Restructuring, Impairment, and Related Charges, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Restructuring, impairment, and related charges, net	Restructuring, impairment, and related charges, net	Restructuring, impairment, and related charges, net
Restructuring charges	$ 344	$ 115	$ 209
Restructuring, impairment, and related charges, net	286	115	209
Long-lived asset impairment charges, before tax	0	0	0
Restructuring, Impairment, And Related Charges, Net
Restructuring Cost and Reserve [Line Items]
Restructuring, impairment, and related charges, net	286
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring, impairment, and related charges, net	58
Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring charges	298	$ 45	$ 60
Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization \| Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring, anticipated total charges	650
Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization \| Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring, anticipated total charges	$ 700

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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