Fair Value Measurements and Concentrations of Credit Risk (Financial Assets Measured at Fair Value on a Recurring and Nonrecurring Basis) (Details) - USD ($) $ in Millions	Jan. 28, 2023	Jan. 29, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable equity and debt securities	$ 35	$ 39
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable equity and debt securities	35	39
Significant Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable equity and debt securities	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Marketable equity and debt securities	$ 0	$ 0