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| <link:schemaRef xlink:href="blk25-20240328.xsd" xlink:type="simple"/> |
| <context id="duration_2024-03-28_to_2024-03-28"> |
| | <entity> |
| | | <identifier scheme="http://www.sec.gov/CIK"> 0001364742 </identifier> |
| | | </entity> |
| | <period> |
| | | <startDate> 2024-03-28 </startDate> |
| | | <endDate> 2024-03-28 </endDate> |
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| <context id="duration_2024-03-28_to_2024-03-28_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember"> |
| | <entity> |
| | | <identifier scheme="http://www.sec.gov/CIK"> 0001364742 </identifier> |
| | | <segment> |
| <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis"> us-gaap:CommonStockMember </xbrldi:explicitMember> |
| </segment> |
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| | <period> |
| | | <startDate> 2024-03-28 </startDate> |
| | | <endDate> 2024-03-28 </endDate> |
| | | </period> |
| | </context> |
| <context id="duration_2024-03-28_to_2024-03-28_us-gaap-StatementClassOfStockAxis_us-gaap-DeferrableNotesMember"> |
| | <entity> |
| | | <identifier scheme="http://www.sec.gov/CIK"> 0001364742 </identifier> |
| | | <segment> |
| <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis"> us-gaap:DeferrableNotesMember </xbrldi:explicitMember> |
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| | <period> |
| | | <startDate> 2024-03-28 </startDate> |
| | | <endDate> 2024-03-28 </endDate> |
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| | </context> |
| <dei:EntityRegistrantName contextRef="duration_2024-03-28_to_2024-03-28" id="Hidden_dei_EntityRegistrantName"> BlackRock Inc. </dei:EntityRegistrantName> |
| <dei:EntityIncorporationStateCountryCode contextRef="duration_2024-03-28_to_2024-03-28" id="Hidden_dei_EntityIncorporationStateCountryCode"> DE </dei:EntityIncorporationStateCountryCode> |
| <dei:EntityAddressStateOrProvince contextRef="duration_2024-03-28_to_2024-03-28" id="Hidden_dei_EntityAddressStateOrProvince"> NY </dei:EntityAddressStateOrProvince> |
| <dei:AmendmentFlag contextRef="duration_2024-03-28_to_2024-03-28" id="ixv-278"> false </dei:AmendmentFlag> |
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| <dei:SolicitingMaterial contextRef="duration_2024-03-28_to_2024-03-28" id="ixv-315"> true </dei:SolicitingMaterial> |
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| <dei:EntityEmergingGrowthCompany contextRef="duration_2024-03-28_to_2024-03-28" id="ixv-324"> false </dei:EntityEmergingGrowthCompany> |
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