrecognized deferred revenue | ¥ 3,546,849 | ¥ 2,164,288
Investor relations program, term | 5 years |
Deferred revenue, ADR | ¥ 15,041 | ¥ 33,478

X
- Definition Amount of deferred income related to American Depositary Receipt, which is not an obligation to transfer product and service to customer for which consideration has been received or is receivable. + References No definition available. + Details
Name: | nio_DeferredIncomeAmericanDepositaryReceipt
Namespace Prefix: | nio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The term of the investor relations program. + References No definition available. + Details
Name: | nio_InvestorRelationsProgramTerm
Namespace Prefix: | nio_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of unrecognized deferred revenue at the balance sheet date. + References No definition available. + Details
Name: | nio_UnrecognizedDeferredRevenue
Namespace Prefix: | nio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration