Segment Information (Revenue by Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 32,966	$ 31,821	$ 33,150	$ 32,039	$ 31,384	$ 30,662	$ 31,445	$ 28,055	$ 129,976	$ 121,546	$ 102,531
Operating Segments
Segment Reporting Information [Line Items]
Total revenue									129,987	121,561	102,511
Operating Segments | Pharmaceutical
Segment Reporting Information [Line Items]
Total revenue									116,463	109,131	91,116
Operating Segments | Medical
Segment Reporting Information [Line Items]
Total revenue									13,524	12,430	11,395
Corporate
Segment Reporting Information [Line Items]
Total revenue									$ (11)	$ (15)	$ 20