Sony Corp., Tokyo, said it completed its...

Sony Corp., Tokyo, said it completed its previously announced acquisition of the CBS Records Group from CBS Inc. for $2 billion . . . American Airlines said it will match fare cuts of 15% to 20% initiated by Continental Airlines and matched earlier by several other airlines . . . Chile’s military government devalued its peso by 4% and ordered an across-the-board reduction of customs duties by 15% to 20%.