The Treasury has disowned the contents of the Intergenerational Report being used by the government to claim that it is a better economic manager than Labor.

Asked about the political content of the report, Treasury deputy secretary Nigel Ray told a Senate hearing the content was "a matter for the government".

In Parliament, Prime Minister Tony Abbott continued to claim the report was a Treasury document, pointing to its table comparing Greek debt to what it said would have been Australia's government debt had Labor's policies been continued.

"I know they don't like looking at the expert document produced by the Treasury but here it is," he said, holding aloft.

Mr Hockey also described it as a Treasury document on its release, telling a radio interviewer Labor hadn't bothered to ask questions about it in Parliament.