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Provisions and other non-current liabilities - Product liability, governmental investigations and other legal matters provision movements (Details) - Litigation and other legal matters - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of changes in other provisions [abstract]
January 1	$ 6	$ 206	$ 53
Additions to provisions	15	3	175
Cash payments	(13)	(201)	(21)
Releases of provisions	(4)	(2)	(1)
December 31	4	6	206
Less current portion	(4)	(6)	(206)
Non-current provisions for litigation and other legal matters at December 31	$ 0	$ 0	$ 0

X

- Definition

The amount recognised for new other provisions. [Refer: Other provisions]

+ References

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

- Definition

The amount of non-current provisions other than provisions for employee benefits. [Refer: Non-current provisions]

+ References

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- Definition

The amount of provisions other than provisions for employee benefits. [Refer: Provisions]

+ References

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- Definition

The amount of current provisions other than provisions for employee benefits. [Refer: Provisions]

+ References

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- Definition

The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions]

+ References

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- Definition

The amount reversed for unused other provisions. [Refer: Other provisions]

+ References

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