United States one dollar bills are curled and inspected during production at the Bureau of Engraving and Printing in Washington.
The index is on course to clock a 0.3% drop for the week, just its third week of losses since July.
The European Central Bank last week snapped a streak of 10 straight rate increases, with the discussion shifting to how long the rates would stay high.
The Japanese yen was 150.41 per dollar, keeping traders nervy and looking for signs of intervention from Japanese authorities.
The Australian dollar eased 0.19% to $0.642, while the New Zealand dollar fell 0.24% to $0.588.
Persons:
Tapas Strickland, Flavio Carpenzano, Isabel Schnabel, Kazuo Ueda, Sterling
Organizations:
Engraving, U.S . Federal, NAB, Investor, Analysts, Fed, ECB, Investment, Capital Group, European Central Bank, Bank of Japan, Reuters, Bank of England, New Zealand
Locations:
United, Washington, U.S