I bet if you looked at all the possible universes following World War 2, the Marshall Plan and ensuing US hegemony sorts fairly high even when accounting for the entire world.
what about the Palestinians? the Syrians? The Yememi? The Chileans? The Colombians? The Vietnamese? The North Koreans?
take a look at a history of US meddling in the world... and consider sort of world we might have it the US military and its industry (and those of its allies) hadn't nosed it's way into all corners of the world pushing for hegemony of "Democracy", the US dollar, and their economic interests.
In a whole bunch of possible outcomes you have Soviet failure everywhere.
> In a whole bunch of possible outcomes
in a whole bunch of actual outcomes, you have US failure everywhere