v3.8.0.1
Organization and Summary of Significant Accounting Policies - Narrative - Goodwill, Intangible Assets and Other Long-Lived Assets (Details)
$ in Millions
12 Months Ended
Dec. 31, 2017
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Impairment of in-process research and development $ 5
Cost of Sales [Member]  
Finite-Lived Intangible Assets [Line Items]  
Impairment of finite-lived intangible assets $ 18