Balance Sheet Components - Schedule of Accrued Compensation and Benefits and Share-based Compensation (Details) - USD ($) $ in Millions	Sep. 30, 2024	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued bonus, commissions, and cash awards	$ 11	$ 190
Accrued vacation and sabbatical	84	83
Accrued salaries and fringe benefits	9	25
Total accrued compensation and benefits	$ 104	$ 298

Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 8
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-8

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant