Significant Accounting Policies - Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Accounting Policies [Abstract]
Land	$ 104	$ 109
Building and improvements	1,433	1,482
Machinery, equipment, and other	2,772	2,751
Construction in progress	722	441
Total property, plant, and equipment	5,031	4,783
Accumulated depreciation and amortization	(2,529)	(2,467)
Property, plant, and equipment, net	$ 2,502	$ 2,316

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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