Long-Term Obligations and Other Short-Term Borrowings Other Financing Arrangements (Details) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Other obligations	$ 86	$ 74
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