Will i have to pay taxes on settlement

 I retired at 55 and was guaranteed insurance from my company till I received Medicare at 65. At 60 years old. The company I worked for dropped all retired people insurance. I bought insurance for myself through Obama Care. Are union filed a grievance against the company and won the case. I'm now on Medicare. There is a small cash settlement for each person who lost there company insurance. Will I have to pay income tax on that cash settlement???