How has the position of the United States changed in the world after World War II?

How has the position of the United States changed in the world after World War II? Consider different areas: politics, economics, etc.

The US economy was the most powerful in the world, it produced up to 45% of all products of all countries together. Also, the United States possessed the most powerful reserves: raw materials, weapons, population, money. And she was not exhausted by the hostilities. In fact, the territory was not affected by the war and only developed. Therefore, the US Administration has been pursuing a course of establishing hegemony throughout the world and eliminating any resistance, both political and economic. However, over time, the USSR was restored, which became the main enemy, and new centers of economic power appeared. And the overall share of the United States began to decline noticeably.