If you have Manager or Approval Plan authority over other users in the system, you will have access to Leave Calendar and Manage Leave Requests under the Leave menu. These areas allow you to search for, view and approve/decline all leave requests for the users in your groups or approval plans. Roles with Reporter authority can view the requests for users in their groups, but they will not see options to approve or decline them.
The Leave Management Calendar includes annual and monthly views which show summary information, as well as weekly and daily views which include the details of each request. Hovering over the totals for a given day in the monthly view will display the names of the users and the amount of leave they have requested.