In 2013, Levy signed a three-year, $9.75 million contract, and is owed $3.5 million this season. The terms of his extension beyond 2015 have not been disclosed.
Lions general manager Martin Mayhew had been in ongoing talks about contract extensions with agents for both Levy and defensive tackle Haloti Ngata. Extending Levy was among Mayhew's off-season goals.
"He's a phenomenal talent," Mayhew said of Levy to ESPN.com earlier Wednesday. "We want to have him around. We're not trying to get him on the cheap."
The Lions selected Levy, 28, in the third round of the 2009 NFL draft, and he has played for them in all six seasons of his career. The Lions' star led the league with 117 solo tackles in 2014, and has started all 16 games for Detroit in the past two consecutive seasons.
The Lions finished the 2014 season with an 11–5 record, and lost to the Cowboys in an NFC Wild Card game.
- Erin Flynn