Basis of Presentation Reverse Stock Split (Details) $ in Millions	Jun. 14, 2017 shares	Jun. 30, 2017 USD ($)
Class of Stock [Line Items]
Stock Split, Conversion Ratio	0.25
Common Stock
Class of Stock [Line Items]
Common Stock Shares Authorized Prior to Reverse Split	1,750,000,000
Common Stock | Reverse Stock Split [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized	437,500,000
Common Stock Reclassed to Additional Paid-in Capital | $		$ 760