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Segment Information (Narrative) (Details)
$ in Millions
12 Months Ended
Mar. 31, 2023
USD ($)
segment
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Revenue, Major Customer and Geographic Information [Line Items]      
Number of reportable segments | segment 1    
Net revenue $ 7,426 $ 6,991 $ 5,629
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 32.00% 33.00% 36.00%
Net revenue | Customer Concentration Risk | Microsoft      
Revenue, Major Customer and Geographic Information [Line Items]      
Entity wide revenue by major customer percent of revenue 16.00% 16.00% 18.00%
Switzerland Entity      
Revenue, Major Customer and Geographic Information [Line Items]      
Net revenue $ 4,085 $ 3,423 $ 2,731
Disclosure on geographic areas, revenue from external customers attributed to foreign countries, percentage 55.00% 49.00% 49.00%
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%