Segment Information (Revenue by Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Total revenue	$ 31,384	$ 30,662	$ 31,445	$ 28,055	$ 27,547	$ 25,375	$ 25,537	$ 24,070	$ 121,546	$ 102,531	$ 91,084
Operating Segments
Segment Reporting Information [Line Items]
Total revenue									121,561	102,511	91,072
Operating Segments | Pharmaceutical
Segment Reporting Information [Line Items]
Total revenue									109,131	91,116	80,110
Operating Segments | Medical
Segment Reporting Information [Line Items]
Total revenue									12,430	11,395	10,962
Corporate
Segment Reporting Information [Line Items]
Total revenue									$ (15)	$ 20	$ 12