PAYROLL EXPENSE (Details) $ in Millions	12 Months Ended
Dec. 31, 2018 USD ($) employee	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Analysis of income and expense [abstract]
Partnership, number of key employees or directors \| employee	0
Payroll expense	$ 588	$ 519	$ 309
Payroll Expense [Line Items]
Directors' remuneration expense	$ 1	$ 1	$ 1

A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 9
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_9&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_WagesAndSalaries
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration