Fair Value Measurements (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Aug. 01, 2020	Feb. 01, 2020	Aug. 03, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Carrying value	$ 1,283	$ 1,239	$ 1,228
Long-term debt [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Carrying value	1,283	1,239	1,228
Level 2 [Member] | Long-term debt [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 1,386	$ 1,322	$ 1,295