XML 87 R64.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Financial Instruments and Risk Management (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Fair Value Disclosures [Abstract] |
Notional Amounts of Outstanding Derivative Instruments | As of December 31, 2024, the Company had the following outstanding derivative instruments that were entered into to hedge Euro-denominated and Singapore dollar-denominated forecasted transactions:
In millions of Euros |  | Notional amount for hedge on forecasted R&D and other operating expenses |  | Notional amount for hedge on forecasted manufacturing costs
Forward contracts |  | 581 |  | 1,063
Currency collars |  | 247 |  | 380
In millions of Singapore dollars |  | Notional amount for hedge on forecasted R&D and other operating expenses |  | Notional amount for hedge on forecasted manufacturing costs
Forward contracts |  | — |  | 168
Fair Value of Derivative Instruments | Information on fair value of derivative instruments and their location in the consolidated balance sheets as of December 31, 2024 and December 31, 2023 is presented in the table below:
|  |  |  | As of December 31, 2024 |  | As of December 31, 2023
Asset Derivatives |  | Balance sheet classification |  | Fair value |  | Fair value
Derivatives designated as a hedge: |  |  |  |  |  |
Foreign exchange forward contracts |  | Other current assets |  | — |  | 46
Foreign exchange forward contracts |  | Other non-current assets |  | — |  | 2
Currency collars |  | Other current assets |  | — |  | 7
Total derivatives designated as a hedge: |  |  |  | — |  | 55
Derivatives not designated as a hedge: |  |  |  |  |  |
Foreign exchange forward contracts |  | Other current assets |  | 10 |  | 5
Total derivatives not designated as a hedge: |  |  |  | 10 |  | 5
Total Derivatives |  |  |  | 10 |  | 60
|  |  |  | As of December 31, 2024 |  | As of December 31, 2023
Liability Derivatives |  | Balance sheet classification |  | Fair value |  | Fair value
Derivatives designated as a hedge: |  |  |  |  |  |
Foreign exchange forward contracts |  | Other payables and accrued liabilities |  | (66) |  | (2)
Foreign exchange forward contracts |  | Other non-current liabilities |  | (3) |  | —
Currency collars |  | Other payables and accrued liabilities |  | (15) |  | —
Total derivatives designated as a hedge: |  |  |  | (84) |  | (2)
Derivatives not designated as a hedge: |  |  |  |  |  |
Foreign exchange forward contracts |  | Other payables and accrued liabilities |  | (5) |  | (2)
Total derivatives not designated as a hedge: |  |  |  | (5) |  | (2)
Total Derivatives |  |  |  | (89) |  | (4)
Effect on Consolidated Statements of Income of Derivative Instruments | The effect of derivative instruments designated as cash flow hedge on the consolidated statements of income for the year ended December 31, 2024 and December 31, 2023 and on the “Accumulated other comprehensive income (loss)” (“AOCI”) as reported in the consolidated statements of equity as of December 31, 2024 and December 31, 2023 is presented in the table below:
|  | Gain (loss) deferred in OCI on derivative |  | Location of gain (loss) |  | Gain (loss) reclassified from OCI into earnings
|  | December 31, 2024 |  | December 31, 2023 |  | reclassified from OCI into earnings |  | December 31, 2024 |  | December 31, 2023
Foreign exchange forward contracts |  | (54) |  |  | 35 |  |  | Cost of sales |  | 13 |  |  | 1 |
Foreign exchange forward contracts |  | (7) |  |  | 4 |  |  | Selling, general and administrative expenses |  | 1 |  |  | 1 |
Foreign exchange forward contracts |  | (17) |  |  | 10 |  |  | Research and development expenses |  | 2 |  |  | 2 |
Currency collars |  | (15) |  |  | 5 |  |  | Cost of sales |  | — |  |  | — |
Currency collars |  | (2) |  |  | 1 |  |  | Selling, general and administrative expenses |  | — |  |  | — |
Currency collars |  | (4) |  |  | 2 |  |  | Research and development expenses |  | — |  |  | 1 |
Total |  | (99) |  |  | 57 |  |  |  |  | 16 |  |  | 5 |
Effect on Consolidated Statements of Income of Derivative Instruments Not Designated as Hedge | The effect on the consolidated statements of income for the year ended December 31, 2024 and December 31, 2023 of derivative instruments not designated as a hedge is presented in the table below:
|  | Location of gain |  | Gain (loss) recognized in earnings
|  | (loss) recognized in earnings |  | December 31, 2024 |  | December 31, 2023
Foreign exchange forward contracts |  | Other income and expenses, net |  | 9 |  | 2
Total |  |  |  | 9 |  | 2
Schedule of Financial Assets (Liabilities) Measured at Fair Value on Recurring Basis | The table below details financial assets (liabilities) measured at fair value on a recurring basis as of December 31, 2024:
|  | Fair Value Measurements using
|  | December 31, 2024 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Marketable securities – U.S. Treasury debt securities |  | 2,452 |  |  | 2,452 |  |  | — |  |  | — |
Equity securities measured at fair value through earnings |  | 88 |  |  | 88 |  |  | — |  |  | — |
Derivative assets designated as cash flow hedge |  | — |  |  | — |  |  | — |  |  | — |
Derivative assets not designated as cash flow hedge |  | 10 |  |  | — |  |  | 10 |  |  | — |
Derivative liabilities designated as cash flow hedge |  | (84) |  |  | — |  |  | (84) |  |  | — |
Derivative liabilities not designated as cash flow hedge |  | (5) |  |  | — |  |  | (5) |  |  | — |
Contingent consideration on business acquisition |  | (15) |  |  | — |  |  | — |  |  | (15) |
Total |  | 2,446 |  |  | 2,540 |  |  | (79) |  |  | (15) |
The table below details financial assets (liabilities) measured at fair value on a recurring basis as of December 31, 2023:
|  | Fair Value Measurements using
|  | December 31, 2023 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Marketable securities – U.S. Treasury debt securities |  | 1,635 |  |  | 1,635 |  |  | — |  |  | — |
Equity securities measured at fair value through earnings |  | 31 |  |  | 31 |  |  | — |  |  | — |
Derivative assets designated as cash flow hedge |  | 55 |  |  | — |  |  | 55 |  |  | — |
Derivative assets not designated as cash flow hedge |  | 5 |  |  | — |  |  | 5 |  |  | — |
Derivative liabilities designated as cash flow hedge |  | (2) |  |  | — |  |  | (2) |  |  | — |
Derivative liabilities not designated as cash flow hedge |  | (2) |  |  | — |  |  | (2) |  |  | — |
Contingent consideration on business acquisitions |  | (20) |  |  | — |  |  | — |  |  | (20) |
Total |  | 1,702 |  |  | 1,666 |  |  | 56 |  |  | (20) |
Schedule of Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) | For liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3), the reconciliation between January 1, 2023 and December 31, 2023 is presented as follows:
|  | Fair Value Measurements using Significant Unobservable Inputs (Level 3)
January 1, 2023 |  | 31 |
Changes in fair value measurement |  | (12) |
Currency translation adjustment |  | 1 |
December 31, 2023 |  | 20 |
Amount of total gains (losses) for the period included in earnings attributable to liabilities still held at the reporting date |  | 12 |
Fair Value Information on Other Financial Assets and Liabilities Recorded at Amortized Cost | The following table includes additional fair value information on financial assets and liabilities as of December 31, 2024 and 2023:
|  | 2024 |  | 2023
|  | Level |  | Carrying Amount |  | Estimated Fair Value |  | Carrying Amount |  | Estimated Fair Value
Cash equivalents (1) |  | 1 |  | 1,611 |  |  | 1,611 |  |  | 2,879 |  |  | 2,879 |
Short-term, deposits |  | 1 |  | 1,450 |  |  | 1,450 |  |  | 1,226 |  |  | 1,226 |
Long-term debt |  |  |  |  |  |  |  |  |  |
– Bank loans (including current portion) |  | 2 |  | 1,389 |  |  | 1,389 |  |  | 1,366 |  |  | 1,366 |
– Finance leases (including current portion) |  | 2 |  | 66 |  |  | 66 |  |  | 65 |  |  | 65 |
– Senior unsecured convertible bonds issued on August 4, 2020 (2) |  | 1 |  | 1,498 |  |  | 1,442 |  |  | 1,496 |  |  | 1,814 |
(1) Cash equivalents primarily correspond to deposits at call with banks and money market funds. (2) The carrying amount as of December 31, 2024, of the senior unsecured convertible bonds as reported above, corresponds to the nominal value of the bonds, net of $2 million unamortized debt issuance costs. The fair value represented the market price of the bonds trading on the Frankfurt Stock Exchange.
Schedule of Methodologies Used to Estimate Fair Value | The methodologies used to estimate fair value are as follows:
Components | Methodology used to estimate fair value
Debt securities classified as available-for-sale | Quoted market prices for identical instruments
Foreign exchange forward contracts, currency options and collars | Quoted market prices for similar instruments
Equity securities measured at fair value through earnings | Quoted market prices for identical instruments
Equity securities carried at cost as a measurement alternative | Valuation of the underlying investments on a new round of third-party financing or upon liquidation
Long-term debt and current portion of long-term debt | Future cash flows on a borrowing-by-borrowing basis and discounting these future cash flows using the Company's incremental borrowing rates for similar types of borrowing arrangements. For convertible bonds, the fair value represents the market price of the bonds trading on the Frankfurt Stock Exchange
Cash and cash equivalents, short-term deposits, accounts receivable, short-term borrowings, and accounts payable | The carrying amounts reflected in the consolidated financial statements are considered as reasonable estimates of fair value due to the relatively short period of time between the origination of the instruments and their expected realization.

X
- Definition Schedule of methodologies used to estimate fair value. + References No definition available. + Details
Name: | stm_ScheduleOfMethodologiesUsedToEstimateFairValueTaleTextBlock
Namespace Prefix: | stm_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) using recurring unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
Name: | us-gaap_ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
Name: | us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration