Financial instruments - Additional information (Details) $ in Millions	6 Months Ended
Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Disclosure of detailed information about borrowings [line items]
Contingent amount	$ 790
Non-current financial assets at fair value	763	$ 652
Collateral amount	$ 385
Collateral amount increase percentage	20.00%
Measured at amortized cost or cost \| Long-term note receivable and other financial assets
Disclosure of detailed information about borrowings [line items]
Financial assets	$ 184
Non-current financial assets at fair value	183
Current financial assets at fair value	$ 1
Minimum
Disclosure of detailed information about borrowings [line items]
Probability of success, contingent consideration	0
Maximum
Disclosure of detailed information about borrowings [line items]
Probability of success, contingent consideration	0.95
Senior Notes Due 2026, 2028, 2029, 2030, 2032, 2049 and 2052
Disclosure of detailed information about borrowings [line items]
Financial liabilities, at fair value	$ 4,392	4,240
Senior Notes Due 2026, 2028, 2029, 2030, 2032, 2049 and 2052 \| Measured at amortized cost or cost
Disclosure of detailed information about borrowings [line items]
Financial liabilities, at fair value and amortized cost	$ 4,607	$ 4,538

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No definition available.

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The amount of current financial assets. [Refer: Financial assets]

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The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Classes of financial instruments [domain]; Financial liabilities]

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- Definition

The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Classes of contingent liabilities [domain]; Financial assets]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Classes of financial instruments [domain]; Financial assets; Derivatives [member]]

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- Definition

The amount of non-current financial assets. [Refer: Financial assets]

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