INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018
Income Tax Contingency [Line Items]
Effective tax rate on earnings from continuing operations	21.50%		31.30%
Federal statutory tax rate					28.10%
Remeasurement of deferred tax liabilities		$ 60
Provisional on-time transition tax expense on accumulated foreign earnings, net of applicable foreign tax credits		7
Benefit related to current year taxable income		28
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%