DETROIT — The Green Bay Packers and Detroit Lions are both headed to the postseason.

One of those teams looks like a threat to make a serious run.

Aaron Rodgers threw four touchdown passes, and the Packers calmly dispatched Detroit 31-24 on Sunday night to win the NFC North title. Green Bay finished the regular season with six consecutive victories, and although the Lions made the playoffs as a wild card, they frittered away the division title with three straight losses down the stretch.

The Packers and Lions were both safely in the playoffs by the time their game kicked off, because Washington lost to the New York Giants earlier in the day. But there was still a division title at stake in the Green Bay-Detroit game, and the winner would enter the postseason on a much happier note.

“Winning games like today gives you great confidence. It gives you momentum,” Packers coach Mike McCarthy said. “We clearly understand where we were six weeks ago, and where we are today.”

Green Bay (10-6) starts its postseason at home against the Giants next weekend, and Detroit (9-7) plays at Seattle.