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INVESTMENT PROPERTIES - Schedule of Changes in Fair Value of Investment Properties (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of detailed information about investment property [line items] |  |
Fair value, beginning of year | $ 96,782 | $ 96,686
Additions | 13,558 | 8,180
Acquisitions through business combinations, investment property |  | 0
Right-of-use assets | 4,100 | 3,300
Dispositions | (15,017) | (9,284)
Fair value changes | 5,073 | (269)
Foreign currency translation and other | (1,118) | 1,276
Fair value, end of year2 | 100,865 | 96,782
Total |  |
Disclosure of detailed information about investment property [line items] |  |
Investment properties | 988 |
Investment property [member] | Increase (decrease) due to changes in accounting policy required by IFRSs |  |
Disclosure of detailed information about investment property [line items] |  |
Right-of-use assets | 599 | 193
Property, plant and equipment [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Right-of-use assets | 7,000 | 6,700
Property, plant and equipment [member] | Increase (decrease) due to changes in accounting policy required by IFRSs |  |
Disclosure of detailed information about investment property [line items] |  |
Right-of-use assets | $ 94,900 | $ 90,400

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- Definition The increase in investment property resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of additions to investment property resulting from acquisitions. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_i&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in investment property resulting from disposals. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_c&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The gains (losses) from changes in the fair value of investment property. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_d&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in investment property resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_vi&doctype=Standard -URIDate 2021-03-24 + Details
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