Segment Information (Revenue by Reportable Segment) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Segment Reporting Information
Revenues	$ 25,889		$ 26,792
Pharmaceutical
Segment Reporting Information
Revenues	23,498		24,418
Medical
Segment Reporting Information
Revenues	2,393		2,380
Reportable Segment
Segment Reporting Information
Revenues	25,891		26,798
Corporate
Segment Reporting Information
Revenues	$ (2)	[1]	$ (6)	[1]

[1] Corporate revenue consists of the elimination of inter-segment revenue.