The USA’s largest bank is JP Morgan.
https://www.jpmorganchase.com/
It has a huge balance sheet:-
https://www.jpmorganchase.com/corporate/investor-relations/document/financial-highlights-2018.pdf
Total Assets $2,622,532 Billion = $2.622 Trillion.
Total Deposits $1,470,666 Billion = $1.470 Trillion
Market capitalisation $319,780 Million = $319 Billion