Fair Value for Pension Assets Measured at Fair Value on Recurring Basis (Detail) - Funded Plan - USD ($) $ in Thousands		Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 1,417,531	$ 1,176,960	$ 1,119,842
Fair value of assets		1,417,531	1,176,960
Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		337	(31)
Short-Term Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		109,183	63,704
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		279,635	208,451
Corporate and Government Bond Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		420,117	386,777
Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		809,272	658,901
Assets Measured at Net Asset Value
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	608,259	518,059
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets		388,818	272,155
Level 1 | Short-Term Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		109,183	63,704
Level 1 | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		279,635	208,451
Level 1 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		388,818	272,155
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of assets		420,454	386,746
Level 2 | Futures Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		337	(31)
Level 2 | Corporate and Government Bond Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		420,117	386,777
Level 2 | Assets in Fair Value Hierarchy
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 420,454	$ 386,746

[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.