Health insurance giant Aetna pulled in more than $63 billion in 2016 revenues and $2.9 billion in earnings despite a year that would lead to the demise of its planned $34 billion merger with rival Humana. The company also made waves as part of the insurer exodus from the individual insurance sector (including Obamacare marketplaces), which led to almost $700 million in losses between 2014 and 2016, according to Aetna.