Imho you overstate your point. You don’t mention Google, Facebook and Tesla to name but three US companies. And you couldn’t compare those to Gazprom. These and other American companies will keep having an influence on the world.
Thomas Friedman published a book in 2011 with the telling title THAT USED TO BE US, the title being part of a quote from an Obama speech from 2010.
What seems really rotten is American democracy which was the core asset of American pride and exceptionalism for more than two centuries.