15 billion dollars
Today I sold my watch for 15 billion dollars.
15 billion Zimbabwean dollars.
When the Zimbabwean economy collapsed in 2009, the highest note printed was for 1 trillion dollars. Shortly thereafter, the country switched to the American dollar. The trillion dollar notes are now sold to tourists for about $5 USD. The ten and five billion dollar notes go for a bit less.
One of the touts at Victoria Falls took a liking to my plastic watch and offered me 15 billion for it. How could I say no to an offer like that?