Balance Sheet Components - Revenue Remaining Performance Obligation (Details) $ in Millions |
Jan. 31, 2021
USD ($)
|
|---|---|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation | $ 683 |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-02-01 | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation (as percent) | 44.00% |
| Expected performance period | 12 months |