Income Taxes - Operating Loss Carryforwards (Details) - State [Member] $ in Millions	Dec. 31, 2015 USD ($)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 21
Tax Years 2021 - 2025 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	2
Tax Years 2026 - 2030 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	18
Tax Year 2031 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 1