ENGLEWOOD, Colo.--(BUSINESS WIRE)--The Western Union Company (NYSE: WU) today reported financial results for the 2015 second quarter and updated its full year financial outlook, which was previously provided on April 30, 2015. On a constant currency basis, second quarter revenues increased 4% compared to the prior year period. Reported revenues declined 2%, primarily due to the impact of the stronger U.S. dollar. Earnings per share, excluding the impact of the previously announced Paymap settle