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Financial Risk Management - Summary of Currency Derivatives Designated as Hedging Instruments (Detail) - Cash flow hedges [member] - Foreign exchange forward contracts [member] $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Disclosure Of Information About Terms And Conditions Of Hedging Instruments And How They Affect Future Cash Flows [Line Items]
Notional Amount (USD millions)	3,977
Maturity within 3 months [member]
Disclosure Of Information About Terms And Conditions Of Hedging Instruments And How They Affect Future Cash Flows [Line Items]
Notional Amount (USD millions)	961
Average forward rate (SEK/USD)	9.93
Maturity between 3 and 12 months [member]
Disclosure Of Information About Terms And Conditions Of Hedging Instruments And How They Affect Future Cash Flows [Line Items]
Notional Amount (USD millions)	1,082
Average forward rate (SEK/USD)	10.57
Longer than 1 year [member]
Disclosure Of Information About Terms And Conditions Of Hedging Instruments And How They Affect Future Cash Flows [Line Items]
Notional Amount (USD millions)	1,934
Average forward rate (SEK/USD)	10.19

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- Definition

The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The nominal amount of a hedging instrument. [Refer: Hedging instruments [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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