Financial Instruments (Schedule of Gain/(Loss) Included in AOCI for Derivative Instruments Designated as Cash Flow Hedges) (Details) - Cash Flow Hedging - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Forward Contracts [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	$ 0	$ 0	$ 16
Commodity Contracts
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	0	0	1
Foreign Currency Contracts
Derivative [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	$ (2)	$ 3	$ 5