system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If Snapchat hypothetically accepted Facebooks offer of $3 billion in cash, how would such a large amount of money be transferred?
gpt
Normal electronic payment would be fine.

In the UK we call them CHAPs, Americans would probably call them wire transfers.

Regardless, you can transfer really big amounts of money this way. Really big. Billions are unusual but by no means unprecedented.

Here in the UK, CHAPs payments are the Bank Of England's own settlement method, and the way large treasury deals are done. Settlement payments between banks for £100m plus happen everyday. 

It's also the system used to buy houses, but the method is exactly the same.

Source: Over ten years in banking, specialising in payments.