Promotes a range in an outline (that is, decreases its outline level). The specified range must be a row or column, or a range of rows or columns. If the range is in a PivotTable report, this method ungroups the items contained in the range.
If the active cell is in a field header of a parent field, all the groups in that field are ungrouped and the field is removed from the PivotTable report. When the last group in a parent field is ungrouped, the entire field is removed from the report.