Retirement Plans and Other Benefits (Net Benefit Expense (Income)) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 18	$ 17	$ 16
Interest cost	29	25	26
Expected return on plan assets	(38)	(37)	(37)
Amortization of net loss (gain)	12	13	14
Net benefit expense (income)	21	18	19
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost		1	1
Amortization of net loss (gain)	(1)	(2)	(2)
Net benefit expense (income)	$ (1)	$ (1)	$ (1)