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Restructuring and Impairment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment, net		$ 195	$ 53	$ 42
Accelerated depreciation		104	17
Non-cash restructuring and impairment charges		92	34	28
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs		50
2025 Efficiency Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment, net		163	2
Accelerated depreciation		86
Professional fees		21
2025 Efficiency Plan \| Europe
Restructuring Cost and Reserve [Line Items]
Restructuring costs		19
Professional fees		2
Richmond and Fairmont Plants
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 53
Changzhou Plant
Restructuring Cost and Reserve [Line Items]
Restructuring costs		42
Fire
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation		17
Non-cash restructuring and impairment charges		$ 36	$ 0	$ 0
Employees
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Restructuring and impairment, net	Restructuring and impairment, net
Restructuring charges		$ 91	$ 19
Employees \| Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring costs		31
Professional fees		19
Employees \| 2025 Efficiency Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		60
Employees \| 2025 Efficiency Plan \| Europe
Restructuring Cost and Reserve [Line Items]
Restructuring costs		17
Facility Closing
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring and impairment charges			$ 17
Other Current Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities, short-term	$ 43	$ 43