Warren Buffett is waiting to deploy a $137 billion cash pile for a future mega-deal. Here are Berkshire Hathaway's 10 biggest acquisitions so far.

· *Warren Buffett's Berkshire Hathaway hasn't closed a major takeover since 2016, and the holding company's ammunition for such a deal is building up.*
· *Berkshire has $137 billion to deploy for its next deal, and precedent shows Buffett shelling out tens of billions of dollars for his biggest acquisitions.*
· *Here are the...