Retirement Plans (Net Periodic Benefit Cost) (Details) - Pension Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 5	$ 5
Interest cost	66	103	109
Expected return on assets	(183)	(191)	(206)
Amortization of net actuarial loss	40	29	28
Amortization of prior service credit	0	0	0
Total net periodic benefit cost	(73)	(54)	(64)
Settlement charges	74	45	78
Net actuarial (gain) loss	(178)	51	223
Amortization of net actuarial loss	(40)	(29)	(28)
Settlement charges	(74)	(45)	(78)
Total recognized in other comprehensive income	(292)	(23)	117
Total recognized in net periodic benefit cost and other comprehensive income	$ (291)	$ (32)	$ 131