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Balance Sheet Account Details - Summary of Short-term Investments (Details) - USD ($)
$ in Millions
Apr. 01, 2018
Apr. 02, 2017
Available-for-sale securities:    
Amortized Cost $ 816 $ 923
Gross Unrealized Losses 3 3
Estimated Fair Value 813 920
Debt securities in government sponsored entities    
Available-for-sale securities:    
Amortized Cost 38 67
Gross Unrealized Losses 0 0
Estimated Fair Value 38 67
Corporate debt securities    
Available-for-sale securities:    
Amortized Cost 375 423
Gross Unrealized Losses 2 2
Estimated Fair Value 373 421
U.S. Treasury securities    
Available-for-sale securities:    
Amortized Cost 403 433
Gross Unrealized Losses 1 1
Estimated Fair Value $ 402 $ 432