There’s no dispute that a $48.9 billion merger announced in 2015 between health insurers Anthem Inc. and Cigna Corp. imploded two years later over antitrust concerns. Now, the question is whether one owes the other billions for the deal’s failure.
A Delaware judge will start the process of deciding that pricey dispute Monday in a trial of dueling lawsuits by Anthem and Cigna over the merger meltdown.