Are AdWords Keyword/AdGroup/Campaign IDs unique across multiple accounts?

Question

In the Google AdWords API, I believe Keyword IDs and AdGroup IDs (and obviously Campaign IDs) are unique within an account (as opposed to the Keyword ID only being unique within

Answer 1

concerning campaign id, adgroup id, ad id and keyword id (criterion id) the clear and exact answer is to be found in the adwords api docs: https://developers.google.com/adwords/api/docs/guides/working-with-objects

It says that only campaign id and adgroup id are globally unique. Because there is no word said about accounts i think global is meant to be as 'per account'. I don't think there is something unique across different accounts.