Citibank is one of the largest full service banks in the world offering an unparalleled range of products and services... Citibank is one of the largest full service banks in the world offering an unparalleled range of products and services... Citibank is one of the largest full service banks in the world offering an unparalleled range of products and services... Citibank is one of the largest full service banks in the world offering an unparalleled range of products and services... Citibank is one of the largest full service banks in the world offering an unparalleled range of products and services...