Discover Financial Services' net income under GAAP for 2020 was $1.141 billion, down 2.6 times from $2.957 billion in the previous year. Net interest income fell 2.5 percent to $9.23 billion from $9.463 billion a year earlier.
Discover Financial Services' net income under GAAP for 2020 was $1.141 billion, down 2.6 times from $2.957 billion in the previous year. Net interest income fell 2.5 percent to $9.23 billion from $9.463 billion a year earlier. 
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