Retirement Plans (Fair Value Of Pension Plan Assets) (Details) - Pension Plans Defined Benefit Excluding Interest and Dividend Receivables and Pending Investment Purchases and Sales [Member] - USD ($) $ in Millions	Jan. 29, 2022	Jan. 30, 2021
Fair value of pension plan assets	$ 2,872	$ 3,248
Level 2 [Member] | Short term investments [Member]
Fair value of pension plan assets	10	3
Level 2 [Member] | U.S. Treasury bonds [Member]
Fair value of pension plan assets	121	270
Level 2 [Member] | Other Government bonds [Member]
Fair value of pension plan assets	74	63
Level 2 [Member] | Corporate bonds [Member]
Fair value of pension plan assets	1,877	1,609
Level 2 [Member] | Mortgage-backed securities and forwards [Member]
Fair value of pension plan assets	10	11
Level 2 [Member] | Asset-backed securities [Member]
Fair value of pension plan assets	1	1
Level 2 [Member] | Derivativesinanegativeposition
Fair value of pension plan assets	(1)	0
Level 2 [Member] | Derivatives in a positive position [Member]
Fair value of pension plan assets	12	8
Level 1 [Member] | Money market pooled funds [Member]
Fair value of pension plan assets	206	136
Level 1 [Member] | Equity Securities, International Pooled Funds [Member]
Fair value of pension plan assets	31	37
Level 1 [Member] | Equity Securities, U.S. Pooled Funds [Member]
Fair value of pension plan assets	77	356
Level 1 [Member] | Derivativesinanegativeposition
Fair value of pension plan assets	0	(4)
Level 1 [Member] | Pooled funds [Member]
Fair value of pension plan assets	72	271
Fair Value Measured at Net Asset Value Per Share [Member] | Pooled funds [Member]
Fair value of pension plan assets	164	296
Fair Value Measured at Net Asset Value Per Share [Member] | Real Estate [Member]
Fair value of pension plan assets	32	31
Fair Value Measured at Net Asset Value Per Share [Member] | Private equity [Member]
Fair value of pension plan assets	$ 186	$ 160