Home foreclosure caused huge reduction in credit line....normal?

Sorry to say I am just another statistic w/ a foreclosed home. I had a 1st and 2nd on the home, the 2nd being a HELOC. Today I just received a notification from my credit card company (not w/ the same bank as the foreclosed loans) notifying me they reduced my credit line to only $1000. I have been a loyal customer for over 10 years with a credit line of $15000 and had never had a late payment. Basically this foreclosure is my first credit flaw ever. I even held a 811 credit score before hand. Is it normal for credit companies to do this after a foreclosure is now on my report?