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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 7,686		$ 7,662
Less accumulated depreciation and amortization	(4,979)		(4,857)
Property, plant and equipment, net	2,707		2,805
Depreciation and amortization of property, plant and equipment	170	$ 170
Land and improvements
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 71		$ 71
Property, plant and equipment, useful life (in years)	10 years		10 years
Buildings and improvements
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 1,018		$ 1,010
Buildings and improvements \| Minimum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	10 years		10 years
Buildings and improvements \| Maximum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	40 years		40 years
Machinery and equipment
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 1,407		$ 1,391
Machinery and equipment \| Minimum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	3 years		3 years
Machinery and equipment \| Maximum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	20 years		20 years
Computer hardware and software
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 2,127		$ 2,098
Computer hardware and software \| Minimum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	2 years		2 years
Computer hardware and software \| Maximum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	10 years		10 years
Furniture and fixtures
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 140		$ 142
Furniture and fixtures \| Minimum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	5 years		5 years
Furniture and fixtures \| Maximum
Property, Plant, and Equipment
Property, plant and equipment, useful life (in years)	10 years		10 years
Leasehold improvements
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 2,690		$ 2,687
Construction in progress
Property, Plant, and Equipment
Property, plant and equipment, gross	$ 233		$ 263