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EMPLOYEE BENEFIT PLANS (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Defined Benefit Plan Disclosure [Line Items]        
Net periodic benefit cost (benefit) $ 0 $ 0 $ (1) $ (1)
Retirement Income Plans [Member] | UNITED STATES        
Defined Benefit Plan Disclosure [Line Items]        
Discretionary contributions $ 6 $ 7 $ 10 $ 10