Calendar sharing and visibility
Key Takeaway
Calendar access has two layers: the admin sets the org-wide calendar sharing level, and each user can give specific coworkers more access, but not less.
Calendar sharing controls how much coworkers can see of your calendar and whether they can add events to it. An admin sets the baseline. Each user can then share their own My Events calendar with specific coworkers.
The two layers of calendar visibility
Calendar visibility has two layers. First, an admin sets the org-wide calendar sharing level as the baseline for the whole org. Each user can then give specific coworkers more access through their own calendar sharing options. Calendar sharing options can make a calendar more available to others, but not less.
What a viewer can do on a coworker's calendar depends on both layers: the org-wide calendar sharing level and the access level that coworker granted.
Admins can't give coworkers access to event details. Users give coworkers more access, such as the Show Details access level, by changing their own calendar sharing options.