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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Reserves deducted in the balance sheet from the assets to which they apply:      
Change in opening balance $ (5,585) $ (5,590) $ (6,091)
Cumulative effect of adoption of new accounting standards | Accounting Standards Update 2016-13      
Reserves deducted in the balance sheet from the assets to which they apply:      
Change in opening balance     4
Allowance for doubtful accounts and customer deductions:      
Reserves deducted in the balance sheet from the assets to which they apply:      
Balance at Beginning of Period 27 40 63
Additions Charged to Costs and Expenses 21 5 (5)
Additions Charged to Other Accounts 0 0 4
Deductions 18 18 22
Balance at End of Period 30 27 40
Deferred tax valuation allowance:      
Reserves deducted in the balance sheet from the assets to which they apply:      
Balance at Beginning of Period 185 168 107
Additions Charged to Costs and Expenses 36 41 61
Additions Charged to Other Accounts 0 0 1
Deductions 21 24 1
Balance at End of Period $ 200 $ 185 $ 168