Looking forward: a detector for the future linear collider machine

The next accelerator-based high energy physics facility should be an e⁺ e^- Linear Collider (LC) allowing to explore with high sensitivity the full kinematical domain spanning from LEP energies up to the TeV scale. Its physics objectives set new challenges to detector performances, which need to be pushed beyond the accuracies they offer in LHC experiments. The purpose of the present contribution is to describe the experimental performances ambitioned in perspective of some major physics goals, and to provide an overview of the different techniques and detector components under study in the different parts of the worldwide scientific community involved.