XML 133 R110.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Shareholders' Equity - Summary of Nonvested Share Activity (Details) - shares |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 20, 2024 | Mar. 22, 2023 | Mar. 23, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Awards vested (in shares) |  |  |  | (5,542,756) | (6,502,300) | (6,587,002)
2021 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Awards granted (in shares) |  |  | 6,540,475 |  |  |
Awards cancelled on failed vesting conditions (in shares) |  |  | (980,746) |  |  |
2022 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Awards granted (in shares) |  | 6,531,345 |  |  |  |
2023 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Awards granted (in shares) | 5,449,135 |  |  |  |  |
2024 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Awards granted (in shares) |  |  |  | 7,627,070 |  |
Employees |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Number of shares, beginning balance (in shares) |  |  |  | 11,721,387 |  |
Awards granted (in shares) |  |  |  | 7,627,070 |  |
Awards forfeited/waived (in shares) |  |  |  | (192,392) |  |
Awards cancelled on failed vesting conditions (in shares) |  |  |  | 0 |  |
Awards vested (in shares) |  |  |  | (5,542,756) |  |
Number of shares, ending balance (in shares) |  |  |  | 13,613,309 | 11,721,387 |
Employees | 2021 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Number of shares, beginning balance (in shares) |  |  |  | 1,950,243 |  |
Awards granted (in shares) |  |  |  | 0 |  |
Awards forfeited/waived (in shares) |  |  |  | (8,612) |  |
Awards cancelled on failed vesting conditions (in shares) |  |  |  | 0 |  |
Awards vested (in shares) |  |  |  | (1,941,631) |  |
Number of shares, ending balance (in shares) |  |  |  | 0 | 1,950,243 |
Employees | 2022 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Number of shares, beginning balance (in shares) |  |  |  | 4,350,739 |  |
Awards granted (in shares) |  |  |  | 0 |  |
Awards forfeited/waived (in shares) |  |  |  | (38,730) |  |
Awards cancelled on failed vesting conditions (in shares) |  |  |  | 0 |  |
Awards vested (in shares) |  |  |  | (2,032,697) |  |
Number of shares, ending balance (in shares) |  |  |  | 2,279,312 | 4,350,739 |
Employees | 2023 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Number of shares, beginning balance (in shares) |  |  |  | 5,420,405 |  |
Awards granted (in shares) |  |  |  | 0 |  |
Awards forfeited/waived (in shares) |  |  |  | (117,240) |  |
Awards cancelled on failed vesting conditions (in shares) |  |  |  | 0 |  |
Awards vested (in shares) |  |  |  | (1,566,662) |  |
Number of shares, ending balance (in shares) |  |  |  | 3,736,503 | 5,420,405 |
Employees | 2024 Employee Plan |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |  |  |
Number of shares, beginning balance (in shares) |  |  |  | 0 |  |
Awards granted (in shares) |  |  |  | 7,627,070 |  |
Awards forfeited/waived (in shares) |  |  |  | (27,810) |  |
Awards cancelled on failed vesting conditions (in shares) |  |  |  | 0 |  |
Awards vested (in shares) |  |  |  | (1,766) |  |
Number of shares, ending balance (in shares) |  |  |  | 7,597,494 | 0 |

X
- Definition Share based compensation arrangement by share based payment award equity instruments other than options cancelled on failed vesting conditions in period. + References No definition available. + Details
Name: | stm_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledOnFailedVestingConditionsInPeriod
Namespace Prefix: | stm_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=stm_EmployeePlanTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=stm_EmployeePlanTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=stm_EmployeePlanTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=stm_EmployeePlanTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=stm_EmployeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |