The range of the number of shares that may be earned based on the results of performance conditions.

No definition available.

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- Definition

The maximum number of shares that can be issued under the performance unit award.

+ References

No definition available.

+ Details

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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

+ Details

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The number of grants made 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 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 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 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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Share-Based Compensation Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Aug. 29, 2014 Performance Units [Member]	Aug. 29, 2014 Performance Units [Member] Performance Condition [Member]	Aug. 29, 2014 Performance Units [Member] Performance Condition [Member] Executive Officer [Member]	Aug. 29, 2014 Performance Units [Member] Performance Condition [Member] Minimum [Member]	Aug. 29, 2014 Performance Units [Member] Performance Condition [Member] Maximum [Member]	Aug. 29, 2014 Restricted Stock Units [Member]	Aug. 29, 2014 Restricted Stock Units [Member] Executive Officer [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] Executive Officer [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member] Executive Officer [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member] Minimum [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member] Maximum [Member]	Aug. 29, 2014 2015 Performance Unit Award [Member] Performance Units [Member] ROIC PSUs [Member]	Aug. 23, 2013 2014 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member]	Aug. 24, 2012 2013 Performance Unit Award [Member] Performance Units [Member] Market Condition [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	2 years 1 month					2 years 0 months
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	$ 6.5					$ 11.5
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	611,024		152,756			709,518	130,181	305,512		152,756
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Percent Earned				0.00%	200.00%						0.00%	200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Shares Issued		305,512							305,512
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 19.97					$ 16.63			$ 23.25				$ 16.69	$ 15.50	$ 11.92