Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 785,681	$ (214,220)	$ 1,319,611	$ (1,101,709)
Additions to other comprehensive income:
Foreign currency translation adjustments, net of taxes	(876)	69,378	21,373	(59,780)
Reclassifications from other comprehensive income (loss) to net income (loss):
Amortization of prior service cost and deferred gains/losses, net of taxes	4,368	4,797	7,269	9,594
Amortization of loss on cash flow hedge, net of taxes	0	208	(263)	416
Other comprehensive income (loss), net of tax	3,492	74,383	28,379	(49,770)
Total comprehensive income (loss)	$ 789,173	$ (139,837)	$ 1,347,990	$ (1,151,479)