Revenue - Schedule of Revenue by Geographical Location (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 4,007	$ 3,233	$ 2,679
United States
Disaggregation of Revenue [Line Items]
Revenue	1,716	1,413	1,088
PRC
Disaggregation of Revenue [Line Items]
Revenue	749	697	657
Taiwan
Disaggregation of Revenue [Line Items]
Revenue	629	522	359
Republic of Korea
Disaggregation of Revenue [Line Items]
Revenue	324	308	241
Other countries
Disaggregation of Revenue [Line Items]
Revenue	$ 589	$ 293	$ 334

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details