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Related Parties (Details) - CSRA - Affiliated entity
$ in Millions
12 Months Ended
Apr. 01, 2016
USD ($)
Commercial agreements  
Related Party Transaction [Line Items]  
Accounts receivable, period to be collected 30 days
Separation and post-Separation relationship with CSRA agreements  
Related Party Transaction [Line Items]  
Expenses related to related parties $ 1
Revenue | Separation and post-Separation relationship with CSRA agreements  
Related Party Transaction [Line Items]  
Revenue from related parties 35
Receivables, net of allowance for doubtful accounts | Certain computer hardware lease and commercial agreements  
Related Party Transaction [Line Items]  
Receivables from related parties $ 20