You can assume that any company at a large scale will not want to divulge any information unless absolutely necessary. Doesn't matter if you or I think that it might not need to be secret or might not be competitive. Unless there is both an internal push, a need and a sort of proof dat the information can be released, it will never happen. You'll usually find thing that are simplified or aggregated for PR and marketing, or things that are required for legal reasons, but everything else stays internal.