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SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions			12 Months Ended
	Feb. 06, 2020	Feb. 07, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of non-adjusting events after reporting period [line items]
Disposal of investments in associates and joint ventures			$ 135	$ 1,289	$ 0
Chilean toll roads
Disclosure of non-adjusting events after reporting period [line items]
Ownership and voting Interest		17.00%
Disposal of investments in associates and joint ventures		$ 365
Disposal of equity method investment | Chilean toll roads
Disclosure of non-adjusting events after reporting period [line items]
Ownership and voting Interest	17.00%
Disposal of investments in associates and joint ventures	$ 170

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_16&doctype=Standard
-URIDate 2019-03-27

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