Costs and expenses by nature - Selling and administrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Costs And Expenses By Nature
Personnel	$ 185	$ 170	$ 168
Services	124	107	114
Selling	86	80	81
Depreciation and amortization	41	42	49
Advertisement	22	27	17
Other	57	55	62
Total	$ 515	$ 481	$ 491

The amount of expense arising from advertising.

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

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- Definition

The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of expense relating to selling activities of the entity.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The amount of expense relating to selling, general and administrative activities of the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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- References

No definition available.

+ Details

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- Definition

The amount of depreciation and amortization expense in selling and administrative expenses. Depreciation and amortization are the systematic allocations of depreciable amounts of assets over their useful lives

+ References

No definition available.

+ Details

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- Definition

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment included in selling and administrative expenses.

+ References

No definition available.

+ Details

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- Definition

The services expense included in selling and administrative expenses.

+ References

No definition available.

+ Details

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