90. Freeport-McMoRan Copper & Gold, Inc. and Phelps Dodge Corp.
> Total transaction value: $22.9 billion
> Transaction announced: 2016

Source: zodebala / iStock Unreleased via Getty Images
89. Liberty Global, Inc. and Virgin Media, Inc.
> Total transaction value: $23.1 billion
> Transaction announced: 2013

Source: HJBC / iStock Editorial via Getty Images
88. Sanofi-Aventis SA and Genzyme Corp.
> Total transaction value: $23.5 billion
> Transaction announced: 2010

Source: Lya_Cattel / Getty Images
87. CVS Corp. and Caremark Rx, Inc.
> Total transaction value: $23.8 billion
> Transaction announced: 2006

Source: ArtBoyMB / iStock Unreleased via Getty Images
86. Wachovia Corp. and Golden West Financial Corp.
> Total transaction value: $23.9 billion
> Transaction announced: 2006

Source: jetcityimage / iStock Editorial via Getty Images
85. CenturyLink, Inc. and Qwest Communications International, Inc.
> Total transaction value: $23.9 billion
> Transaction announced: 2010

Source: Mariakray / iStock Editorial via Getty Images
84. Microsoft Corp. and LinkedIn Corp.
> Total transaction value: $24.5 billion
> Transaction announced: 2016

Source: RiverNorthPhotography / iStock Unreleased via Getty Images
83. Phillips Petroleum Co. and Conoco, Inc.
> Total transaction value: $24.6 billion
> Transaction announced: 2001
82. Becton, Dickinson & Co. and C. R. Bard, Inc.
> Total transaction value: $24.9 billion
> Transaction announced: 2017

Source: leskas / Getty Images
81. Transocean, Inc. and GlobalSantaFe Corp.
> Total transaction value: $25.0 billion
> Transaction announced: 2007
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