HT4895: Using your Apple ID for Apple servicesLearn about Using your Apple ID for Apple services
Currently Being ModeratedFeb 4, 2013 12:59 PM (in response to Larajack)
To change your iCloud ID and/or password, go to Settings>iCloud, tap Delete Account, then sign back in with your updated credentials. Deleting the account will only delete the account and any iCloud data from your device, not from iCloud. Provided you are signing back into the same account and not changing accounts, your data will be synced back to your device when you sign back in.
Currently Being ModeratedFeb 4, 2013 6:31 PM (in response to Larajack)
Welcome to the Apple Community.
You can only change your alternate addrtess when it is a non-iCloud address.
Start here, change your country if necessary and go to manage your account