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INCOME TAXES (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2019
Mar. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Income Tax Contingency [Line Items]              
Effective tax rate on earnings from continuing operations 21.80% 25.50%   20.80% 19.00%    
Federal statutory tax rate             28.10%
Total Tax Cuts and Jobs Act of 2017, provisional income tax benefit     $ 81        
Scenario, Forecast [Member]              
Income Tax Contingency [Line Items]              
Federal statutory tax rate           21.00%