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v3.24.0.1

Other Payables and Accrued Liabilities - Additional Information (Detail) $ in Millions | Dec. 31, 2023 USD ($)
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Payables and Accruals [Abstract] |
Provision for penalties | $ 0

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- Definition Provision for penalties. + References No definition available. + Details
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Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_PayablesAndAccrualsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration