Understanding and tweaking AWS policies for job functions
Sure you can have a look at the JSON policy documents. On that page that you link to (AWS Managed Policies for Job Functions) click the Policy you're interested in while being logged to your AWS account and it will take you to the policy definition. 

E.g. if you click to AdministratorAccess it will open the IAM Policies page and show you the JSON:



Hope that helps :)