Sears sees $1.7 billion revenue loss — but will turn profit of at least $140 million thanks in part to tax law

Struggling Sears Holdings Corp. saw sales in stores open at least a year drop 15.6 percent for the fourth quarter — its worst showing for the crucial holiday period since at least 2012.

Sales were down 18.1 percent at domestic Sears stores open at least a year and 12.2 percent at Kmart stores for...