Revenue, Deferred Revenue and Remaining Performance Obligations - Performance Obligations (Details) $ in Billions |
Jan. 31, 2021
USD ($)
|
|---|---|
| Revenue Recognition and Deferred Revenue [Abstract] | |
| Transaction price allocated to remaining performance obligation, amount | $ 1.4 |
| 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, percentage | 72.00% |
| Remaining performance obligation, period | 12 months |