Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 866,656	$ 828,263	$ (235,053)	$ 2,287,403
Additions to other comprehensive (loss) income:
Foreign currency translation adjustments, net of related tax provisions	(25,568)	70,785	(85,348)	(20,119)
Reclassifications from other comprehensive (loss) income to net income:
Amortization of prior service cost and deferred gains/losses, net of related tax provisions	5,440	4,418	15,034	12,402
Amortization of loss on cash flow hedge, net of related tax provisions	208	208	624	624
Other comprehensive (loss) income, net of tax	(19,920)	75,411	(69,690)	(7,093)
Total comprehensive (loss) income	$ 846,736	$ 903,674	$ (304,743)	$ 2,280,310