General purpose and private label credit, debit and prepaid cards issued in the United States generated a combined $7.630 trillion in purchase volume in 2020, an increase of 0.6% over 2019. Merchants in the U.S. paid $110.32 billion in processing fees, a decrease of 5.2%, to accept those cards as payment for goods and services. Visa, Mastercard, Discover and American Express brand credit cards and store, gasoline, medical and other types of private label credit cards combined generated $3.854 trillion in purchase volume last year, down 9.0% from 2019. General purpose and private label cr...