CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Millions	Total	Total Best Buy Co., Inc.	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balances at Feb. 27, 2010	$ 6,964	$ 6,320	$ 42	$ 441	$ 5,797	$ 40	$ 644
Beginning balances (in shares) at Feb. 27, 2010			419
Increase (Decrease) in Shareholders' Equity
Net earnings, six months ended	438	409	0	0	409	0	29
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(153)	(83)	0	0	0	(83)	(70)
Unrealized gains on available-for-sale investments	14	14	0	0	0	14	0
Cash flow hedging instruments - unrealized gains (losses)	8	4	0	0	0	4	4
Total comprehensive income (loss)	307	344					(37)
Stock-based compensation	58	58	0	58	0	0	0
Stock options exercised (in shares)			3
Stock options exercised	90	90	0	90	0	0	0
Issuance of common stock under employee stock purchase plan (in shares)			1
Issuance of common stock under employee stock purchase plan	23	23	0	23	0	0	0
Tax benefit (deficit) from stock options exercised, restricted stock vesting and employee stock purchase plan	3	3	0	3	0	0	0
Common stock dividends, $0.30 per share during the period ended August 27, 2011 and $0.28 per share during the period ended August 28, 2010, respectively	(118)	(118)	0	0	(118)	0	0
Repurchase of common stock (in shares)			(20)
Repurchase of common stock	(705)	(705)	(2)	(615)	(88)	0	0
Ending balances at Aug. 28, 2010	6,622	6,015	40	0	6,000	(25)	607
Ending balances (in shares) at Aug. 28, 2010			403
Beginning balances at Feb. 26, 2011	7,292	6,602	39	18	6,372	173	690
Beginning balances (in shares) at Feb. 26, 2011			393
Increase (Decrease) in Shareholders' Equity
Net earnings, six months ended	323	313	0	0	313	0	10
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	82	57	0	0	0	57	25
Unrealized gains on available-for-sale investments	(21)	(21)	0	0	0	(21)	0
Cash flow hedging instruments - unrealized gains (losses)	4	2	0	0	0	2	2
Total comprehensive income (loss)	388	351					37
Dividend distribution	(4)	0	0	0	0	0	(4)
Stock-based compensation	63	63	0	63	0	0	0
Stock options exercised (in shares)			1
Stock options exercised	26	26	0	26	0	0	0
Issuance of common stock under employee stock purchase plan (in shares)			1
Issuance of common stock under employee stock purchase plan	23	23	0	23	0	0	0
Tax benefit (deficit) from stock options exercised, restricted stock vesting and employee stock purchase plan	(3)	(3)	0	(3)	0	0	0
Common stock dividends, $0.30 per share during the period ended August 27, 2011 and $0.28 per share during the period ended August 28, 2010, respectively	(112)	(112)	0	0	(112)	0	0
Repurchase of common stock (in shares)			(29)
Repurchase of common stock	(863)	(863)	(2)	(127)	(734)	0	0
Ending balances at Aug. 27, 2011	$ 6,810	$ 6,087	$ 37	$ 0	$ 5,839	$ 211	$ 723
Ending balances (in shares) at Aug. 27, 2011			366