html – Does adding a “title” attribute to the “label” element instead of the “input” harm accessibility?

I’m creating an HTML interface that has an input text field with a label attached. The label has a short name for the input and I want a more detailed description to appear as a popup for visual users, but also to be accessible for screen readers.

This can be done with the title attribute, but if I attach the title to the input element, it will only show when hovering over the input. If I attach it to the label element, then both the label and the input can be hovered to see the tooltip.

I am wondering if this will impact screen readers somehow, and read the title out in a way that could confuse non-visual users.

Here’s an example of the code:

<label title="Some extra details">
    Your Input:
    <input type="text" />

I haven’t found any such usage in the W3 docs, but I there was one suggestion from StackOverflow. I’m just concerned it might impact accessibility.