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INCOME TAXES - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Income Tax Examination [Line Items]      
Effective income tax rate 52.20% 32.10%  
Increase in income tax expense $ 229,100    
Income tax expense 339,906 $ 110,837 $ 154,937
Increase for higher net income including impact of foreign rates 76,400    
Increase (decrease) due to CARES Act 7,000    
Decrease for change in unrecognized tax benefits (66,900)    
Decrease of internal reorganizations (34,100)    
Increase (decrease) due to Base Erosion and Anti-Abuse Tax (BEAT) (33,200)    
Increase in change in valuation allowance (5,700)    
Decrease due to permanent tax differences 3,100    
Differences in tax filings being higher than estimates (3,100)    
Investment tax credit 59,300    
Unrecognized tax benefits of deferred tax assets offset by valuation allowance 6,700    
Net unrecognized tax benefit, excluding portion offset by valuation allowance 29,900 180,000  
Possible decrease in tax expense in next 12 months 3,800    
Provision for deferred income tax liabilities 27,500 $ 24,800  
Domestic      
Income Tax Examination [Line Items]      
Operating loss carryforwards 305,700    
Foreign      
Income Tax Examination [Line Items]      
Operating loss carryforwards 413,000    
Operating loss carryforwards, no expiry 73,100    
Internal Revenue Service (IRS)      
Income Tax Examination [Line Items]      
IRS settlement charge 300,500    
Decrease in future withholding taxes 90,000    
Income taxes paid 299,600    
Total outstanding settlement amount 900    
Internal Revenue Service (IRS) | Domestic      
Income Tax Examination [Line Items]      
Income taxes paid 288,600    
Internal Revenue Service (IRS) | Foreign      
Income Tax Examination [Line Items]      
Effect of IRS settlement $ 300,500