Retirement Plans (Retirement Expenses) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Defined Benefit Plan Disclosure [Line Items]
Total retirement expense	$ 22	$ 74	$ 64
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	(3)	(2)	(1)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	(73)	(54)	(64)
Supplemental Employee Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Total net periodic benefit cost	26	30	31
Defined Contribution Qualified Plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost	68	96	96
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost	$ 1	$ 2	$ 1