Restructuring and Acquisition-Related Charges - Activity For Restructuring Program (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended																		1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Workforce reductions	Dec. 31, 2011 Workforce reductions	Dec. 31, 2012 Consolidation of excess facilities and other contractual obligations	Dec. 31, 2011 Consolidation of excess facilities and other contractual obligations	Dec. 31, 2013 Restructuring 2013 Programs	Dec. 31, 2013 Restructuring 2013 Programs Workforce reductions	Dec. 31, 2013 Restructuring 2013 Programs Consolidation of excess facilities and other contractual obligations	Dec. 31, 2013 Restructuring other programs	Dec. 31, 2012 Restructuring other programs	Dec. 31, 2013 Restructuring other programs Workforce reductions	Dec. 31, 2013 Restructuring other programs Consolidation of excess facilities and other contractual obligations	Dec. 31, 2013 VMware	Dec. 31, 2013 VMware Restructuring 2013 Programs	Dec. 31, 2013 VMware Restructuring 2013 Programs Workforce reductions	Dec. 31, 2013 VMware Restructuring 2013 Programs Consolidation of excess facilities and other contractual obligations	Jan. 31, 2014 Subsequent Event Minimum	Jan. 31, 2014 Subsequent Event Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost																			$ 100	$ 120
Restructuring Reserve [Roll Forward]
Beginning Balance	91	80	82	50	54	30	28	0	0	0	91		63	28		0	0	0
Charges/Adjustments to the Provision	139	101	86	80	60	21	26	137	130	7	2	(8)	9	11	54	54	54	0
Utilization		(90)	(88)	(67)	(64)	(23)	(24)	(88)	(82)	(6)	(52)		(36)	(16)		(54)	(54)	0
Ending Balance		91	80	63	50	28	30	49	48	1	41	91	18	23		0	0	0
Restructuring and Related Cost, Expected Cost, to be Settled with Cash																			$ 95	$ 114