Fair Value Measurements (Summary of Fair Value Remeasurements of Property and Equipment Impairments) (Details) - Fair Value, Measurements, Nonrecurring [Member] - Level 3 [Member] - SG&A [Member] - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Nov. 02, 2019	Nov. 03, 2018	Nov. 02, 2019	Nov. 03, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairments		$ 10	$ 3	$ 21	$ 8
Property, Plant and Equipment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairments		9	$ 3	19	$ 8
Finite-Lived Intangible Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairments	[1]	$ 1		$ 2

[1] Represents activity related to operating lease assets post-adoption of ASC 842, Leases.