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Revenue Revenue from Long-term Performance Obligations (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-06-30
$ in Millions
Sep. 28, 2019
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction 5 years
Remaining performance obligation $ 297.6