Disneyland (Euro Disney) is about 35 Km east of Paris. From center of the city is 45 min Taxi ride, in normal traffic condition. You can also take " RER line A " to Disney from the center of Paris. Disney is 45 Km from CDG Airport. There is no direct RER (train) line between CDG and Disneyland, so to go by train you need first take " RER B " to Paris , then in " Chatelet station" change and take " RER line A" to Disneyland . There are always Taxis and shuttles available from CDG airport to Disney .
Of course taxis are faster and more convenient.
RER line B , ticket from CDG to center of paris cost about 10 euros.
RER line A (train), ticket from center of Paris to Disneyland is about 8€.
Taxi fare from CDG to Disney is about 60€ . Taxi fare from center of Paris to Disney is about 55€.
Taxi fare from CDG airport to center of Paris is about 50 €.