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Basis of Presentation and Summary of Significant Accounting Policies (Narrative, Property and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Property, Plant and Equipment [Line Items]
Depreciation	$ 488	$ 470	$ 441
Interest rate on long-term projects (approximates weighted-average on long-term obligations)	5.00%
Building and Improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Building and Improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	39 years
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	20 years
Capitalized software held for internal use \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Capitalized software held for internal use \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	7 years
Furniture and fixtures \| Minimum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	7 years