|9 Months Ended|
Sep. 30, 2018
|Goodwill and Intangible Assets Disclosure [Abstract]|
|Schedule of changes in goodwill||
The following table presents the changes in goodwill including acquisitions and divestitures as discussed in Note 4 of our Condensed Consolidated Financial Statements.
Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef