sentences:  The $5 billion merger, completed in 1995, created First Chicago NBD Corporation, the 7th largest bank in the US with $72 billion of assets, and was also a leader in the issuance of credit cards.While NBD was the nominal survivor, the merged bank was headquartered in Chicago.In April 1998 First Chicago NBD announced a $30 billion merger with Banc One Corporation of Columbus, Ohio.