Subsequent Events (Details) - Subsequent Event $ in Millions	Aug. 01, 2018 USD ($)
Minimum | 2018 Restructuring Plan
Subsequent Event [Line Items]
Estimated restructuring and repositioning costs expenses	$ 30
Percent reduction of Company's workforce	8.00%
Maximum | 2018 Restructuring Plan
Subsequent Event [Line Items]
Estimated restructuring and repositioning costs expenses	$ 35
Percent reduction of Company's workforce	10.00%
Restructuring Costs
Subsequent Event [Line Items]
Restructuring and related cost, percent expected to be settled in cash	80.00%
Restructuring Costs | Minimum | 2018 Restructuring Plan
Subsequent Event [Line Items]
Estimated restructuring and repositioning costs expenses	$ 20
Restructuring Costs | Maximum | 2018 Restructuring Plan
Subsequent Event [Line Items]
Estimated restructuring and repositioning costs expenses	$ 25
Repositioning Costs
Subsequent Event [Line Items]
Restructuring and related cost, percent expected to be settled in cash	100.00%
Repositioning Costs | 2018 Restructuring Plan
Subsequent Event [Line Items]
Estimated restructuring and repositioning costs expenses	$ 10
Severance and other employee costs
Subsequent Event [Line Items]
Restructuring and related cost, percent of total cost	70.00%
Facility exit costs
Subsequent Event [Line Items]
Restructuring and related cost, percent of total cost	30.00%