The Mavericks, playing without starting forwards Dirk Nowitzki and Caron Butler, used a balanced attack to break a three-game losing streak. Jason Terry scored 18 points, Tyson Chandler added 14 points and 14 rebounds, and Jason Kidd had 10 points and eight assists.
The Cavaliers have lost seven straight and 17 of 18. Point guard Mo Williams returned after missing two games because of a strained hip. Cleveland played without two starters, center Anderson Varejao (broken cheekbone) and guard Daniel Gibson (bruised thigh).
Antawn Jamison led Cleveland with a season-high 35 points, and Ramon Sessions added 19.
Nowitzki, who missed his fourth straight game, leads the Mavericks in scoring at 24.1 points per game, while Butler is third at 15.0. The Mavericks didn't need either player Sunday.
Butler suffered a knee injury Saturday night in Milwaukee and could be out at least a couple of months. He's scheduled to have an MRI, which may be performed Monday.
Marion, who missed Saturday's game against Milwaukee with a thigh injury, made 11 of 16 from the field while Stevenson hit five 3-pointers. Chandler made all six of his field goal attempts while Terry was 8 of 14 from the field.
The Mavericks, who improved to 12-2 on the road, scored the first eight points and led 21-7 in the first quarter. The Cavaliers led briefly early in the second period, but Dallas regained control. The Mavericks' biggest lead of the half was 49-34 late in the second quarter.
Dallas built a 17-point lead in the second half and wasn't seriously threatened in the final two quarters.