Segment And Geographic Information (Geographic Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										6 Months Ended		12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Segment Reporting Information [Line Items]
Net Sales	$ 24,921	$ 21,808	$ 22,675	$ 21,155	$ 23,306	$ 21,902	$ 22,870	$ 20,077	$ 20,930	$ 16,799	$ 46,729	$ 45,208	$ 89,038	$ 80,676	$ 61,682
Long-lived assets, United States	7,287		7,288				7,234				7,287		7,288	7,234
Long-lived assets, Foreign	2,836		2,524				2,266				2,836		2,524	2,266
Long-Lived Assets	10,123		9,812				9,500				10,123		9,812	9,500
United States [Member]
Segment Reporting Information [Line Items]
Net Sales											25,033	24,490	46,593	42,390	33,362
Switzerland [Member]
Segment Reporting Information [Line Items]
Net Sales											4,991	5,237	9,698	8,413	5,770
Germany [Member]
Segment Reporting Information [Line Items]
Net Sales											4,450	4,521	9,656	6,217	6,424
Other Foreign [Member]
Segment Reporting Information [Line Items]
Net Sales											$ 12,255	$ 10,960	$ 23,091	$ 23,656	$ 16,126