How do I get to the Renaissance Paris Arc de Triomphe Hotel from the airport?

How do I get to the Renaissance Paris Arc de Triomphe Hotel from the Paris (CDG) airport? I would like to take the metro, but I do not know how. Please be specific. Thanks very much!!!!!How do I get to the Renaissance Paris Arc de Triomphe Hotel from the airport?
You can take the coach Les Cars Bleues of Air France departing from the gallery level (door 3) at the CDG airport, and take the coach 2 (to Porte Maillot - Etoile) This coach will stop at the Arc de Triomphe, so after that you can just walk to your hotel.How do I get to the Renaissance Paris Arc de Triomphe Hotel from the airport?
Its really quite simple.





There is a station of the RER (a light rail system that is integrated with the Metro) at CDG.





Buy your ticket at the ticket booth. You need only say ';Paris'; to the ticket seller since all destinations inside Paris are the same price.





You will place your ticket into a turnstile as you enter. Be sure to retrieve the ticket (which will pop up from another slot at the top of the turnstile. You need it to exit the station at your final destination.





Take any train and get off at the Chatelet-Les Halles station.





You then change RER lines and get on the RER A line going in the direction Le Vesinet-Le Pecq. The transfer does not require exiting the station and there is no additional cost.





The RER A will then take you to the Charles de Gaulle-Etoile station which is just a short walk to your hotel.





The entire trip will take under an hour and cost 8.40 euros.