NEW YORK (Reuters) - Visa and Mastercard ( MA ) have reached a settlement to cap credit card fees for retailers, resulting in an estimated $30 billion of savings over five years.

The antitrust settlement announced on Tuesday is one of the largest in U.S. history, and upon court approval would resolve claims in litigation that began in 2005.

Retailers had accused Visa and Mastercard ( MA ) of overcharging them on interchange fees, or swipe fees, when shoppers used credit or debit cards, and barring them through "anti-steering" rules from directing customers toward cheaper means of payment.

The settlement would lower interchange rates by four basis points (0.04 percentage points) in the United States for three years, and cap rates for five years.

It would also remove anti-steering restrictions and enable competitive pricing, lawyers for retailers said.