**To detach an instance from an Auto Scaling group**

This example detaches the specified instance from the specified Auto Scaling group::

   aws autoscaling detach-instances --instance-ids i-93633f9b --auto-scaling-group-name my-asg --should-decrement-desired-capacity
   
The following is example output::

  {
    "Activities": [
        {
            "Description": "Detaching EC2 instance: i-93633f9b",
            "AutoScalingGroupName": "my-asg",
            "ActivityId": "5091cb52-547a-47ce-a236-c9ccbc2cb2c9",
            "Details": {"Availability Zone": "us-west-2a"},
            "StartTime": "2015-04-12T15:02:16.179Z",
            "Progress": 50,
            "Cause": "At 2015-04-12T15:02:16Z instance i-93633f9b was detached in response to a user request, shrinking the capacity from 2 to 1.",
            "StatusCode": "InProgress"
        }
    ]  
  }
