Is it safe to assume, pretty much all company debt is in the form of corporate bonds and/or convertible bonds, and its not borrowed and owed to a bank or other institution. And the proxy for the cost on company debt is the yield on on offer on corporate bonds - a benchmark index or average for the market rate for AAA corporate bonds all the way down to lower graded bonds.
Moreover, where is the information for rates on corporate bonds?
This may seem simple, but I am lost as to find out how to source what a company is paying on its debt, making impossible to complete my WACC calculations.