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SIGNIFICANT ACCOUNTING POLICIES Recently Issued Accounting Standards (Details)
$ in Millions
Mar. 31, 2018
USD ($)
Accounting Standards Update 2014-09 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets $ 53
Accounting Standards Update 2016-16 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets (39)
Accounting Standards Update 2017-12 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets $ 2