Other items from operating activities - Loans and advances, valuation allowance (Details) - Loans and advances - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in the valuation allowance on loans and advances
Valuation allowance as of the beginning of the period	$ (257)	$ (273)	$ (266)
Increases	(27)	(6)	(30)
Decreases	11	14	15
Currency translation adjustment and other variations	18	8	8
Valuation allowance as of the end of the period	$ (255)	$ (257)	$ (273)

The amount of additional allowance for credit losses of financial assets recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2022-03-24

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Period Type:	duration

- Definition

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b
-URIDate 2022-03-24

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- References

No definition available.

+ Details

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- Definition

The increase (decrease) in an allowance account for credit losses of financial assets resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity, and from changes that the entity does not separately disclose in the same statement or note.

+ References

No definition available.

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- Definition

The decrease in an allowance account for credit losses of financial assets resulting from the utilisation of the allowance and reversal of impairment.

+ References

No definition available.

+ Details

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