Retirement Plans (Fair Value Of Pension Plan Assets) (Details) - USD ($) $ in Millions	Feb. 02, 2019	Feb. 03, 2018
Fair value of pension plan assets	$ 101	$ 117
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	27	25
Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	74	92
Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member]
Fair value of pension plan assets	3,066	3,447
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	1,896	2,097
Pension Plan [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	660	686
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	5
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	0
Pension Plan [Member] | Money market securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension plan assets	1	5
Pension Plan [Member] | Money market securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	0	0
Pension Plan [Member] | Money market pooled funds [Member]
Fair value of pension plan assets	33	35
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	33	35
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	117	157
Pension Plan [Member] | Equity securities [Member] | United States pooled funds [Member]
Fair value of pension plan assets	398	481
Pension Plan [Member] | Equity securities [Member] | International [Member]
Fair value of pension plan assets	347	447
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	117	157
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	398	481
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	78	114
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	52	44
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	52	44
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	53	59
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	53	59
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	11	13
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	11	13
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	513	538
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	513	538
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	15	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	15	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	11	6
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	11	6
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	1,270	1,310
Pension Plan [Member] | Pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension plan assets	1,270	1,310
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	56	148
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	185	183
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	6	9
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	6	9
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	(2)	(3)
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	(2)	(3)
Pension Plan [Member] | Derivatives in a negative position [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension plan assets	$ 0	$ 0