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Subsequent Events	6 Months Ended
Subsequent Events	Aug. 04, 2012
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On August 19, 2012, Best Buy Co., Inc. appointed Hubert Joly, 53, as Best Buy's President and Chief Executive Officer, effective September 4, 2012. In connection with Mr. Joly's appointment, Best Buy entered into an employment agreement with Mr. Joly dated August 19, 2012.