NoelQuinn was named as the interim CEO of which of the following bank?

HSBC bank announced that the Chief Executive Officer (CEO) of HSBC John Flint steps down from his post after 1.5years and is to be replaced by NoelQuinn, head of HSBC's global commercial banking unit, as the new interim CEO. The replacement of the CEO has been made to meet the challenges. The lender bank also announced buyback of $1 Billion.