Pension (Net Benefit Expense (Income)) (Details) - USD ($) $ in Millions	3 Months Ended
	May 01, 2021	May 02, 2020
Retirement Plans and Other Benefits [Abstract]
Service cost	$ 4	$ 4
Interest cost	4	5
Expected return on plan assets	(9)	(9)
Amortization of net loss (gain)	3	3
Net benefit expense (income)	$ 2	$ 3