Quote from Martinghoul:
Yet another stupid number... There's a whole ton of threads talking about the reasons it's wrong to use notional quantities when talking about derivatives. It's completely meaningless.
As to the Harvard example, that's also total bollox. Harvard's swaps were hedging its floating rate issuance, which is what many other entities do. They lost on the hedge, but their losses were offset by the improvement in their funding costs.
The moral of the story is that journalists use large numbers, because they get paid more if they shock. Take the numbers you see with a grain of salt.