Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies (Details)

v3.8.0.1
Basis of Presentation and Significant Accounting Policies (Details) - Accounting Standards Update 2016-09 [Member]
$ in Millions
Apr. 01, 2017
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Deferred tax assets, net $ 96
Valuation Allowance of Deferred Tax Assets [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Deferred tax assets, valuation allowance 96
Accumulated Deficit [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative effect of new accounting principle (96)
Accumulated Deficit [Member] | Valuation Allowance of Deferred Tax Assets [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative effect of new accounting principle $ 96