The dollar index fell 0.12 percent from 78.65 to 78.53.
Gold and oil prices also lost some ground. In late afternoon trading, gold prices on the Comex division of the New York Mercantile Exchange shed $1.40 to $1,351.60. Crude oil prices for January delivery lost 34 cents to $81.61 per barrel.
The dollar was mostly lower with some gains. The U.S. standard rose against the Australian dollar, the South Korean won, the British pound and the Russian ruble. It also rose against the South African rand. It fell against currencies from India, Taiwan, Sweden, Switzerland and Denmark.
The euro rose to $1.3672 from Thursday's $1.3628. Against the yen, the dollar fell to 83.48 yen from Thursday's 83.51 yen.
The Australia dollar fell to $0.985 from $0.9883. Against the Hong Kong dollar, the U.S. standard dropped to 7.7536 HKD from 7.7544 HKD.
The dollar rose to 1,131.15 South Korean won from Thursday's 1,130.84 won.
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