On a 1999 deville
No matter the vehicle, Rotors & Bearing replacements are all basically the same. Put car on Jack Stands, remove wheel & break line assembly. Here's an exploded view for a more detailed look at what you're in for. Just make sure that you keep everything in order & put everything on in the same order you took it off only in Reverse. Replace any worn, striped, cracked, warped or broken pieces w/ ANY job you do & make sure to pack PLENTY of grease in your bearings!!!
The method for replacing front wheel bearings is almost the same no matter which car is it. It just requires a few household tools. See the link below for details: