An example of standard line item extractor would be 0FI_GL_14. You can also read more about extractors at https://help.sap.com/saphelp_nw70/helpdata/en/45/4f8e8bbf3f4f63a5dd197ef7d53fa2/frameset.htm
you would need to get BW/Abap person to get it enhanced further for the split