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Disclosure - Pension and retirement plans (Periodic Pension Cost) (Details) link:presentationLink link:calculationLink link:definitionLink 41101 - Disclosure - Earnings per share (Details) link:presentationLink link:calculationLink link:definitionLink 00090 - Document - Document and Entity Information Document link:presentationLink link:calculationLink link:definitionLink 00105 - Statement - Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Basis of presentation and new accounting pronouncements link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - Acquisitions and Discontinued operations link:presentationLink link:calculationLink link:definitionLink 10401 - Disclosure - Goodwill and long-lived assets link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - Derivative financial instruments link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - Pension and retirement plan link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - Shareholders' equity link:presentationLink link:calculationLink link:definitionLink 11101 - Disclosure - Earnings per share link:presentationLink link:calculationLink link:definitionLink 11201 - Disclosure - Additional cash flow information link:presentationLink link:calculationLink link:definitionLink 11301 - Disclosure - Segment information link:presentationLink link:calculationLink link:definitionLink 11401 - Disclosure - Restructuring expenses link:presentationLink link:calculationLink link:definitionLink 20102 - Disclosure - Basis of presentation and new accounting pronouncements (Policies) link:presentationLink link:calculationLink link:definitionLink 30403 - Disclosure - Goodwill and long-lived assets (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 30603 - Disclosure - Derivative financial instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 30903 - Disclosure - Pension and retirement plans (Tables) link:presentationLink link:calculationLink link:definitionLink 31103 - Disclosure - Earnings per share (Tables) link:presentationLink link:calculationLink link:definitionLink 31203 - Disclosure - Additional cash flow information (Tables) link:presentationLink link:calculationLink link:definitionLink 31303 - Disclosure - Segment information (Tables) link:presentationLink link:calculationLink link:definitionLink 31403 - Disclosure - Restructuring expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 40101 - Disclosure - Basis of presentation and new accounting pronouncements (Details) link:presentationLink link:calculationLink link:definitionLink 40301 - 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Disclosure - Additional cash flow information (Details) link:presentationLink link:calculationLink link:definitionLink 41301 - Disclosure - Segment information (Details) link:presentationLink link:calculationLink link:definitionLink 41302 - Disclosure - Segment information (Sales, by geographic area) (Details) link:presentationLink link:calculationLink link:definitionLink 41303 - Disclosure - Segment information (Property, plant and equipment, net, by geographic area) (Details) link:presentationLink link:calculationLink link:definitionLink 41401 - Disclosure - Restructuring expenses (Details) link:presentationLink link:calculationLink link:definitionLink 41402 - Disclosure - Restructuring expenses (Textuals) (Details) link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - Revenue recognition link:presentationLink link:calculationLink link:definitionLink 40201 - Disclosure - Revenue recognition (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - Income taxes (Tax Cuts and Jobs Act of 2017) (Details) link:presentationLink link:calculationLink link:definitionLink