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Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Property, Plant, and Equipment [Line Items]
Allowance for credit losses	$ 7	$ 10
Equity method investments	$ 282	$ 280
Buildings
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	40 years
Land Improvements and Building Equipment
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	15 years
Machinery and Equipment \| Minimum
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	7 years
Machinery and Equipment \| Maximum
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	10 years
Vehicles and Office Equipment \| Minimum
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	3 years
Vehicles and Office Equipment \| Maximum
Property, Plant, and Equipment [Line Items]
Estimated useful lives of assets (in years)	8 years