X0202 4 2007-02-27 false 0000811156 CMS ENERGY CORP CMS 0001179113 JOOS DAVID W ONE ENERGY PLAZA JACKSON MI 49201 true true false false President and CEO Common Stock 9807 I 401(K) Common Stock 2007-02-27 2007-02-27 4 M false 100000 6.35 A 609450 D Common Stock 2007-02-27 2007-02-27 4 M false 100000 8.12 A 709450 D Common Stock 2007-02-27 2007-02-27 4 S false 73787 17.7229 D 635663 D Common Stock 2007-02-27 2007-02-27 4 F false 26213 17.7229 D 609450 D Common Stock 2007-02-27 2007-02-27 4 S false 77866 17.7229 D 531584 D Common Stock 2007-02-27 2007-02-27 4 F false 22134 17.7229 D 509450 D 2003 Stock Options 6.35 2007-02-27 2007-02-27 4 M false 100000 0 D 2003-08-22 2013-09-21 Common Stock 100000 0 D 2002-Jul Stock Options 8.12 2007-02-27 2007-02-27 4 M false 100000 0 D 2002-07-31 2012-08-30 Common Stock 100000 0 D Catherine M. Reynolds, Attny-in-Fact 2007-03-01