I've never tried to show my ID anywhere outside of an airport. I've used it a bunch with no problems except once at a small airport where the TSA agent said my airline ID wasn't valid because it had no expiration date on it. I then tried my airport badge with an expiration because I was curious and she still said no she needs a drivers license. That's the only problem I've ever had.
Straight from the TSA website:
Acceptable IDs | Transportation Security Administration
Both airline and airport ID badges are acceptable
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