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INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Reconciliation of the beginning and ending amount of gross unrecognized tax benefits [Roll Forward]      
Beginning of the year balance of gross unrecognized tax benefits $ 61 $ 62 $ 70
Gross amounts of increases as a result of tax positions taken during a prior period 9 12 9
Gross amounts of decreases as a result of tax positions taken during a prior period (5) (6) (10)
Gross amounts of increases as a result of tax positions taken during the current period 4 7 8
Amounts of decreases in unrecognized tax benefits relating to settlements with taxing authorities (4) (12) (13)
Reductions to unrecognized tax benefits as a result of a lapse of the applicable statutes of limitations (2) (2) (2)
End of year balance of gross unrecognized tax benefits $ 63 $ 61 $ 62