Goodwill and Other Purchased Intangible Assets (Goodwill) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill			$ 5,622
Accumulated impairment losses			(1,829)
Goodwill [Roll Forward]
Goodwill at December 31, 2013		3,793
Adjustment due to sale of certain assets (Note 2)	(37)	(37)
Goodwill at March 31, 2014	3,756	3,756
Broadband Communications
Goodwill [Line Items]
Goodwill			770
Accumulated impairment losses			0
Goodwill [Roll Forward]
Goodwill at December 31, 2013		770
Adjustment due to sale of certain assets (Note 2)		0
Goodwill at March 31, 2014	770	770
Mobile and Wireless
Goodwill [Line Items]
Goodwill			1,053
Accumulated impairment losses			(543)
Goodwill [Roll Forward]
Goodwill at December 31, 2013		510
Adjustment due to sale of certain assets (Note 2)		0
Goodwill at March 31, 2014	510	510
Infrastructure and Networking
Goodwill [Line Items]
Goodwill			3,778
Accumulated impairment losses			(1,286)
Goodwill [Roll Forward]
Goodwill at December 31, 2013		2,492
Adjustment due to sale of certain assets (Note 2)		(37)
Goodwill at March 31, 2014	2,455	2,455
Foreign Currency [Member]
Goodwill [Line Items]
Goodwill			21
Accumulated impairment losses			0
Goodwill [Roll Forward]
Goodwill at December 31, 2013		21
Adjustment due to sale of certain assets (Note 2)		0
Goodwill at March 31, 2014	$ 21	$ 21