Stock-Based Compensation - Stock Option Activity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
VMware Stock Options
Options Activity, Number of Shares [Roll Forward]
Outstanding	10	16	27
Granted	1	1
Forfeited		(1)	(1)
Exercised	(5)	(6)	(10)
Outstanding	6	10	16
Exercisable	4
Vested and expected to vest	6
Options Activity, Weighted Average Exercise Price [Roll Forward]
Outstanding	$ 34.36	$ 35.27	$ 33.54
Granted	$ 71.53	$ 4.67
Forfeited		$ 42.07	$ 40.98
Exercised	$ 28.12	$ 30.44	$ 28.64
Outstanding	$ 44.12	$ 34.36	$ 35.27
Exercisable	$ 36.45
Vested and expected to vest	$ 42.84
EMC Information Infrastructure Stock Options
Options Activity, Number of Shares [Roll Forward]
Outstanding	77	112	172
Options granted relating to business acquisitions	1	2	1
Granted	0	1	2
Forfeited	(1)	(2)	(4)
Expired	0	(1)	(14)
Exercised	(20)	(35)	(45)
Outstanding	57	77	112
Exercisable	50
Vested and expected to vest	57
Options Activity, Weighted Average Exercise Price [Roll Forward]
Outstanding	$ 14.39	$ 13.69	$ 15.23
Options granted relating to business acquisitions	$ 3.29	$ 1.54	$ 3.24
Granted	$ 0.00	$ 26.80	$ 25.31
Forfeited	$ 13.36	$ 13.75	$ 13.00
Expired	$ 0.00	$ 14.19	$ 40.05
Exercised	$ 13.10	$ 11.65	$ 11.91
Outstanding	$ 14.56	$ 14.39	$ 13.69
Exercisable	$ 14.58
Vested and expected to vest	$ 14.59