As of the bill's passage into law in 2010, CBO estimated the legislation would reduce the deficit by $143 billion[185] over the first decade, but half of that was due to expected premiums for the C.L.A.S.S. Act, which has since been abandoned.[186] Although the CBO generally does not provide cost estimates beyond the 10-year budget projection period (because of the great degree of uncertainty involved in the data) it decided to do so in this case at the request of lawmakers, and estimated a second decade deficit reduction of $1.2 trillion.[180][187] ...
As of the bill's passage into law in 2010, CBO estimated the legislation would reduce the deficit by $143 billion[185] over the first decade, but half of that was due to expected premiums for the C.L.A.S.S. Act, which has since been abandoned.[186] Although the CBO generally does not provide cost estimates beyond the 10-year budget projection period (because of the great degree of uncertainty involved in the data) it decided to do so in this case at the request of lawmakers, and estimated a second decade deficit reduction of $1.2 trillion.[180][187] ...
Source: http://en.wikipedia.org/wiki/Patient_Protection_and_Affordab...