Even if it adds up to $8 trillion, the final cost will be lower as US sells the assets it's now buying.
His team looks ready to spend at least $675 billion on projects to jolt the US economy.
But many exiting lawmakers also bring years of experience to the Obama administration.
Congress's rescue of financial institutions may prove the exception, as automakers learned last week.
The $15 billion draft bailout comes with strict conditions and immense federal oversight.
A task force's findings, urging US leadership, may dovetail with ideas of Obama administration.
Lawmakers say bankruptcy for Detroit's Big Three is 'not a viable option.'
Their CEOs visit Washington, trying a second time to win lawmaker approval for an auto industry bailout.