| **Balance Sheet Details - Accrued And Other Current Liabilities Schedule (Details) - USD ($) $ in Millions** | Dec. 31, 2024 | Mar. 31, 2024 |
|--------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Balance Sheet Related Disclosures [Abstract]**                                                             |          |          |  |
| Accounts payable                                                                                             | $ 81          | $ 110         |  |
| Accrued compensation and benefits                                                                            | 390           | 476           |  |
| Accrued royalties                                                                                            | 196           | 189           |  |
| Deferred net revenue (other)                                                                                 | 92            | 59            |  |
| Operating lease liabilities                                                                                  | 66            | 66            |  |
| Other accrued expenses                                                                                       | 316           | 286           |  |
| Sales returns and price protection reserves                                                                  | 157           | 90            |  |
| Accounts payable, accrued, and other current liabilities                                                     | $ 1,298       | $ 1,276       | [1] |
|                                                                                                              |
| [1]Derived from audited Consolidated Financial Statements.                                                   |

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Deferred net revenue, other
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Sales Returns And Price Protection Reserves
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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.
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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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| - Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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| - Definition
Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
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| - Definition
Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.
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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.
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