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Long-Term Obligations and Other Short-Term Borrowings Other Financing Arrangements (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Debt Instrument [Line Items]    
Other obligations $ 74 $ 67
Average amount outstanding 19  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 2,000  
Letter of Credit    
Debt Instrument [Line Items]    
Line of credit 1 1
Other Short-term Borrowings 0 0
Letter of Credit | Committed Receivables Sales Facility Program    
Debt Instrument [Line Items]    
Line of credit 31 31
Short Term Credit Facilities | Committed Receivables Sales Facility Program    
Debt Instrument [Line Items]    
Maximum borrowing capacity 1,000  
Commercial Paper    
Debt Instrument [Line Items]    
Maximum borrowing capacity 2,000  
Other Short-term Borrowings 0 $ 0
Committed Receivables Sales Facility Program    
Debt Instrument [Line Items]    
Other Short-term Borrowings $ 0