Stock-Based Compensation - Restricted Stock and Restricted Stock Unit 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 Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding	12	10	10
Granted	7	8	5
Vested	(4)	(4)	(4)
Forfeited	(2)	(2)	(1)
Outstanding	13	12	10
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding	$ 91.93	$ 72.74	$ 54.17
Granted	$ 76.20	$ 101.73	$ 91.51
Vested	$ 83.21	$ 69.01	$ 48.47
Forfeited	$ 90.55	$ 81.53	$ 64.70
Outstanding	$ 85.85	$ 91.93	$ 72.74
EMC Information Infrastructure Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding	47	46	44
Granted	20	21	21
Vested	(15)	(16)	(15)
Forfeited	(4)	(4)	(4)
Outstanding	48	47	46
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding	$ 24.39	$ 21.10	$ 17.20
Granted	$ 25.55	$ 26.57	$ 25.12
Vested	$ 22.61	$ 18.92	$ 16.44
Forfeited	$ 24.80	$ 23.09	$ 20.56
Outstanding	$ 25.43	$ 24.39	$ 21.10