Animation's remove property drop-down icon overlaps the input box

Steps to Repro:
1. Create a new or open attached project
2. Window > animation
3. Open an animation clip
4. Add transform > position property for animation
5. Set "X" parameter value to 99999999999 (Or any large number)

Actual Result:
1. Observe that the remove property drop-down icon overlaps the number

Environment:
Windows and Mac

Occurring with:
2018.3.0a6. 2018.2.0f2, 2018.2.0b1, 2018.1.0a9

Working with:
2018.2.0a1, 2018.1.6f1