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Non-controlling Interest in VMware, Inc. - Additional Information (Detail) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Noncontrolling Interest [Line Items]      
Non-controlling interest in VMware, Inc. $ 1,079,985,000 $ 968,089,000 $ 805,767,000
Voting power of VMware's outstanding common stock 97.00%    
Percentage of ownership interest in VMware, Inc. 79.00%