Revenue (Performance Obligation) (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-28 |
Oct. 27, 2018 |
|---|---|
| Revenue from Contract with Customer [Abstract] | |
| Remaining performance obligation, expected timing of satisfaction, period | 1 year |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | |
| Remaining performance obligation, percentage | 55.00% |