Please someone help me with the following request.

I have list of data

SELECT * FROM DUMMY_DATA;

id    value
------------
1     10
1     11
2     100
3     5
3     9
...
1000  1
1000  20

I need to group IDs into several ranged groups and calculate sum of IDs values for a range.
For instance

IDs_range                   sum_of_values
-----------------------------------------
0-10   (up to 10)         xxxx
11-20  (up to 20)         yyyy
...
1001 - 2000 (up to 2000)  zzz

If I had not many ranges I would use CASE expression as described in the topic Oracle: how to “group by” over a range?

SELECT CASE 
         WHEN age <= 10 THEN '1-10' 
         WHEN age <= 20 THEN '11-20' 
         ELSE '21+' 
       END AS age, 
       COUNT(*) AS n
FROM age
GROUP BY CASE 
           WHEN age <= 10 THEN '1-10' 
           WHEN age <= 20 THEN '11-20' 
           ELSE '21+' 
         END

But I have a hundred of ranges and using CASE expression in this case is not so usable.

I know how to build a range table

WITH IDS_RANGES AS (
SELECT COLUMN_VALUE AS ID_RANGE FROM TABLE(SYS.DBMS_DEBUG_VC2COLL(10,20,....,1000,2000)
)
SELECT ...

but I can’t figure out how to QUERY from both a range table(IDS_RANGES) and DUMMY_DATA table to build the desirable result.