Keychain Help

Ive noticed recently that sometimes my passwords aren't saving across devices. For example, they show up on my iPhone, but I will get on my mac and go to the website and the password isn't set up. Some seem to be there while others aren't and it prompts me to save them on the mac. I have keychain on on both devices and under the same account. The only thing I can think of is that when I go into settings on my mac "Safari" isn't checked on the list of iCloud items. Keychain is obviously checked. Do i need to have safari checked too?

Thanks

--- Post Merged, Aug 10, 2016 ---

Ok, so I just looked and the passwords saved in safari on my mac are very different than the ones on my phone. Am I not understanding Keychain? I thought the point was to have them saved on any device, then they sync to all others?