Retirement Plans and Other Benefits (Net Benefit Expense (Income)) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Defined Benefit Plan Disclosure [Line Items]
Net benefit expense (income)	$ 2	$ 1
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	20	18	$ 17
Interest cost	27	29	25
Expected return on plan assets	(37)	(38)	(37)
Amortization of net loss (gain)	12	12	13
Net benefit expense (income)	22	21	18
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost			1
Amortization of net loss (gain)	(1)	(1)	(2)
Net benefit expense (income)	$ (1)	$ (1)	$ (1)