The greenback extended its losses broadly after a report showed the nation's housing market deterioration has not ended yet. The dollar posed for the biggest weekly decline versus the euro. US new home sales fell from 728k to 647k in November, the lowest level in 12 years. The weak data added to concern that the slowing housing market and tight credit market may impede the growth of the whole economy. The Fed is widely expected to lower interest rates by another quarter-percentage point to 4.00% at its January 30 policy meeting.Besides, subprime issue continues to be a threat that deters investors from high-yielding investments.