Segment And Geographic Information (Geographic Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								6 Months Ended		12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Revenues	$ 20,894	$ 18,117	$ 21,494	$ 20,696	$ 24,143	$ 21,393	$ 22,541	$ 21,727	$ 46,729	$ 45,208	$ 81,201	$ 89,804	$ 89,038
Long-Lived Assets	9,960				10,137						9,960	10,137
UNITED STATES
Segment Reporting Information [Line Items]
Revenues									25,033	24,490	39,609	41,427	46,593
Long-Lived Assets	6,693				7,192						6,693	7,192
Switzerland [Member]
Segment Reporting Information [Line Items]
Revenues									4,991	5,237	10,118	10,467	9,698
GERMANY
Segment Reporting Information [Line Items]
Revenues									4,450	4,521	7,174	10,029	9,656
Other Foreign [Member]
Segment Reporting Information [Line Items]
Revenues									12,255	10,960	24,300	27,881	23,091
Long-Lived Assets	$ 3,267				$ 2,945						$ 3,267	$ 2,945