Restructuring and Acquisition-Related Charges - Additional information (Detail) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended		6 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 VMware	Jun. 30, 2013 VMware	Jun. 30, 2013 Restructuring 2013 Programs Positions	Jun. 30, 2013 Restructuring 2013 Programs	Dec. 31, 2013 Restructuring 2013 Programs	Jun. 30, 2013 Restructuring 2013 Programs VMware	Mar. 31, 2013 Restructuring 2013 Programs VMware	Jun. 30, 2013 Restructuring 2013 Programs VMware	Dec. 31, 2013 Restructuring 2013 Programs VMware Positions	Jun. 30, 2012 Restructuring 2012 Programs Positions	Mar. 31, 2012 Restructuring 2012 Programs Positions	Dec. 31, 2012 Restructuring 2012 Programs Positions	Dec. 31, 2013 Consolidation of excess facilities and other contractual obligations	Jun. 30, 2013 Consolidation of excess facilities and other contractual obligations Restructuring 2013 Programs VMware	Jun. 30, 2013 Consolidation of excess facilities and other contractual obligations Restructuring 2013 Programs VMware	Jun. 30, 2013 Workforce reductions Restructuring 2013 Programs VMware	Jun. 30, 2013 Workforce reductions Restructuring 2013 Programs VMware	Dec. 31, 2013 Minimum Restructuring 2013 Programs VMware	Dec. 31, 2013 Minimum Consolidation of excess facilities and other contractual obligations Restructuring 2013 Programs VMware	Dec. 31, 2013 Minimum Workforce reductions Restructuring 2013 Programs VMware	Dec. 31, 2013 Maximum Restructuring 2013 Programs VMware	Dec. 31, 2013 Maximum Consolidation of excess facilities and other contractual obligations Restructuring 2013 Programs VMware	Dec. 31, 2013 Maximum Workforce reductions Restructuring 2013 Programs VMware
Restructuring Cost and Reserve [Line Items]
Gain (Loss) on Disposition of Assets					$ 32,000,000
Restructuring and acquisition-related charges	7,000,000	28,000,000	155,000,000	53,000,000
Assets Held-for-sale, Current					19,000,000	19,000,000
Restructuring charges	4,000,000	24,000,000	85,000,000	48,000,000	2,000,000	56,000,000				2,000,000		56,000,000						0	0	2,000,000	56,000,000
Asset Impairment Charges					1,000,000	10,000,000
Acquisition-related charges	0	4,000,000	3,000,000	5,000,000	0	1,000,000
Restructuring and Related Cost, Number of Positions Eliminated							1,000						750	279	298	1,163
Restructuring and Related Cost, Expected Cost									80,000,000														20,000,000	55,000,000		25,000,000	60,000,000
Restructuring and Related Cost, Expected Cost, to be Settled with Cash									73,000,000													50,000,000			60,000,000
Lease termination costs for facilities	5,000,000	4,000,000	12,000,000	8,000,000
Date of completion of workforce reduction and/or consolidation of facilities								within a year of the start of each program			by the end of 2013		through the end of 2013			2013	2015
Liabilities of Disposal Group, Including Discontinued Operation, Current					$ 21,000,000	$ 21,000,000