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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Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Contingencies and commitments (Details) - Hospira, Inc. [Member] - USD ($) $ in Millions	Apr. 17, 2020	Mar. 23, 2020
Loss Contingencies [Line Items]
Amount awarded from settlement		$ 70
Subsequent Event [Member]
Loss Contingencies [Line Items]
Amount received from settlement	$ 83