Ford also said that it was unable to maintain normal production in Venezuela with the availability of vehicle parts constrained. Also on Friday, diaper and tissue maker Kimberly-Clark Corp said it took a fourth-quarter charge of $462 million for its Venezuelan business. Kimberly-Clark blamed increased uncertainty and lack of liquidity in Venezuela for the move. Venezuela President Nicolas Maduro said on Wednesday he was shaking up the complex currency controls in the socialist-run country, where dollars are sold on the black market for about 184 bolivars to the U.S.