Segment Information (Assets by Reportable Segment) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]
Assets	$ 30,142	$ 26,033	$ 25,819
Pharmaceutical
Segment Reporting Information [Line Items]
Assets	17,385	15,361	16,258
Medical
Segment Reporting Information [Line Items]
Assets	7,095	6,768	6,521
Corporate
Segment Reporting Information [Line Items]
Assets	$ 5,662	$ 3,904	$ 3,040