Net Loss Per Share - Computations of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 31, 2021	May 01, 2021	Aug. 01, 2020	May 02, 2020	Jul. 31, 2021	Aug. 01, 2020
Numerator:
Net loss	$ (276,428)	$ (88,242)	$ (157,893)	$ (113,033)	$ (364,670)	$ (270,926)
Denominator:
Weighted average shares — basic (in shares)	821,062		667,574		757,205	665,541
Effect of dilutive securities:
Share-based awards (in shares)	0		0		0	0
Convertible debt (in shares)	0		0		0	0
Weighted average shares — diluted (in shares)	821,062		667,574		757,205	665,541
Net loss per share:
Basic (in dollars per share)	$ (0.34)		$ (0.24)		$ (0.48)	$ (0.41)
Diluted (in dollars per share)	$ (0.34)		$ (0.24)		$ (0.48)	$ (0.41)