Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) (USD $) In Millions, unless otherwise specified									3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Patents and developed technology	Dec. 31, 2013 Patents and developed technology	Sep. 30, 2014 Customer relationships	Dec. 31, 2013 Customer relationships	Sep. 30, 2014 Trade names and other	Dec. 31, 2013 Trade names and other	Sep. 30, 2014 Acquisition-related intangible assets	Sep. 30, 2013 Acquisition-related intangible assets	Sep. 30, 2014 Acquisition-related intangible assets	Sep. 30, 2013 Acquisition-related intangible assets	Sep. 30, 2014 Patent royalty
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,568	$ 9,586	$ 6,515	$ 7,282	$ 1,405	$ 1,770	$ 648	$ 534
Accumulated Amortization	3,824	3,520	2,337	2,102	1,127	1,067	360	351
Net Carrying Value	4,744	6,066	4,178	5,180	278	703	288	183
Amortization of acquisition-related intangible assets									285	244	821	769
Impairment of Intangible Assets, Finite-lived													$ 378