(for those who care) to the best of my knowledge, "2.3 trillion in transactions was un accounted for" means that it cannot be vouched for up to audit standards(not that it is missing necessarily) it could be dirty, it could be the records were ill kept, could be black budget... i doubt they ever found out
also the 2.3 trillion in transcations is a far cry from 2.3 trillion in capital ... though your number looks somwhere close to accurate in terms of scale