CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 658,664	$ 642,114	$ 1,974,061	$ 1,736,295
Other comprehensive income (loss), net of taxes (benefits):
Foreign currency translation adjustments	15,553	(31,074)	7,856	(5,317)
Changes in market value of investments:
Changes in unrealized gains (losses), net of taxes (benefits) of $24,514, $(14,461), $52,834 and $(21,429)	43,663	(29,497)	86,424	(32,020)
Less: reclassification adjustment for net losses (gains) realized in net income, net of benefits (taxes) of $(1,499), $(1,795), $(3,852) and $(4,104)	(3,225)	(1,698)	(2,332)	(12,424)
Net change in market value of investments	40,438	(31,195)	84,092	(44,444)
Changes in market value of derivatives:
Changes in market value of derivatives, net of taxes (benefits) of $(6,035), $(39,938), $(21,081) and $(51,921)	(14,198)	(53,857)	(37,294)	(81,486)
Less: reclassification adjustment for net losses (gains) included in net income, net of benefits (taxes) of $1,006, $(1,556), $15,284 and $(31)	7,042	(10,891)	26,505	(217)
Net change in market value of derivatives	(7,156)	(64,748)	(10,789)	(81,703)
Other comprehensive income (loss)	48,835	(127,017)	81,159	(131,464)
Comprehensive income	707,499	515,097	2,055,220	1,604,831
Less: Net income attributable to the non-controlling interest in VMware, Inc.	(32,326)	(36,465)	(111,367)	(107,004)
Less: Other comprehensive income (loss) attributable to the non-controlling interest in VMware, Inc.	(1,032)	312	(1,453)	3,779
Comprehensive income attributable to EMC Corporation	$ 674,141	$ 478,944	$ 1,942,400	$ 1,501,606