INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Reconciliation of changes in intangible assets other than goodwill [abstract]
Beginning Balance	$ 5,523
Ending Balance	11,663	$ 5,523
Gross Carrying Amount
Reconciliation of changes in intangible assets other than goodwill [abstract]
Beginning Balance	6,001	3,360
Additions, net	101	153
Disposals	(32)	(8)
Acquisitions through business combinations	6,545	2,911
Assets reclassified as held for sale	(436)	0
Net foreign currency exchange differences	75	(415)
Ending Balance	12,254	6,001
Accumulated Amortization and impairment
Reconciliation of changes in intangible assets other than goodwill [abstract]
Beginning Balance	(478)	(266)
Amortization expense	(224)	(249)
Disposals	23	4
Assets reclassified as held for sale	84	0
Net foreign currency exchange differences	4	33
Ending Balance	$ (591)	$ (478)

The increase in intangible assets other than goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2018-01-01
-Paragraph 118
-Subparagraph e
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_i&doctype=Standard
-URIDate 2018-03-16

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The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill]

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- Definition

The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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The decrease in intangible assets other than goodwill resulting from classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2018-01-01
-Paragraph 118
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_e_ii&doctype=Standard
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The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill]

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The increase (decrease) in intangible assets other than goodwill 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: Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2018-01-01
-Paragraph 118
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The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]

+ References

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