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Restructuring, Impairment, and Related Charges, Net - Narrative (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, impairment, and related charges, net		$ 245	$ 344	$ 115
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Cost of Product and Service Sold, Restructuring, impairment, and related charges, net	Cost of Product and Service Sold, Restructuring, impairment, and related charges, net	Cost of Product and Service Sold, Restructuring, impairment, and related charges, net
Restructuring, impairment, and related charges, net		$ 245	$ 286	$ 115
Long-lived asset impairment charges, before tax		0
Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring, impairment, and related charges, net		170	298
Minimum \| Employee severance and other employee-related costs, facility and other exit-related costs including long-lived asset impairments
Restructuring Cost and Reserve [Line Items]
Restructuring, impairment, and related charges, net	$ 200
Minimum \| Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring, anticipated total charges	650	650
Maximum \| Employee severance and other employee-related costs, facility and other exit-related costs including long-lived asset impairments
Restructuring Cost and Reserve [Line Items]
Restructuring, impairment, and related charges, net	250
Maximum \| Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring, anticipated total charges	$ 700	$ 700
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