DTE Energy's GAAP net income for 2021 was $0.903 billion, down 34.1% from $1.371 billion in the previous year. Revenue increased 31% to $14.964 billion, compared to $11.423 billion a year earlier.
DTE Energy's GAAP net income for 2021 was $0.903 billion, down 34.1% from $1.371 billion in the previous year. Revenue increased 31% to $14.964 billion, compared to $11.423 billion a year earlier. 
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