Segment and Revenue Information - Narrative (Details) $ in Millions	12 Months Ended
Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)
Revenue, Major Customer and Geographic Information [Line Items]
Number of reportable segments \| segment	1
Net revenue	$ 7,463	$ 7,562	$ 7,426
Entity wide revenue by major customer percent of revenue did not exceed ten percent	10.00%
Net revenue \| Customer Concentration Risk \| Sony
Revenue, Major Customer and Geographic Information [Line Items]
Entity wide revenue by major customer percent of revenue	39.00%	37.00%	32.00%
Net revenue \| Customer Concentration Risk \| Microsoft
Revenue, Major Customer and Geographic Information [Line Items]
Entity wide revenue by major customer percent of revenue	17.00%	16.00%	16.00%
Switzerland Entity
Revenue, Major Customer and Geographic Information [Line Items]
Net revenue	$ 4,279	$ 4,374	$ 4,085
Disclosure on geographic areas, revenue from external customers attributed to foreign countries, percentage	57.00%	58.00%	55.00%
North American Entity
Revenue, Major Customer and Geographic Information [Line Items]
Disclosure on geographic areas, revenue from external customers attributed to entity's country of domicile	99.00%

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