Discontinued Operations, Assets Held for Sale and Divestitures (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Jan. 06, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Date	Jan. 06, 2017
Disposal Group, Including Discontinued Operation, Consideration		$ 305.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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