I raised a question with Ilford a few years back, asking whether XP2 could be developed in ID11. The answer is 'yes' - and it worked for me (not as good, though as C41). As this chromogenic b&w film requires the same development times as colour neg film and uses the same C41 chemistry, I see no reason why you could not develop colour neg film in ID11 as well, using the times Ilford suggested I trried, as follows - 18 minutes at 1:1 dilution, 20 degrees C, normal agitation (say, 3 agitations every minute).
Worth a try!
Ray