Subsequent Events (Details) - Subsequent Event - Fiscal 2019 Plan $ in Millions	May 02, 2018 USD ($) Employee
Subsequent Event [Line Items]
Expected number of positions eliminated | Employee	800
Minimum
Subsequent Event [Line Items]
Expected restructuring costs	$ 140
Minimum | Employee Severance
Subsequent Event [Line Items]
Expected restructuring costs	90
Minimum | Facility Exit and Consolidation
Subsequent Event [Line Items]
Expected restructuring costs	50
Maximum
Subsequent Event [Line Items]
Expected restructuring costs	160
Maximum | Employee Severance
Subsequent Event [Line Items]
Expected restructuring costs	100
Maximum | Facility Exit and Consolidation
Subsequent Event [Line Items]
Expected restructuring costs	$ 60