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Summary of Significant Accounting Policies - Property, plant and equipment, net (Details)	12 Months Ended
	Dec. 31, 2022
Buildings and constructions
Property, Plant and Equipment [Line Items]
Useful lives	20 years
Production facilities
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Production facilities | Maximum
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Charging & battery swap equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Charging & battery swap equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful lives	8 years
R&D equipment
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Computer and electronic equipment
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Purchased software | Minimum
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Purchased software | Maximum
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful lives	1 year
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Corporate vehicles
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Others | Minimum
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Others | Maximum
Property, Plant and Equipment [Line Items]
Useful lives	5 years

X

- 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.

+ References

No definition available.

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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