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INCOME TAXES - Deferred Tax Balances and Movement (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |  |
Net deferred income tax liabilities | $ (4,508) | $ (3,346) |
Net Income | (54) | (28) |
Other Comprehensive Income | (125) | (142) | $ (97)
Other | 20 | 32 |
Acquisitions/ Dispositions | 179 | (1,024) |
Net deferred income tax liabilities | (4,488) | (4,508) | (3,346)
Deferred income tax assets related to non-capital losses and capital losses |  |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |  |
Net deferred income tax liabilities | 397 | 394 |
Net Income | 506 | 40 |
Other Comprehensive Income | 0 | 0 |
Other | 146 | (22) |
Acquisitions/ Dispositions | (50) | (15) |
Net deferred income tax liabilities | 999 | 397 | 394
Deferred income tax liabilities related to differences in tax and book basis, net |  |  |
Reconciliation of changes in deferred tax liability (asset) [abstract] |  |  |
Net deferred income tax liabilities | (4,905) | (3,740) |
Net Income | (560) | (68) |
Other Comprehensive Income | (125) | (142) |
Other | (126) | 54 |
Acquisitions/ Dispositions | 229 | (1,009) |
Net deferred income tax liabilities | $ (5,487) | $ (4,905) | $ (3,740)

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_90&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) resulting from business combinations. [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) 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. [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81&doctype=Standard -URIDate 2020-01-01 + Details
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