American described the twin deals as "the largest aircraft order in history".
Its parent company AMR Corporation added that the new single-aisle planes would "transform" American's fleet.
In a victory for Airbus, the airline moves away from an all Boeing policy when the new aircraft are delivered between 2013 and 2022.
http://www.msnbc.msn.com/id/43822888/ns/business-us_business/t/american-places-massive-billion-jet-order/#.TwjgmIHeJqc
http://www.bbc.co.uk/news/business-14227469
Click on the link below to see the current fleet profile
http://www.aa.com/i18n/amrcorp/corporateInformation/facts/fleet.jsp
