"It's got to be 400 billion instead of million unless this is only referring to Swedish aid."
The figure mentioned in the headline is an estimation of what the Scandinavian countries altogether have pledged to reserve for projects concerning foreign aid, namely 1% of their total GDP.
The Swedish GDP is a little less than 1/3 of the total Scandinavian one of appr $ 11 300 million, namely $358,810 million (according to IMF statistics).
1% of the Swedish GDP is therefore appr $3588 million.
Be careful not to confuse SER with USD.
This is my source regarding GDP statistics of the Scandinavian countries:
http://en.wikipedia.org/wiki/List_of_countries_by_GDP_%28Nominal%29
It's possible I made some mistake above. I'm not good at numbers and huge amounts of money.
Perhaps I should be entrusted with issues of handing out foreign aid?