Summary of Significant Accounting Policies (Costs Included as Net Advertising Expenses) (Details) - Advertising Expense [Member] - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Component Of Operating Other Cost And Expense [Line Items]
Advertising expenses	$ 111	$ 108	$ 118
Digital advertising expense	96	96	84
Cooperative advertising reimbursements	(25)	(20)	(20)
Net advertising expense	$ 182	$ 184	$ 182