|**Balance Sheet Details (Tables)**                              | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                  
|--------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|**Balance Sheet Related Disclosures [Abstract]**                |                                                                                                                                                                                                                                                                                                                                                                                                  
|Property And Equipment, Net Schedule                            | Property and equipment, net, as of March 31, 2022 and 2021 consisted of (in millions):As of March 31,20222021Computer, equipment and software$853$808Buildings375370Leasehold improvements202172Equipment, furniture and fixtures, and other9593Land6666Construction in progress30121,6211,521Less: accumulated depreciation(1,071)(1,030)Property and equipment, net$550$491                    
|                                                                |                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | As of March 31,                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | 2022                                                                                                                                                                                                                                                                                                                                                                                             
|Computer, equipment and software                                | $                                                                                                                                                                                                                                                                                                                                                                                                
|Buildings                                                       | 375                                                                                                                                                                                                                                                                                                                                                                                              
|Leasehold improvements                                          | 202                                                                                                                                                                                                                                                                                                                                                                                              
|Equipment, furniture and fixtures, and other                    | 95                                                                                                                                                                                                                                                                                                                                                                                               
|Land                                                            | 66                                                                                                                                                                                                                                                                                                                                                                                               
|Construction in progress                                        | 30                                                                                                                                                                                                                                                                                                                                                                                               
|                                                                | 1,621                                                                                                                                                                                                                                                                                                                                                                                            
|Less: accumulated depreciation                                  | (1,071)                                                                                                                                                                                                                                                                                                                                                                                          
|Property and equipment, net                                     | $                                                                                                                                                                                                                                                                                                                                                                                                
|Accrued And Other Current Liabilities Schedule                  | Accrued and other current liabilities as of March 31, 2022 and 2021 consisted of (in millions):As of March 31,20222021Other accrued expenses$304$351Accrued compensation and benefits500494Accrued royalties203210Sales returns and price protection reserves144115Deferred net revenue (other)15695Operating lease liabilities (SeeNote 13)8176Accrued and other current liabilities$1,388$1,341
|                                                                |                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | As of March 31,                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | 2022                                                                                                                                                                                                                                                                                                                                                                                             
|Other accrued expenses                                          | $                                                                                                                                                                                                                                                                                                                                                                                                
|Accrued compensation and benefits                               | 500                                                                                                                                                                                                                                                                                                                                                                                              
|Accrued royalties                                               | 203                                                                                                                                                                                                                                                                                                                                                                                              
|Sales returns and price protection reserves                     | 144                                                                                                                                                                                                                                                                                                                                                                                              
|                                                                |                                                                                                                                                                                                                                                                                                                                                                                                  
|Deferred net revenue (other)                                    | 156                                                                                                                                                                                                                                                                                                                                                                                              
|Operating lease liabilities (SeeNote 13)                        | 81                                                                                                                                                                                                                                                                                                                                                                                               
|Accrued and other current liabilities                           | $                                                                                                                                                                                                                                                                                                                                                                                                
|Deferred Revenue, by Arrangement, Disclosure [Table Text Block] | Deferred net revenue as of March 31, 2022 and 2021, consisted of (in millions):As of March 31,20222021Deferred net revenue (online-enabled games)$2,024$1,527Deferred net revenue (other)15695Deferred net revenue (noncurrent)6814Total deferred net revenue$2,248$1,636                                                                                                                        
|                                                                |                                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | As of March 31,                                                                                                                                                                                                                                                                                                                                                                                  
|                                                                | 2022                                                                                                                                                                                                                                                                                                                                                                                             
|Deferred net revenue (online-enabled games)                     | $                                                                                                                                                                                                                                                                                                                                                                                                
|Deferred net revenue (other)                                    | 156                                                                                                                                                                                                                                                                                                                                                                                              
|Deferred net revenue (noncurrent)                               | 68                                                                                                                                                                                                                                                                                                                                                                                               
|Total deferred net revenue                                      | $                                                                                                                                                                                                                                                                                                                                                                                                

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