My BAD! Let me start over.
I "backup" my Outlook calendar & contacts on my computer to my iPad & iPhone using iTunes. So if I make a change on the calendar or contacts on either my computer or iPhone/iPad it will change the other.
Then I change the syncing process in iTunes to "Automatically Backup" iCloud on iTunes. ("Backup the most important data on your iPhone/iPad to iCloud")
The iCloud backup is what I have the question about. I want to know if I can delete the data I backup on iTunes to iCloud.