Financial Instruments and Fair Value Measurements - Contractual Maturities of Debt Investments (Detail) $ in Millions	Oct. 30, 2015 USD ($)
Investments Debt And Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 867
Due after one year through five years, Amortized Cost	1,871
Total, Amortized Cost	2,738
Due in one year or less, Estimated Fair Value	868
Due after one year through five years, Estimated Fair Value	1,871
Total, Estimated Fair Value	$ 2,739