Contingencies - Additional Information (Detail) (USD $)	1 Months Ended		12 Months Ended							1 Months Ended			1 Months Ended				1 Months Ended			1 Months Ended
	Dec. 31, 2011 International Trade Commission LegalMatter	Aug. 31, 2011 International Trade Commission LegalMatter	Jun. 30, 2012 Antitrust, Unfair Competition, And Overcharge Class Actions United States	Jun. 30, 2012 Antitrust, Unfair Competition, And Overcharge Class Actions Canada LegalMatter	Jun. 30, 2012 Antitrust, Unfair Competition, And Overcharge Class Actions Canada Cases Stayed LegalMatter	Oct. 31, 2010 Patent And Intellectual Property Claims Motorola, Defendant LegalMatter	Jun. 30, 2012 Patent And Intellectual Property Claims Wisconsin Cases Stayed LegalMatter	Jun. 30, 2012 Patent And Intellectual Property Claims US State District Court Motorola, Defendant LegalMatter	Jun. 30, 2012 Patent And Intellectual Property Claims US State District Court Motorola, Plaintiff LegalMatter	May 31, 2012 Patent And Intellectual Property Claims GERMANY Motorola, Defendant LegalMatter	Jul. 31, 2011 Patent And Intellectual Property Claims GERMANY Motorola, Plaintiff The H.264 video standard LegalMatter	Jul. 31, 2011 Patent And Intellectual Property Claims GERMANY Motorola, Plaintiff Certain syncing functionality in the ActiveSync protocol LegalMatter	Apr. 30, 2012 Patent And Intellectual Property Claims International Trade Commission Motorola, Plaintiff LegalMatter	Nov. 30, 2010 Patent And Intellectual Property Claims International Trade Commission Motorola, Plaintiff LegalMatter	Jun. 30, 2012 Patent Infringements Patents LegalMatter	Jun. 30, 2012 Contingencies Disclosed in Contingencies Note	Jun. 30, 2005 Other Antitrust Litigation and Claims Novell LegalMatter	Nov. 30, 2004 Other Antitrust Litigation and Claims Novell LegalMatter	Jun. 30, 2012 Other Antitrust Litigation and Claims Novell LegalMatter	Jul. 17, 2012 Subsequent Event Upper Limit
Loss Contingencies [Line Items]
Maximum value of vouchers to be issued			$ 2,700,000,000
Total estimated cost of state overcharge class action cases, minimum			1,900,000,000
Total estimated cost of state overcharge class action cases, maximum			2,000,000,000
Accrual for loss contingency, ending balance			500,000,000
Settlement payments			1,400,000,000
Number of pending claims				3	2		1												1
Number of claims dismissed																	4
Number of claims filed																		6
Percentage of worldwide annual revenue a company may be fined if found to have breached a legally binding commitment																				10.00%
Number of patents allegedly infringed						9		14	15		2	1		5
Number of actions heard		7
Favorable verdict - number of patents	1									1
Unfavorable verdict - number of patents										1			4
Other infringement cases pending															60
Accrual for disclosed loss contingencies, current, ending balance																384,000,000
Accrual for disclosed loss contingencies, noncurrent, ending balance																220,000,000
Amount not accrued for estimated maximum losses for disclosed loss contingencies																$ 550,000,000