Debt (Accounts Receivable Securitization Facility Narrative) (Details) - USD ($) $ in Millions		Sep. 30, 2016	Jul. 08, 2016
Accounts Receivable Securitization Facility [Member] | Secured Debt [Member]
Line of Credit Facility [Line Items]
Maximum borrowing base	[1]	$ 120	$ 120

[1] Outstanding accounts receivable transferred to the SPE was $154 million.