Financial Instruments and Fair Value Measurements - Contractual Maturities of Debt Investments (Detail) $ in Millions	Jan. 29, 2021 USD ($)
Investments Debt And Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 95
Due after one year through five years, Amortized Cost	44
Due after five years through ten years, Amortized Cost	5
Total, Amortized Cost	144
Due in one year or less, Estimated Fair Value	95
Due after one year through five years, Estimated Fair Value	45
Due after five years through ten years, Estimated Fair Value	5
Total, Estimated Fair Value	$ 145