401(k) Plan	12 Months Ended
	Jan. 31, 2022
Retirement Benefits [Abstract]
401(k) Plan	401(k) PlanWe have a qualified defined contribution plan under Section 401(k) of the Internal Revenue Code covering eligible employees as well as a Registered Retirement Savings Plan (RRSP) for eligible employees in Canada. Under the 401(k) plan, we match up to $2,000 per employee per year. Under the RRSP plan, we also match up to $2,000 per employee per year. For the fiscal years ended January 31, 2022, 2021, and 2020, total expense related to these plans was $7 million, $6 million, and $4 million, respectively.