idea vs generality

idea and generality both are nouns.

Word	Noun	Adjective	Verb	Adverb
idea	Yes	No	No	No
generality	Yes	No	No	No

As nouns, generality is a hyponym of idea; that is, generality is a word with a more specific, narrower meaning than idea:

idea (noun)	generality (noun)
the content of cognition; the main thing you are thinking about	the quality of being general or widespread or having general applicability
your intention; what you intend to do	an idea or conclusion having general application
an approximate calculation of quantity or degree or worth
a personal view
(music) melodic subject of a musical composition