XML 99 R81.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Property, Plant and Equipment, Net - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |
Depreciation charge | $ 1,464 | $ 1,113 | $ 952
Tax incentives and capital investment funding | 713 | 25 | 13
Reduction in depreciation charges due to public funding | 69 | 56 | 61
Capital investment grants | 711 | 95 |
Proceeds from capital grants and other contributions | 320 | 21 | 10
Proceeds from sale of tangible assets | 8 | 4 | 2
Impairment of long-lived assets | 0 | $ 0 | $ 0
Property, Plant and Equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capital investment grants | 38 |  |
Property, Plant and Equipment | France |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capital investment grants | 620 |  |
Silicon Carbide Substrates Plant Catania Italy |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Definitive long-lived assets | 131 |  |
Manufacturing Facilities Expansion in France |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Reduction in depreciation charges due to public funding | 12 |  |
Proceeds from capital grants and other contributions | $ 239 |  |

X
- Definition Capital investment funding. + References No definition available. + Details
Name: | stm_CapitalInvestmentFunding
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition capital investment gain + References No definition available. + Details
Name: | stm_CapitalInvestmentGrants
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Finite lived intangible assets transfer amount. + References No definition available. + Details
Name: | stm_FiniteLivedIntangibleAssetsTransferAmount
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Impairment of long lived assets. + References No definition available. + Details
Name: | stm_ImpairmentOfLongLivedAssets
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Proceeds From Capital Grants And Other Contributions + References No definition available. + Details
Name: | stm_ProceedsFromCapitalGrantsAndOtherContributions
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reduction in depreciation charges due to public funding. + References No definition available. + Details
Name: | stm_ReductionInDepreciationChargesDueToPublicFunding
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-12 + Details
Name: | us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_FR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | stm_PublicFundingProgramAxis=stm_SiliconCarbideSubstratesPlantCataniaItalyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | stm_PublicFundingProgramAxis=stm_ManufacturingFacilitiesExpansionInFranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |