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OTHER EXPENSE - Impairment reversal (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Impairment (reversals) charges | $ 3 | $ 2 | $ 5 | $ (87)
Non-current assets |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Impairment (reversals) charges | $ 3 | $ 2 | $ 5 | $ (87)

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- Definition The amount of impairment loss, impairment gain or reversal of impairment loss that is recognised in profit or loss in accordance with paragraph 5.5.8 of IFRS 9 and that arises from applying the impairment requirements in Section 5.5 of IFRS 9. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 82 -Subparagraph ba -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82_ba&doctype=Standard -URIDate 2021-03-24 + Details
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