Significant Accounting Policies - Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Accounting Policies [Abstract]
Land	$ 109	$ 109
Building and improvements	1,482	1,413
Machinery, equipment, and other	2,751	2,603
Construction in progress	441	283
Total property, plant, and equipment	4,783	4,408
Accumulated depreciation and amortization	(2,467)	(2,231)
Property, plant, and equipment, net	$ 2,316	$ 2,177