億 is a Japanese kanji written with 15 strokes, listed here under the keyword “hundred million”. It is built from 亻 (person) and 意 (idea). In Remembering the Kanji by James W. Heisig it is frame 1058.
On KumiJi Glyph Explorer, open the parts search and type “person” + “idea”. 億 is among the results, together with every other character containing the same shapes.
Open 億 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.