Currency swaps have some key differences from interest rate swaps:
There are two notional principal amounts;
Each notional is in a different currency;
The notionals are exchanged at the beginning of the swap and then again at the end of the swap.
Periodic cash flow payments are made in different currencies.
Currency Swap Steps:
Motivation: Because a company may have a borrowing advantage in one currency but wishes to have the debt exposure in another currency, the company may wish to enter a currency swap.
Example: a U.S. company with high quality credit can borrow cheaply within the U.S. The company wishes to build a factory in Colombia, but does not have the credit history to borrow at comparable rates. The company may opt to finance the project with U.S. denominated debt and enter into a currency swap to receive U.S. and pay Colombian pesos.
Common users of currency swaps are borrowers who wish to convert their debt into a different currency.
Swaps are can be referred to as an "exchange of borrowings" because the parties have independently borrowed financial capital and through the use of a swap have agreed to exchange the proceeds.