Retirement Plans (Fair Value Of Pension Plan Assets) (Details) - USD ($) $ in Millions	Feb. 01, 2020	Feb. 02, 2019
Fair value of pension plan assets	$ 132	$ 101
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	34	27
Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	98	74
Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member]
Fair value of pension plan assets	3,414	3,066
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	2,157	1,896
Pension Plan [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	778	660
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Money market securities [Member]
Fair value of pension plan assets		1
Pension Plan [Member] | Money market securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets		0
Pension Plan [Member] | Money market securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets		1
Pension Plan [Member] | Money market securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets		0
Pension Plan [Member] | Money market pooled funds [Member]
Fair value of pension plan assets	37	33
Pension Plan [Member] | Money market pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	37	33
Pension Plan [Member] | Money market pooled funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Money market pooled funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | UNITED STATES
Fair value of pension plan assets	122	117
Pension Plan [Member] | Equity securities [Member] | United States pooled funds [Member]
Fair value of pension plan assets	474	398
Pension Plan [Member] | Equity securities [Member] | International [Member]
Fair value of pension plan assets	357	347
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | UNITED STATES
Fair value of pension plan assets	122	117
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | United States pooled funds [Member]
Fair value of pension plan assets	474	398
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International [Member]
Fair value of pension plan assets	82	78
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | UNITED STATES
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | United States pooled funds [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | International [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | UNITED STATES
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | United States pooled funds [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | International [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | U.S. Treasury bonds [Member]
Fair value of pension plan assets	58	52
Pension Plan [Member] | U.S. Treasury bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	58	52
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Other Government bonds [Member]
Fair value of pension plan assets	61	53
Pension Plan [Member] | Other Government bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Other Government bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	61	53
Pension Plan [Member] | Other Government bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Agency backed bonds [Member]
Fair value of pension plan assets	13	11
Pension Plan [Member] | Agency backed bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Agency backed bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	13	11
Pension Plan [Member] | Agency backed bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Corporate bonds [Member]
Fair value of pension plan assets	615	513
Pension Plan [Member] | Corporate bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Corporate bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	615	513
Pension Plan [Member] | Corporate bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member]
Fair value of pension plan assets	23	15
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	23	15
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Asset-backed securities [Member]
Fair value of pension plan assets	10	11
Pension Plan [Member] | Asset-backed securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Asset-backed securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	10	11
Pension Plan [Member] | Asset-backed securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Pooled funds [Member]
Fair value of pension plan assets	1,442	1,270
Pension Plan [Member] | Pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	1,442	1,270
Pension Plan [Member] | Pooled funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Pooled funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Real Estate [Member]
Fair value of pension plan assets	37	56
Pension Plan [Member] | Real Estate [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Real Estate [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Real Estate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Private equity [Member]
Fair value of pension plan assets	167	185
Pension Plan [Member] | Private equity [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Private equity [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Private equity [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Derivatives in a positive position [Member]
Fair value of pension plan assets	4	6
Pension Plan [Member] | Derivatives in a positive position [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Derivatives in a positive position [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	4	6
Pension Plan [Member] | Derivatives in a positive position [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Derivatives in a negative position [Member]
Fair value of pension plan assets	(6)	(2)
Pension Plan [Member] | Derivatives in a negative position [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Derivatives in a negative position [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	(6)	(2)
Pension Plan [Member] | Derivatives in a negative position [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	$ 0	$ 0