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Segmentation of key figures - Net sales by region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disclosure of geographical areas [line items]
Net sales	$ 2,577	$ 2,482	$ 5,028	$ 4,926
Percentage of entity's revenue (as a percent)	100.00%	100.00%	100.00%	100.00%
United States
Disclosure of geographical areas [line items]
Net sales	$ 1,160	$ 1,141	$ 2,297	$ 2,290
Percentage of entity's revenue (as a percent)	45.00%	46.00%	46.00%	46.00%
International
Disclosure of geographical areas [line items]
Net sales	$ 1,417	$ 1,341	$ 2,731	$ 2,636
Percentage of entity's revenue (as a percent)	55.00%	54.00%	54.00%	54.00%

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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.

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- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

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

The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

+ References

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