The fall has erased the dollar's gain in the past several days. US stocks also tumbled to a three-week low.
US Treasury bonds also fell to their lowest value since December 13.
The dollar previously hit multiyear highs earlier in December, leading to record high levels of US equity.
The fall in the dollar's value came in the wake of Washington announcing strict sanctions against Moscow in the midst of accusations that Russia interfered with the 2016 US Presidential election.
The Chinese yuan also reported a decrease in value. The Euro and the Japanese yen both reported increases.