Very true that for most companies there are no pensions (DB plans) any longer; however, executives do get non qual DC plans outside of the standard dc plan. It allows them to squirrel away more money for their retirement based on rules governing them that are independent of the standard 401(k) rules. Additionally they ofc have their stock option plans that they pull from upon retiring.
Fore the most part, the only true pensions (DB) plans left are in government and social service roles (Fire, Police, Teaching, etc).