Commitments and Contingencies (Details) $ in Millions	Jun. 30, 2017 USD ($)
Components of Environmental Loss Accrual [Abstract]
Accrual For Environmental Loss Contingencies	$ 14
Accrued Environmental Loss Contingencies Current	7
Federal Superfund and comparable state-managed sites	2
Formerly owned or operated sites	10
Owned or controlled sites at which Company operations have been discontinued	1
Sites utilized by the company in its ongoing operations	1
Maximum
Loss Contingency, Estimate [Abstract]
Loss contingency maximum possible loss	$ 19