Goodwill and Other Intangible Assets (Acquisition-Related Intangible Assets that are being Amortized) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended									3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Jun. 30, 2014 Patents and developed technology	Dec. 31, 2013 Patents and developed technology	Jun. 30, 2014 Customer relationships	Dec. 31, 2013 Customer relationships	Jun. 30, 2014 Trade names and other	Dec. 31, 2013 Trade names and other	Jun. 30, 2014 Acquisition-related intangible assets	Jun. 30, 2013 Acquisition-related intangible assets	Jun. 30, 2014 Acquisition-related intangible assets	Jun. 30, 2013 Acquisition-related intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9,026		$ 9,586	$ 6,976	$ 7,282	$ 1,400	$ 1,770	$ 650	$ 534
Accumulated Amortization	3,792		3,520	2,346	2,102	1,085	1,067	361	351
Net Carrying Value	5,234		6,066	4,630	5,180	315	703	289	183
Amortization of acquisition-related intangible assets	$ 536	$ 598								$ 266	$ 246	$ 536	$ 525