Another portion of that AP article noted by Shannen earlier:
Instead, the cuts that actually will make it into law are far tamer, including cuts to earmarks, unspent census money, leftover federal construction funding, and $2.5 billion from the most recent renewal of highway programs that can’t be spent because of restrictions set by other legislation. Another $3.5 billion comes from unused spending authority from a program providing health care to children of lower-income families.
About $10 billion of the cuts already have been enacted as the price for keeping the government open as negotiations progressed; lawmakers tipped their hand regarding another $10 billion or so when the House passed a spending bill last week that ran aground in the Senate.
For instance, the spending measure reaps $350 million by cutting a one-year program enacted in 2009 for dairy farmers then suffering from low milk prices. Another $650 million comes by not repeating a one-time infusion into highway programs passed that same year. And just last Friday, Congress approved Obama’s $1 billion request for high-speed rail grants — crediting themselves with $1.5 billion in savings relative to last year.