CONSOLIDATED INCOME STATEMENTS (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues:
Product sales	$ 3,068,857,000	$ 2,931,259,000
Services	2,025,521,000	1,676,359,000
Total consolidated revenues	5,094,378,000	4,607,618,000
Costs and expenses:
Cost of product sales	1,301,550,000	1,320,488,000
Cost of services	679,611,000	588,079,000
Research and development	587,817,000	502,108,000
Selling, general and administrative	1,650,197,000	1,495,931,000
Restructuring and acquisition-related charges	25,893,000	26,893,000
Operating income	849,310,000	674,119,000
Non-operating income (expense):
Investment income	29,452,000	38,227,000
Interest expense	(18,183,000)	(44,979,000)
Other expense, net	(43,690,000)	(43,174,000)
Total non-operating expense	(32,421,000)	(49,926,000)
Income before provision for income taxes	816,889,000	624,193,000
Income tax provision	190,910,000	121,639,000
Net income	625,979,000	502,554,000
Less: Net income attributable to the non-controlling interest in VMware, Inc.	(39,137,000)	(25,406,000)
Net income attributable to EMC Corporation	$ 586,842,000	$ 477,148,000
Net income per weighted average share, basic attributable to EMC Corporation common shareholders	$ 0.28	$ 0.23
Net income per weighted average share, diluted attributable to EMC Corporation common shareholders	$ 0.27	$ 0.21
Weighted average shares, basic	2,067,828,000	2,066,136,000
Diluted weighted average shares outstanding	2,201,933,000	2,258,278,000