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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 |  |

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