Berkshire Hathaway Chairman and CEO Warren Buffett told the FOX Business Network that S&P's downgrade of the United States' triple-A credit rating "doesn't make sense." 

"I don't get it," Buffett told FBN late Friday night. In fact, Buffett reaffirmed his belief in the quality of the United States' credit telling FBN, "In Omaha, the U.S. is still triple A. In fact, if there were a quadruple-A rating, I'd give the U.S. that." 

Buffett told me tonight that Berkshire Hathaway's T-bill exposure is significant. 

"We just filed our 10Q and we have $47 billion in cash and cash equivalents. Well over $40 billion of it is in short end T-bills. (Tonight's S&P downgrade) doesn't tempt me to sell. We'll stay right there."

Buffett sounded no alarm bells about the downgrade, going so far as to say it wouldn't have much effect on the markets Monday. "If nothing else takes place, meaning, if all other variables hold and there isn't say, a new problem in Europe, it won't make any difference."

"Think about it. The U.S., to my knowledge owes no money in currency other than the U.S. dollar, which it can print at will. Now if you're talking about inflation, that's a different question."

When asked if he felt the U.S. deserved the downgrade, Buffett said, "No." He took a swipe at S&P, quipping, "Remember, this is the same group that downgraded Berkshire."

The downgrade has prompted some economists and market watchers to warn that interest rates may rise, the dollar may weaken and stocks could see a sell-off. When asked whether he was worried about market gyrations Monday, Buffett said, "No."

Liz Claman joined FOX Business Network (FBN) as an anchor in October 2007.  She anchors Countdown to the Closing Bell which is presented from 3-4pm EST as well as co-anchors After the Bell from 4-5pm EST.