Contingencies and commitments (Sensipar ANDA Patent Litigation) (Details) - lawsuit	1 Months Ended
Feb. 28, 2017	Sep. 30, 2016
Sensipar (cinacalcet) Patent Litigation
Gain Contingencies [Line Items]
Number of lawsuits filed		14
Amgen Inc. v. Aurobindo Pharma Ltd. et al
Gain Contingencies [Line Items]
Number of lawsuits consolidated	14

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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