Business and summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of ranges of estimated useful lives of Property, plant and equipment

	Years
Buildings		25 - 40
Land improvements		20
Machinery and equipment		5 - 20
Furniture and fixtures		5 - 10

Schedule of estimated useful lives for each major category of amortizable intangible assets

	Years
Trade name		5 - 10
Technology and know-how		5 - 9
Customer related intangible		5 - 14