Segment Information (Assets by Reportable Segment) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting, Asset Reconciling Item
Assets	$ 26,033	$ 25,819	$ 24,260
Pharmaceutical
Segment Reporting, Asset Reconciling Item
Assets	15,361	16,258	16,642
Medical
Segment Reporting, Asset Reconciling Item
Assets	6,768	6,521	4,399
Corporate
Segment Reporting, Asset Reconciling Item
Assets	$ 3,904	$ 3,040	$ 3,219