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Pension Plans and Other Retirement Benefits - Fair Value for Pension Assets Measured at Fair Value on Recurring Basis (Detail) - Funded Plan - USD ($) $ in Thousands	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,562,274	$ 1,245,335	$ 1,417,531
Fair value of assets	1,562,274	1,245,335
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets	341,560	337,845
Level 1 | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,953	111,803
Level 1 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	231,607	226,042
Level 1 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	341,560	337,845
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets	477,979	377,467
Level 2 | Corporate and government bond funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	480,519	376,438
Level 2 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	477,979	377,467
Level 2 | Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(2,540)	1,029
Total
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	819,539	715,312
Total | Short-term investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,953	111,803
Total | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	231,607	226,042
Total | Corporate and government bond funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	480,519	376,438
Total | Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(2,540)	1,029
Assets measured at net asset value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 742,735	$ 530,023

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Defined Benefit Plan Fair Value Of Plan Assets Gross

+ References

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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