Matt Stafford threw for 373 yards and three 10 decision over San Diego at Ford Field.

Calvin Johnson totaled 102 yards and a score on four receptions for the Lions (10-5), who will reach the postseason for the first time since 1999.

Kevin Smith posted 49 yards and a touchdown on 15 carries with a TD reception, as Detroit posted a double-digit win total for the first time since going 10-6 in 1995.

Philip Rivers completed 28-of-53 passes for 299 yards, one touchdown and two interceptions for the Chargers (7-8), who saw their three-game win streak come to an end.

Malcom Floyd totaled 95 yards on six catches with a touchdown grab, and Ryan Mathews gained just 58 yards on 11 carries in defeat.