Share Based Compensation (SARs Assumptions) (Details) (USD $)	9 Months Ended
Oct. 29, 2011	Oct. 30, 2010
The weighted-average fair value and assumptions (stock appreciation rights)
Granted, Weighted-Average Grant Date Fair Value	$ 54.38
Chairman and Chief Executive Officer [Member] \| Stock Appreciation Rights (SARs) [Member]
The weighted-average fair value and assumptions (stock appreciation rights)
Grant date market price	$ 56.86	$ 44.86
Exercise price	$ 56.86	$ 44.86
Granted, Weighted-Average Grant Date Fair Value	$ 22.99	$ 16.96
Assumptions:
Price volatility	53.00%	50.00%
Expected term (Years)	4.6	4.7
Risk-free interest rate	1.80%	2.30%
Dividend yield	1.50%	2.10%
Executive Officers (excluding Chairman and Chief Executive Officer) [Member] \| Stock Appreciation Rights (SARs) [Member]
The weighted-average fair value and assumptions (stock appreciation rights)
Grant date market price	$ 54.87	$ 44.86
Exercise price	$ 54.87	$ 44.86
Granted, Weighted-Average Grant Date Fair Value	$ 22.29	$ 16.99
Assumptions:
Price volatility	53.00%	51.00%
Expected term (Years)	4.7	4.5
Risk-free interest rate	2.00%	2.30%
Dividend yield	1.60%	2.10%
All Other Associates [Member] \| Stock Appreciation Rights (SARs) [Member]
The weighted-average fair value and assumptions (stock appreciation rights)
Grant date market price	$ 54.93	$ 44.28
Exercise price	$ 54.93	$ 44.28
Granted, Weighted-Average Grant Date Fair Value	$ 21.89	$ 16.49
Assumptions:
Price volatility	55.00%	53.00%
Expected term (Years)	4.1	4.1
Risk-free interest rate	1.70%	2.00%
Dividend yield	1.60%	2.10%

Share based compensation arrangement by stock appreciation rights grants in period weighted average exercise price.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options grants in period weighted average grant date market price.

+ References

No definition available.

+ Details

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph c(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

+ Details

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- Definition

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.D.2)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph e(2)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

+ Details

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- Definition

The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term.

+ References

+ Details

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