I know this is old but I will reply anyways in case anyone can be helped by it:
The best way from CDG to Marriott's Village d'lle-de-France is by driving. The latest Garmin GPS will get you there just fine. The autoroutes (freeways) in France are just the best. The drivers are very courteous. People that drive fast drive in the fast lane and people that drive slow drive in the slow lane. If you are a slow driver and get in the fast lane, please pull over and let the person pass you if he/she flashes the light at you. I found people on the freeways quite courteous. (unlike California where I am from) where people get in the fast lane and drive below the speed limit. Also when you are courteous to motorcyclist, they do this "leg stretch" thing; That is their way of saying thank you. (They dont need to go number 1.