Retirement Plans (Fair Value Of Pension Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013
Fair value of pension investments	$ 75	$ 68
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	75	68
Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member]
Cash and cash equivalents	211	204
Fair value of pension investments	3,580	3,391
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Cash and cash equivalents	0	0
Fair value of pension investments	354	290
Pension Plan [Member] | Significant Observable Inputs (Level 2) [Member]
Cash and cash equivalents	211	204
Fair value of pension investments	2,678	2,507
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member]
Cash and cash equivalents	0	0
Fair value of pension investments	548	594
Pension Plan [Member] | Equity securities [Member] | International [Member]
Fair value of pension investments	748	818
Pension Plan [Member] | Equity securities [Member] | U.S. [Member]
Fair value of pension investments	834	832
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. [Member]
Fair value of pension investments	354	290
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | International [Member]
Fair value of pension investments	748	818
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | U.S. [Member]
Fair value of pension investments	480	542
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | International [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | U.S. Treasury bonds [Member]
Fair value of pension investments	221	136
Pension Plan [Member] | U.S. Treasury bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	221	136
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Other Government bonds [Member]
Fair value of pension investments	39	34
Pension Plan [Member] | Other Government bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Other Government bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	39	34
Pension Plan [Member] | Other Government bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Agency backed bonds [Member]
Fair value of pension investments	22	6
Pension Plan [Member] | Agency backed bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Agency backed bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	22	6
Pension Plan [Member] | Agency backed bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Corporate bonds [Member]
Fair value of pension investments	388	338
Pension Plan [Member] | Corporate bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Corporate bonds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	388	338
Pension Plan [Member] | Corporate bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member]
Fair value of pension investments	95	102
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	95	102
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Asset-backed securities [Member]
Fair value of pension investments	20	24
Pension Plan [Member] | Asset-backed securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Asset-backed securities [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	20	24
Pension Plan [Member] | Asset-backed securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Pooled funds [Member]
Fair value of pension investments	454	303
Pension Plan [Member] | Pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Pooled funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	454	303
Pension Plan [Member] | Pooled funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Real Estate [Member]
Fair value of pension investments	214	280
Pension Plan [Member] | Real Estate [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Real Estate [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Real Estate [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	214	280
Pension Plan [Member] | Hedge Funds [Member]
Fair value of pension investments	167	154
Pension Plan [Member] | Hedge Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Hedge Funds [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Hedge Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	167	154
Pension Plan [Member] | Private equity [Member]
Fair value of pension investments	167	160
Pension Plan [Member] | Private equity [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Private equity [Member] | Significant Observable Inputs (Level 2) [Member]
Fair value of pension investments	0	0
Pension Plan [Member] | Private equity [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension investments	$ 167	$ 160