5 Business combinations (Details 7)	May 30, 2018
Centro De Ciencias Em Saude De Itajuba S.A. ("CCSI") [Member] \| Licences [member]
Disclosure of detailed information about business combination [line items]
Valuation technique	With and without method - The With-and-Without method consists of estimating the fair value of an asset by the difference between the value of this asset in two scenarios: a scenario considering the existence of the asset in question and another considering its non-existence.

The description of the valuation techniques and significant inputs used to measure non-controlling interest in an acquiree measured at fair value for business combinations in which the acquirer holds less than 100 per cent of the equity interests in the acquiree at the acquisition date. [Refer: At fair value [member]; Business combinations [member]; Valuation techniques [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph B64
-Subparagraph o
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B64_o_ii&doctype=Appendix&subtype=B
-URIDate 2019-03-27

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