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EMPLOYEE BENEFIT PLANS (Components of the Net Cost of Retirement Income (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Defined Benefit Plan Disclosure [Line Items]    
Total $ 0 $ 0
Weighted average long-term expected rate or return on plan assets 3.00%  
Other Postretirement Benefits Plan | Retirement Income Plans    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 0 0
Interest cost 4 4
Expected return on plan assets (4) (4)
Amortization of unrecognized items 2 3
Total $ 2 $ 3