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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481203/810-10-50-5A

+ Details

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- Details

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- Details

Name:	srt_ConsolidatedEntitiesAxis=rivn_RivianAndVWGroupTechnologyLLCMember
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- Details

Name:	dei_LegalEntityAxis=rivn_VolkswagenGroupTechnologiesMember
Namespace Prefix:
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- Details

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VARIABLE INTEREST ENTITIES (Details) $ in Millions	1 Months Ended	12 Months Ended
VARIABLE INTEREST ENTITIES (Details) $ in Millions	Nov. 30, 2024 USD ($) director	Dec. 31, 2024 USD ($) chiefExecutiveOfficer	Dec. 31, 2023 USD ($)
Variable Interest Entity [Line Items]
Equity interest (as percent)		50.00%
Funding of 50% interest in Rivian and VW Group Technology, LLC	$ 92	$ 92
Development services fees payable (as percent)	0.25
Total assets		15,410	$ 16,778
Liabilities		$ 8,848	$ 7,637
Volkswagen Group
Variable Interest Entity [Line Items]
Equity interest (as percent)		50.00%
Rivian and VW Group Technology, LLC
Variable Interest Entity [Line Items]
Total assets		$ 250
Liabilities		$ 155
Volkswagen Group Technologies
Variable Interest Entity [Line Items]
Development services fees payable (as percent)	0.75
Development services fees payable	$ 100
Rivian and VW Group Technology, LLC
Variable Interest Entity [Line Items]
Number of directors \| director	4
Number of chief executive officer \| chiefExecutiveOfficer		2