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Commitment and Contingencies - Capital commitments (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitment and Contingencies
Property, plant and equipment	¥ 4,541,383	¥ 2,987,743
Leasehold improvements	807,666	392,910
Total	¥ 5,349,049	¥ 3,380,653

X

- Definition

Represents capital expenditures contracted but not recognized.

+ References

No definition available.

+ Details

Name:	nio_CapitalExpendituresContractedButNotRecognized
Namespace Prefix:	nio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents leasehold improvement assets under capital expenditures but not recognized.

+ References

No definition available.

+ Details

Name:	nio_LeaseholdImprovementsUnderCapitalExpenditure
Namespace Prefix:	nio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents physical assets under capital expenditures but not recognized.

+ References

No definition available.

+ Details

Name:	nio_PropertyAndEquipmentUnderCapitalExpenditure
Namespace Prefix:	nio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration