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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Jun. 30, 2021
Income Tax Contingency [Line Items]          
Effective rate for income taxes (as a percent) 18.50% 21.00% 21.10% 18.50%  
Basis-point change from the prior-year period (as a percent) (2.50%)   2.60%    
Gross unrecognized tax benefits $ 63   $ 63   $ 62
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate 53   53    
Gross interest and penalty accrued 1   5    
Total gross accrued interest and penalties related to unrecognized tax benefits $ 15   $ 15   $ 14
Fiscal Year 2020 and 2019 | Internal Revenue Service (IRS)          
Income Tax Contingency [Line Items]          
Tax cuts and jobs act, change in enacted rate after application of GILTI (as a percent)   (0.30%)   (2.20%)