help with group query

Hi everyone,
I need to make a query that show me details and grouping information at the same time.

This is my original table :

id who money
1 Henry 10
2 John 5
3 John 10
4 Mario 20

And I want to obtain this information:

id who money
1 Henry 10
Sum 10 <-- Groupping
2 John 5
3 John 10
Sum 15 <-- Groupping
4 Mario 20
Sum 20 <-- Groupping

I'm thinking that I can use a group by - rollup sentece.
But I don't know how to do it.
Any ideas?

Thanks in advance for your help
Regards

Code:

---

Connected to:
Oracle9i Enterprise Edition Release 9.0.1.1.1 - Producti
With the Partitioning option
JServer Release 9.0.1.1.1 - Production

SQL> SELECT * FROM your_table;

        ID WHO                      MONEY
---------- -------------------- ----------
        1 Henry                        10
        2 John                          5
        3 John                        10
        4 Mario                        20

SQL> SELECT id, who, SUM(money) FROM your_table
  2  GROUP BY rollup(who, id);

        ID WHO                  SUM(MONEY)
---------- -------------------- ----------
        1 Henry                        10
          Henry                        10
        2 John                          5
        3 John                        10
          John                        15
        4 Mario                        20
          Mario                        20
                                        45

8 rows selected.

---

Those rows in bold are subtotals (the last one is grandtotal) that were added by ROLLUP.

Great!! You're a master!
You have saved my life

Thank you very much

Regards.