<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.23.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>472</ContextCount>
  <ElementCount>642</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>180</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>14</UnitCount>
  <MyReports>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/StatementConsolidatedBalanceSheetsParentheticals</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/StatementConsolidatedStatementsOfComprehensiveLoss</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/StatementConsolidatedStatementsOfChangesInShareholdersEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>10101 - Disclosure - Organization and Nature of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperations</Role>
      <ShortName>Organization and Nature of Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10201 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10301 - Disclosure - Recent Accounting Pronouncements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRecentAccountingPronouncements</Role>
      <ShortName>Recent Accounting Pronouncements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10401 - Disclosure - Concentration and Risks</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConcentrationAndRisks</Role>
      <ShortName>Concentration and Risks</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10501 - Disclosure - Acquisition of Chongqing Zhizao and Changzhou Huixiang</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAcquisitionOfChongqingZhizaoAndChangzhouHuixiang</Role>
      <ShortName>Acquisition of Chongqing Zhizao and Changzhou Huixiang</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10601 - Disclosure - Trade receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeReceivables</Role>
      <ShortName>Trade receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10701 - Disclosure - Inventories</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureInventories</Role>
      <ShortName>Inventories</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10801 - Disclosure - Property, Plant and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosurePropertyPlantAndEquipmentNet</Role>
      <ShortName>Property, Plant and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10901 - Disclosure - Intangible Assets, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureIntangibleAssetsNet</Role>
      <ShortName>Intangible Assets, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>11001 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11101 - Disclosure - Other Non-current Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOtherNonCurrentAssets</Role>
      <ShortName>Other Non-current Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11201 - Disclosure - Long-term Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLongTermInvestments</Role>
      <ShortName>Long-term Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11301 - Disclosure - Short-term Borrowings and Long-term Borrowings</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShortTermBorrowingsAndLongTermBorrowings</Role>
      <ShortName>Short-term Borrowings and Long-term Borrowings</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11401 - Disclosure - Trade and Notes Payable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeAndNotesPayable</Role>
      <ShortName>Trade and Notes Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11501 - Disclosure - Accruals and Other Current Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAccrualsAndOtherCurrentLiabilities</Role>
      <ShortName>Accruals and Other Current Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11601 - Disclosure - Revenue Disaggregation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRevenueDisaggregation</Role>
      <ShortName>Revenue Disaggregation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11701 - Disclosure - Deferred Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDeferredRevenue</Role>
      <ShortName>Deferred Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11801 - Disclosure - Research and Development Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureResearchAndDevelopmentExpenses</Role>
      <ShortName>Research and Development Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>11901 - Disclosure - Selling, General and Administrative Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSellingGeneralAndAdministrativeExpenses</Role>
      <ShortName>Selling, General and Administrative Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>12001 - Disclosure - Discontinued Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperations</Role>
      <ShortName>Discontinued Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>12101 - Disclosure - Ordinary Shares</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrdinaryShares</Role>
      <ShortName>Ordinary Shares</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>12201 - Disclosure - Convertible Redeemable Preferred Shares and Warrants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrants</Role>
      <ShortName>Convertible Redeemable Preferred Shares and Warrants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>12301 - Disclosure - Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLossPerShare</Role>
      <ShortName>Loss Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>12401 - Disclosure - Share-based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensation</Role>
      <ShortName>Share-based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>12501 - Disclosure - Taxation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxation</Role>
      <ShortName>Taxation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>12601 - Disclosure - Fair Value Measurement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureFairValueMeasurement</Role>
      <ShortName>Fair Value Measurement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>12701 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>12801 - Disclosure - Related Party Balances and Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRelatedPartyBalancesAndTransactions</Role>
      <ShortName>Related Party Balances and Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>12901 - Disclosure - Restricted Net Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRestrictedNetAssets</Role>
      <ShortName>Restricted Net Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>13001 - Disclosure - Parent Company Only Condensed Financial Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformation</Role>
      <ShortName>Parent Company Only Condensed Financial Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>20202 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>30103 - Disclosure - Organization and Nature of Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsTables</Role>
      <ShortName>Organization and Nature of Operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperations</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>30203 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>30603 - Disclosure - Trade receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeReceivablesTables</Role>
      <ShortName>Trade receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTradeReceivables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>30703 - Disclosure - Inventories (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureInventoriesTables</Role>
      <ShortName>Inventories (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureInventories</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>30803 - Disclosure - Property, Plant and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosurePropertyPlantAndEquipmentNetTables</Role>
      <ShortName>Property, Plant and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosurePropertyPlantAndEquipmentNet</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>30903 - Disclosure - Intangible Assets, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureIntangibleAssetsNetTables</Role>
      <ShortName>Intangible Assets, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureIntangibleAssetsNet</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>31003 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureLeases</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>31103 - Disclosure - Other Non-current Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOtherNonCurrentAssetsTables</Role>
      <ShortName>Other Non-current Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureOtherNonCurrentAssets</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>31203 - Disclosure - Long term Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLongTermInvestmentsTables</Role>
      <ShortName>Long term Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>31303 - Disclosure - Short-term Borrowings and Long-term Borrowings (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShortTermBorrowingsAndLongTermBorrowingsTables</Role>
      <ShortName>Short-term Borrowings and Long-term Borrowings (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureShortTermBorrowingsAndLongTermBorrowings</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>31403 - Disclosure - Trade and Notes Payable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeAndNotesPayableTables</Role>
      <ShortName>Trade and Notes Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTradeAndNotesPayable</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>31503 - Disclosure - Accruals and Other Current Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesTables</Role>
      <ShortName>Accruals and Other Current Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureAccrualsAndOtherCurrentLiabilities</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>31603 - Disclosure - Revenue Disaggregation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRevenueDisaggregationTables</Role>
      <ShortName>Revenue Disaggregation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureRevenueDisaggregation</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>31703 - Disclosure - Deferred Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDeferredRevenueTables</Role>
      <ShortName>Deferred Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureDeferredRevenue</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>31803 - Disclosure - Research and Development Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureResearchAndDevelopmentExpensesTables</Role>
      <ShortName>Research and Development Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureResearchAndDevelopmentExpenses</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>31903 - Disclosure - Selling, General and Administrative Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSellingGeneralAndAdministrativeExpensesTables</Role>
      <ShortName>Selling, General and Administrative Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureSellingGeneralAndAdministrativeExpenses</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>32003 - Disclosure - Discontinued Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperationsTables</Role>
      <ShortName>Discontinued Operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureDiscontinuedOperations</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>32203 - Disclosure - Convertible Redeemable Preferred Shares and Warrants (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrantsTables</Role>
      <ShortName>Convertible Redeemable Preferred Shares and Warrants (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrants</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>32303 - Disclosure - Loss Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLossPerShareTables</Role>
      <ShortName>Loss Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureLossPerShare</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>32403 - Disclosure - Share-based Compensation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationTables</Role>
      <ShortName>Share-based Compensation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureShareBasedCompensation</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>32503 - Disclosure - Taxation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationTables</Role>
      <ShortName>Taxation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTaxation</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>32603 - Disclosure - Fair Value Measurement (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureFairValueMeasurementTables</Role>
      <ShortName>Fair Value Measurement (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureFairValueMeasurement</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>32703 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>32803 - Disclosure - Related Party Balances and Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRelatedPartyBalancesAndTransactionsTables</Role>
      <ShortName>Related Party Balances and Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureRelatedPartyBalancesAndTransactions</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>33003 - Disclosure - Parent Company Only Condensed Financial Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformationTables</Role>
      <ShortName>Parent Company Only Condensed Financial Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformation</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>40101 - Disclosure - Organization and Nature of Operations - Reorganization (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsReorganizationDetails</Role>
      <ShortName>Organization and Nature of Operations - Reorganization (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>40102 - Disclosure - Organization and Nature of Operations - Variable interest entity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsVariableInterestEntityDetails</Role>
      <ShortName>Organization and Nature of Operations - Variable interest entity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>40103 - Disclosure - Organization and Nature of Operations - Balance sheet (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsBalanceSheetDetails</Role>
      <ShortName>Organization and Nature of Operations - Balance sheet (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>40104 - Disclosure - Organization and Nature of Operations - Net (loss)/income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsNetLossIncomeDetails</Role>
      <ShortName>Organization and Nature of Operations - Net (loss)/income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>40105 - Disclosure - Organization and Nature of Operations - Cash, cash equivalents and restricted cash (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsCashCashEquivalentsAndRestrictedCashDetails</Role>
      <ShortName>Organization and Nature of Operations - Cash, cash equivalents and restricted cash (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>40106 - Disclosure - Organization and Nature of Operations - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrganizationAndNatureOfOperationsAdditionalInformationDetails</Role>
      <ShortName>Organization and Nature of Operations - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>40201 - Disclosure - Summary of Significant Accounting Policies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>40202 - Disclosure - Summary of Significant Accounting Policies - Trade receivables and current expected credit losses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTradeReceivablesAndCurrentExpectedCreditLossesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Trade receivables and current expected credit losses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>40203 - Disclosure - Summary of Significant Accounting Policies - Derivative instruments and Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDerivativeInstrumentsAndInventoriesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Derivative instruments and Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>40204 - Disclosure - Summary of Significant Accounting Policies - Property, plant and equipment, net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPropertyPlantAndEquipmentNetDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Property, plant and equipment, net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>40205 - Disclosure - Summary of Significant Accounting Policies - Intangible assets, net, Impairment of long lived assets and intangible assets with indefinite lives and Employee benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesIntangibleAssetsNetImpairmentOfLongLivedAssetsAndIntangibleAssetsWithIndefiniteLivesAndEmployeeBenefitsDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Intangible assets, net, Impairment of long lived assets and intangible assets with indefinite lives and Employee benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>40206 - Disclosure - Summary of Significant Accounting Policies - Product warranties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesProductWarrantiesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Product warranties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>40207 - Disclosure - Summary of Significant Accounting Policies - Product warranties, current and non-current and Revenue recognition, government grants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesProductWarrantiesCurrentAndNonCurrentAndRevenueRecognitionGovernmentGrantsDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Product warranties, current and non-current and Revenue recognition, government grants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>40208 - Disclosure - Summary of Significant Accounting Policies - Leases and Segment reporting (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesLeasesAndSegmentReportingDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Leases and Segment reporting (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>40209 - Disclosure - Summary of Significant Accounting Policies - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>40401 - Disclosure - Concentration and Risks (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConcentrationAndRisksDetails</Role>
      <ShortName>Concentration and Risks (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureConcentrationAndRisks</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Acquisition of Chongqing Zhizao and Changzhou Huixiang (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAcquisitionOfChongqingZhizaoAndChangzhouHuixiangDetails</Role>
      <ShortName>Acquisition of Chongqing Zhizao and Changzhou Huixiang (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureAcquisitionOfChongqingZhizaoAndChangzhouHuixiang</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>40502 - Disclosure - Acquisition of Chongqing Zhizao and Changzhou Huixiang - Disposal agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAcquisitionOfChongqingZhizaoAndChangzhouHuixiangDisposalAgreementDetails</Role>
      <ShortName>Acquisition of Chongqing Zhizao and Changzhou Huixiang - Disposal agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>40503 - Disclosure - Acquisition of Chongqing Zhizao and Changzhou Huixiang - Acquisition of Changzhou Huixiang (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAcquisitionOfChongqingZhizaoAndChangzhouHuixiangAcquisitionOfChangzhouHuixiangDetails</Role>
      <ShortName>Acquisition of Chongqing Zhizao and Changzhou Huixiang - Acquisition of Changzhou Huixiang (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Trade receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeReceivablesDetails</Role>
      <ShortName>Trade receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTradeReceivablesTables</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>40701 - Disclosure - Inventories (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureInventoriesDetails</Role>
      <ShortName>Inventories (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureInventoriesTables</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Property, Plant and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosurePropertyPlantAndEquipmentNetDetails</Role>
      <ShortName>Property, Plant and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosurePropertyPlantAndEquipmentNetTables</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Intangible Assets, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureIntangibleAssetsNetDetails</Role>
      <ShortName>Intangible Assets, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureIntangibleAssetsNetTables</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>40902 - Disclosure - Intangible Assets, Net - Amortization expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureIntangibleAssetsNetAmortizationExpensesDetails</Role>
      <ShortName>Intangible Assets, Net - Amortization expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Leases - Components of lease expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesComponentsOfLeaseExpensesDetails</Role>
      <ShortName>Leases - Components of lease expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>41002 - Disclosure - Leases - Supplemental cash flows information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesSupplementalCashFlowsInformationDetails</Role>
      <ShortName>Leases - Supplemental cash flows information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>41003 - Disclosure - Leases - Supplemental balance sheet information - Operating lease (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesSupplementalBalanceSheetInformationOperatingLeaseDetails</Role>
      <ShortName>Leases - Supplemental balance sheet information - Operating lease (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>41005 - Disclosure - Leases - Weighted-average remaining lease term and discount rate (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesWeightedAverageRemainingLeaseTermAndDiscountRateDetails</Role>
      <ShortName>Leases - Weighted-average remaining lease term and discount rate (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>41006 - Disclosure - Leases - Maturities of lease liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesDetails</Role>
      <ShortName>Leases - Maturities of lease liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>41007 - Disclosure - Leases - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLeasesAdditionalInformationDetails</Role>
      <ShortName>Leases - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Other Non-current Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOtherNonCurrentAssetsDetails</Role>
      <ShortName>Other Non-current Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureOtherNonCurrentAssetsTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>41201 - Disclosure - Long term Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLongTermInvestmentsDetails</Role>
      <ShortName>Long term Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureLongTermInvestmentsTables</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>41202 - Disclosure - Long-term Investments- Equity Method Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLongTermInvestmentsEquityMethodInvestmentsDetails</Role>
      <ShortName>Long-term Investments- Equity Method Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>41203 - Disclosure - Long-term Investments - Equity Security with Or without Readily Determinable Fair Values (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLongTermInvestmentsEquitySecurityWithOrWithoutReadilyDeterminableFairValuesDetails</Role>
      <ShortName>Long-term Investments - Equity Security with Or without Readily Determinable Fair Values (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>41301 - Disclosure - Short-term Borrowings and Long-term Borrowings - Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShortTermBorrowingsAndLongTermBorrowingsBorrowingsDetails</Role>
      <ShortName>Short-term Borrowings and Long-term Borrowings - Borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>41302 - Disclosure - Short-term Borrowings and Long-term Borrowings - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShortTermBorrowingsAndLongTermBorrowingsAdditionalInformationDetails</Role>
      <ShortName>Short-term Borrowings and Long-term Borrowings - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>41401 - Disclosure - Trade and Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeAndNotesPayableDetails</Role>
      <ShortName>Trade and Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTradeAndNotesPayableTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>41402 - Disclosure - Trade and Notes Payable - Aging Analysis Of Trade and Notes Payable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTradeAndNotesPayableAgingAnalysisOfTradeAndNotesPayableDetails</Role>
      <ShortName>Trade and Notes Payable - Aging Analysis Of Trade and Notes Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>41501 - Disclosure - Accruals and Other Current Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesDetails</Role>
      <ShortName>Accruals and Other Current Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureAccrualsAndOtherCurrentLiabilitiesTables</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>41601 - Disclosure - Revenue Disaggregation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRevenueDisaggregationDetails</Role>
      <ShortName>Revenue Disaggregation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureRevenueDisaggregationTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>41602 - Disclosure - Revenue Disaggregation - Revenue By Timing of Recognition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRevenueDisaggregationRevenueByTimingOfRecognitionDetails</Role>
      <ShortName>Revenue Disaggregation - Revenue By Timing of Recognition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>41701 - Disclosure - Deferred Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDeferredRevenueDetails</Role>
      <ShortName>Deferred Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureDeferredRevenueTables</ParentRole>
      <Position>104</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>41702 - Disclosure - Deferred Revenue - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDeferredRevenueAdditionalInformationDetails</Role>
      <ShortName>Deferred Revenue - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>41801 - Disclosure - Research and Development Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureResearchAndDevelopmentExpensesDetails</Role>
      <ShortName>Research and Development Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureResearchAndDevelopmentExpensesTables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>41901 - Disclosure - Selling, General and Administrative Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureSellingGeneralAndAdministrativeExpensesDetails</Role>
      <ShortName>Selling, General and Administrative Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureSellingGeneralAndAdministrativeExpensesTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>42001 - Disclosure - Discontinued Operations - Assets and liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperationsAssetsAndLiabilitiesDetails</Role>
      <ShortName>Discontinued Operations - Assets and liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>42002 - Disclosure - Discontinued Operations - Results of operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperationsResultsOfOperationsDetails</Role>
      <ShortName>Discontinued Operations - Results of operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>42003 - Disclosure - Discontinued Operations - Cash flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperationsCashFlowsDetails</Role>
      <ShortName>Discontinued Operations - Cash flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>42004 - Disclosure - Discontinued Operations - Gain on disposal of discontinued operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureDiscontinuedOperationsGainOnDisposalOfDiscontinuedOperationsDetails</Role>
      <ShortName>Discontinued Operations - Gain on disposal of discontinued operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>42101 - Disclosure - Ordinary Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureOrdinarySharesDetails</Role>
      <ShortName>Ordinary Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureOrdinaryShares</ParentRole>
      <Position>112</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>42201 - Disclosure - Convertible Redeemable Preferred Shares and Warrants - Issuances of convertible redeemable preferred shares and major rights, preferences and privileges of the Preferred Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrantsIssuancesOfConvertibleRedeemablePreferredSharesAndMajorRightsPreferencesAndPrivilegesOfPreferredSharesDetails</Role>
      <ShortName>Convertible Redeemable Preferred Shares and Warrants - Issuances of convertible redeemable preferred shares and major rights, preferences and privileges of the Preferred Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>42202 - Disclosure - Convertible Redeemable Preferred Shares and Warrants - Schedule of movement of the warrants and conversion feature derivative liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrantsScheduleOfMovementOfWarrantsAndConversionFeatureDerivativeLiabilitiesDetails</Role>
      <ShortName>Convertible Redeemable Preferred Shares and Warrants - Schedule of movement of the warrants and conversion feature derivative liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>42203 - Disclosure - Convertible Redeemable Preferred Shares and Warrants - Convertible redeemable preferred shares activities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureConvertibleRedeemablePreferredSharesAndWarrantsConvertibleRedeemablePreferredSharesActivitiesDetails</Role>
      <ShortName>Convertible Redeemable Preferred Shares and Warrants - Convertible redeemable preferred shares activities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>42301 - Disclosure - Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLossPerShareDetails</Role>
      <ShortName>Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureLossPerShareTables</ParentRole>
      <Position>116</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>42302 - Disclosure - Loss Per Share - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureLossPerShareAdditionalInformationDetails</Role>
      <ShortName>Loss Per Share - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>42401 - Disclosure - Share-based Compensation - Compensation expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationCompensationExpensesDetails</Role>
      <ShortName>Share-based Compensation - Compensation expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>118</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>42402 - Disclosure - Share-based Compensation - Schedule of stock option activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationScheduleOfStockOptionActivityDetails</Role>
      <ShortName>Share-based Compensation - Schedule of stock option activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>42403 - Disclosure - Share-based Compensation - Schedule of options fair value assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationScheduleOfOptionsFairValueAssumptionsDetails</Role>
      <ShortName>Share-based Compensation - Schedule of options fair value assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>42404 - Disclosure - Share-based Compensation - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationAdditionalInformationDetails</Role>
      <ShortName>Share-based Compensation - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>42405 - Disclosure - Share-based Compensation - RSU activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureShareBasedCompensationRsuActivityDetails</Role>
      <ShortName>Share-based Compensation - RSU activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>42501 - Disclosure - Taxation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationDetails</Role>
      <ShortName>Taxation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureTaxationTables</ParentRole>
      <Position>123</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>42502 - Disclosure - Taxation - Composition of income tax benefit (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationCompositionOfIncomeTaxBenefitDetails</Role>
      <ShortName>Taxation - Composition of income tax benefit (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>124</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>42503 - Disclosure - Taxation - Reconciliations of income tax expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationReconciliationsOfIncomeTaxExpensesDetails</Role>
      <ShortName>Taxation - Reconciliations of income tax expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>125</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>42504 - Disclosure - Taxation - Components of deferred tax assets (liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationComponentsOfDeferredTaxAssetsLiabilitiesDetails</Role>
      <ShortName>Taxation - Components of deferred tax assets (liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>126</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>42505 - Disclosure - Taxation - Movement of valuation allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureTaxationMovementOfValuationAllowanceDetails</Role>
      <ShortName>Taxation - Movement of valuation allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>127</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>42601 - Disclosure - Fair Value Measurement - Assets and liabilities measured at fair value on a recurring basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureFairValueMeasurementAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>Fair Value Measurement - Assets and liabilities measured at fair value on a recurring basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>128</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>42602 - Disclosure - Fair Value Measurement - Additional information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureFairValueMeasurementAdditionalInformationDetails</Role>
      <ShortName>Fair Value Measurement - Additional information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>129</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>42701 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureCommitmentsAndContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureCommitmentsAndContingenciesTables</ParentRole>
      <Position>130</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>42801 - Disclosure - Related Party Balances and Transactions - Significant related party transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRelatedPartyBalancesAndTransactionsSignificantRelatedPartyTransactionsDetails</Role>
      <ShortName>Related Party Balances and Transactions - Significant related party transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>131</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>42802 - Disclosure - Related Party Balances and Transactions - Significant related party balances (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRelatedPartyBalancesAndTransactionsSignificantRelatedPartyBalancesDetails</Role>
      <ShortName>Related Party Balances and Transactions - Significant related party balances (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>132</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>42901 - Disclosure - Restricted Net Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureRestrictedNetAssetsDetails</Role>
      <ShortName>Restricted Net Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.lixiang.com/role/DisclosureRestrictedNetAssets</ParentRole>
      <Position>133</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>43001 - Disclosure - Parent Company Only Condensed Financial Information - Condensed balance sheets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformationCondensedBalanceSheetsDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Condensed balance sheets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>134</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>43002 - Disclosure - Parent Company Only Condensed Financial Information - Condensed statements of comprehensive loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformationCondensedStatementsOfComprehensiveLossDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Condensed statements of comprehensive loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>135</Position>
    </Report>
    <Report instance="li-20221231x20f.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>43003 - Disclosure - Parent Company Only Condensed Financial Information - Condensed statements of cash flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.lixiang.com/role/DisclosureParentCompanyOnlyCondensedFinancialInformationCondensedStatementsOfCashFlowsDetails</Role>
      <ShortName>Parent Company Only Condensed Financial Information - Condensed statements of cash flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>136</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warning">[dq-0542-Deprecated-Concept] Concept DueToRelatedPartiesCurrent in us-gaap/2022 used in 15 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. li-20221231x20f.htm 184, 198, 254</Log>
    <Log type="Warning">[dq-0542-Deprecated-Concept] Concept DueFromRelatedPartiesCurrent in us-gaap/2022 used in 5 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. li-20221231x20f.htm 254</Log>
    <Log type="Warning">[dq-0542-Deprecated-Concept] Concept DueFromAffiliateCurrent in us-gaap/2022 used in 2 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. li-20221231x20f.htm 256</Log>
    <Log type="Warning">[ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 18 fact(s) appearing in ix:hidden were eligible for transformation: li:LesseeOperatingAndFinanceLeasesTermOfContract, us-gaap:CommonStockSharesOutstanding, us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners, us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1, us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1, us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage, us-gaap:TemporaryEquityParOrStatedValuePerShare -  li-20221231x20f.htm 9</Log>
    <Log type="Warning">[ix-0514-Hidden-Fact-Not-Referenced] WARN: 5 fact(s) appearing in ix:hidden were not referenced by any -sec-ix-hidden style property: us-gaap:CommitmentsAndContingencies, us-gaap:DerivativeGainStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration -  li-20221231x20f.htm 9</Log>
  </Logs>
  <InputFiles>
    <File doctype="20-F" original="li-20221231x20f.htm">li-20221231x20f.htm</File>
    <File>li-20221231.xsd</File>
    <File>li-20221231_cal.xml</File>
    <File>li-20221231_def.xml</File>
    <File>li-20221231_lab.xml</File>
    <File>li-20221231_pre.xml</File>
    <File>li-20221231xex12d1.htm</File>
    <File>li-20221231xex12d2.htm</File>
    <File>li-20221231xex13d1.htm</File>
    <File>li-20221231xex13d2.htm</File>
    <File>li-20221231xex15d1.htm</File>
    <File>li-20221231xex15d2.htm</File>
    <File>li-20221231xex15d3.htm</File>
    <File>li-20221231xex8d1.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>li-20221231x20f005.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="5">http://fasb.org/srt/2022</BaseTaxonomy>
    <BaseTaxonomy items="1716">http://fasb.org/us-gaap/2022</BaseTaxonomy>
    <BaseTaxonomy items="46">http://xbrl.sec.gov/dei/2022</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
