Pension (Net Benefit Expense (Income)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Pension [Abstract]
Service cost	$ 3	$ 5	$ 7	$ 10
Interest cost	6	6	11	13
Expected return on plan assets	(10)	(9)	(19)	(18)
Amortization of net loss (gain)	3	3	6	6
Net benefit expense (income)	$ 2	$ 5	$ 5	$ 11