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Fair Value for Pension Assets Measured at Fair Value on Recurring Basis (Detail) - Funded Plan - USD ($) $ in Thousands		Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 1,119,842	$ 1,170,748	$ 944,801
Fair value of assets		1,119,842	1,170,748
Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		(33)
Short-Term Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		57,713	136,276
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		216,526	234,765
Corporate And Government Bond Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		337,864	300,761
Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		612,070	671,802
Assets Measured at Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	507,772	498,946
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets		274,239	371,041
Level 1 | Short-Term Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		57,713	136,276
Level 1 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		216,526	234,765
Level 1 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		274,239	371,041
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets		337,831	300,761
Level 2 | Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		(33)
Level 2 | Corporate And Government Bond Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		337,864	300,761
Level 2 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 337,831	$ 300,761
[1] In accordance with Subtopic 820-10, certain investments that were measured using net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the fair value of assets presented above.

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Defined Benefit Plan Fair Value Of Plan Assets Gross

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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