SCOPE OF CONSOLIDATION - Narrative Assets Held for Sale (Details) - USD ($) $ in Millions		12 Months Ended
Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Of Non-current Assets Held For Sale And Discontinued Operations [Line Items]
Impairment		$ (218)	$ (133)	$ 1,927
Assets held for sale	$ 4,329	$ 0	$ 4,329
Cost of sales
Disclosure Of Non-current Assets Held For Sale And Discontinued Operations [Line Items]
Impairment	$ 331

The amount of impairment loss or reversal of impairment loss recognised in profit or loss. [Refer: Impairment loss recognised in profit or loss; Reversal of impairment loss recognised in profit or loss]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale]

+ References

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