> It will be interesting as rates return to normal and the Fed starts to shrink its balance sheet later this year.
The FED has predicted they'll do something about their amount of debt pretty much every month (except, I believe, 2 months) since 2009. Initially they were going to raise interest rates to 0.25% in 2012. They repeated that prediction, increasing the rate they were going to hike to (e.g. in 2015 the prediction was a raise to > 0.5% immediately). They finally "hiked rates"[1][2] in december 2016.
[1] With the VERY important caveat that there are no plans to reduce the balance sheet. In other words, as long as you owed billions to the fed 6 months ago, you're still lending for free to some extent. In other words, we can have an intelligent argument about whether interest rates are "really" above 0% or not.
[2] Also to be taken into account is that European, English, Japanese and Chinese interest rates are still negative. (QE = negative interest rates)
Excellent Graphic of FED predictions here: https://www.bloomberg.com/graphics/fomc-dot-plot/