Current Account reflects the net trade balance (the difference between exported and imported goods and services), the net factor income of US residents (such as interest, dividends, etc.) and net transfer payments (e.g. foreign donations) to US residents.
In other words, the current account includes operations between US residents and non-residents in relation to goods, services, primary (investment) and secondary (transaction) income.
The impact of the indicator on the US dollar may vary depending on current economic conditions. Most often the growth of the current account is seen as positive for the US dollar.