Discover Financial Services announced unaudited earnings results for the second quarter ended June 30, 2021. For the quarter, the company reported net interest income was $2,299 million against $2,190 million a year ago. Net income was $1,698 million against net loss of $368 million a year ago. Basic per share was $5.56 against basic loss per share of $1.2 a year ago. Diluted per share was $5.55 against diluted loss per share of $1.2 a year ago.