Below is an example of the actual data you have access to in a formula, and the structure of that data. 

{
    "trigger": {
    },
    "steps": {
        "stepname": {
        }
    },
    "config": {
        "configPropertyName":"value",
        "instanceId":1256246
    },
    "info": {
        "formulaExecutionId": 55383381,
        "formulaId": 19959,
        "formulaInstanceId": 222911,
        "formulaInstanceName": "instance name",
        "formulaName": "my formula name",
        "formulaStartTime": 1529340551593
    }
}