CONSOLIDATED INCOME STATEMENTS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Product sales	$ 13,060,523	$ 12,590,742	$ 10,892,857
Services	8,653,379	7,416,846	6,122,269
Total consolidated revenues	21,713,902	20,007,588	17,015,126
Costs and expenses:
Cost of product sales	5,258,164	5,319,761	4,882,031
Cost of services	2,817,375	2,518,885	2,102,114
Research and development	2,559,612	2,149,787	1,888,015
Selling, general and administrative	7,004,287	6,479,382	5,375,305
Restructuring and acquisition-related charges	110,590	97,334	84,375
Operating income	3,963,874	3,442,439	2,683,286
Non-operating income (expense):
Investment income	114,993	129,248	142,536
Interest expense	(78,903)	(170,466)	(178,345)
Other income (expense), net	(196,349)	(151,951)	(39,494)
Total non-operating income (expense)	(160,259)	(193,169)	(75,303)
Income before provision for income taxes	3,803,615	3,249,270	2,607,983
Income tax provision	917,598	640,385	638,297
Net income	2,886,017	2,608,885	1,969,686
Less: Net income attributable to the non-controlling interest in VMware, Inc.	(153,404)	(147,548)	(69,691)
Net income attributable to EMC Corporation	$ 2,732,613	$ 2,461,337	$ 1,899,995
Net income per weighted average share, basic attributable to EMC Corporation common shareholders	$ 1.31	$ 1.20	$ 0.92
Net income per weighted average share, diluted attributable to EMC Corporation common shareholders	$ 1.23	$ 1.10	$ 0.88
Weighted average shares, basic (in shares)	2,093,372	2,055,536	2,055,959
Weighted average shares, diluted (in shares)	2,205,639	2,229,113	2,147,931