What details for organizations *must* you have?

[(E)]

Originally Posted by Mailanka

I've found everything beyond this superflous, and you don't even need to hit all of these points for your organizations (especially if you're willing to improvise, or you're dealing with a highly generic or well-known organization, like the mafia or a typical US police force).

Enough flavour so you can improvise consistently plus any common but complicated (game slowing) abilities that are likely to come up.