my 2 cents. This is 100% a valid use case. Payroll systems' reporting is generally terrible for month-on-month comparisons and Netsuite's is better. With that said, I don't think there's a way to do this natively in Netsuite unless.
1. You create an "elimination"/"dummy" subsidiary of some kind, and post the detail in there (only giving access to this sub to the roles who should be able to see it)
2. You use custom transactions and limit their accessibility (I don't know custom transactions particularly well, but I think that would work)
If you went down the route of 1. above, then you would be posting payroll with blank employees in the "normal" subsidiary, then you would back that out and repost with employee details in a single journal in the "elimination" sub