Retirement Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Total Retirement Expense	$ 17	$ 3	$ 33	$ 11
Pension Plan [Member]
Service cost	0	1	0	1
Interest cost	15	13	29	25
Expected return on assets	(31)	(43)	(62)	(83)
Recognition of net actuarial (gain) loss	4	9	8	17
Total net periodic benefit cost	(12)	(20)	(25)	(40)
Supplementary Retirement Plan [Member]
Interest cost	3	3	7	6
Recognition of net actuarial (gain) loss	3	3	6	6
Total net periodic benefit cost	6	6	13	12
Other Postretirement Benefit Plan [Member]
Interest cost	1	0	1	0
Recognition of net actuarial (gain) loss	(2)	(2)	(3)	(3)
Total net periodic benefit cost	(1)	(2)	(2)	(3)
401(k) Qualified Plan [Member] | Defined Contribution Plan [Member]
Defined contribution plan, cost	$ 23	$ 17	$ 45	$ 39