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Intangible Assets - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 01, 2016
Apr. 03, 2015
Mar. 28, 2014
Finite-Lived Intangible Assets [Line Items]      
Amortization expense $ 286 $ 374 $ 364
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]      
Fiscal 2017 283    
Fiscal 2018 236    
Fiscal 2019 210    
Fiscal 2020 185    
Fiscal 2021 139    
GIS      
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]      
Gain (loss) on disposition of intangible assets 31 53  
Outsourcing contract costs      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense 11 27 34
Network-related | GIS      
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]      
Consideration on Sale of Intangible Asset   53  
Cash consideration from sale of intangible assets   31  
Receivable from sale of intangible assets 7    
Software | Purchased software      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense 99 129 115
Software | Internally developed commercial software      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense 56 61 54
Software | Internally developed internal-use software      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense $ 9 $ 6 $ 2