Earnings per Share (Tables)

9 Months Ended

Nov. 26, 2011

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table presents a reconciliation of the numerators and denominators of basic and diluted earnings per share attributable to Best Buy Co., Inc. (shares in millions):

	Three Months Ended				Nine Months Ended
	November 26, 2011		November 27, 2010		November 26, 2011		November 27, 2010
Numerator
Net earnings attributable to Best Buy Co., Inc., basic	$	154	$	217	$	467	$	626
Adjustment for assumed dilution:
Interest on convertible debentures, net of tax	1		2		4		4
Net earnings attributable to Best Buy Co., Inc., diluted	$	155	$	219	$	471	$	630
Denominator
Weighted-average common shares outstanding	359.7		397.1		373.1		410.3
Effect of potentially dilutive securities:
Shares from assumed conversion of convertible debentures	8.7		8.8		8.7		8.8
Stock options and other	0.4		1.9		0.6		1.6
Weighted-average common shares outstanding, assuming dilution	368.8		407.8		382.4		420.7
Earnings per share attributable to Best Buy Co., Inc.
Basic	$	0.43	$	0.55	$	1.25	$	1.53
Diluted	$	0.42	$	0.54	$	1.23	$	1.50