What does balance_transaction.id in data extraction from Shopify indicate?

I am using a 3rd-party tool for data extraction (Hevo) from Shopify and I was wondering what these two fields point to?

  1. receipt.charges.data.payment_method_details.card.network_transaction_id
  2. receipt.charges.data.balance_transaction

I imagine the ‘network_transaction_id’ has something to do with the actual credit card transaction network (please correct me if I am wrong), however, the “Balance_transaction” contains two fields:

a) “id”: “”,
b) “object”: “balance_transaction”

What other fields the ID points to (i.e. what is the purpose)? Thanks!