How do I stop sharing call history between two iPhones (one mac)

I have one Apple ID and use it on 5 devices: 2 iPhones, 2 iPads and one iMac. It would be certainly painful to maintain 5 separate AppleIDs simply because there are some items i do not wish to synch between devices, yet other items that I do wish to synch. I cannot control this, so everything is shared. Until apple resolves this I guess I am in the same boat as everyone else (one solution fits all, right?) I just have to keep in mind that some of the incoming calls I am being alerted about are from my secondary phone, or some from my primary phone will show up on the secondary phone. What is weird is that, even though I made the call, outgoing, from my primary phone, it showed up on my secondary phone in red as if it was a missed incoming call. This led me to believe someone had contacted me and no little embarrassment when I called them "back".