When text is copied from one Word document to another or from a Web page into a Word document, the original formatting of the copied text may not be removed. One way to get rid of the formatting is to use the CTRL+Spacebar keys to change it to plain text.
Copy the desired text into your Word document. Highlight the new text (CTRL+A to select the whole document) and press CTRL+Spacebar. This will automatically convert it to plain text.
Alternately, you can select a block of text and press CTRL+SHIFT+N to remove all the formatting including bullets, paragraphs and fonts.