About the same amount will be spent on the 2016 Olympics in Rio de Janeiro.
"The success of the Confederations Cup proves the correct choice of Brazil to host the World Cup," the sports ministry said in a statement to The Associated Press.
Speaking in Austria, Blatter said Wednesday if the protesters returned next year during the World Cup, FIFA would have to consider whether it made a mistake by giving the tournament to Brazil. Protests took place at all six Confederations Cup cities.
"If this happens again, we have to question whether we made the wrong decision awarding the hosting rights," Blatter told German press agency DPA.
FIFA has verified Blatter's comments were accurate.
FIFA has acknowledged it spoke with Brazilian officials after the Confederations Cup final, which closed with police and soldiers firing tear gas, shock bombs and rubber bullets to keep thousands of protesters away from the Maracana stadium. Brazil defeated Spain 3-0 in the final with tear gas wafting through the stadium during the first half.