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LEASES (Components of Lease Cost Schedule) (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Leases [Abstract]    
Operating lease cost $ 73 $ 73
Finance lease cost:    
Amortization of right-of-use assets 4 4
Interest on lease liabilities 0 0
Total finance lease cost 4 4
Variable lease cost 39 39
Short term lease cost $ 2 $ 1