Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance at Feb. 27, 2010	$ 3,652,904	$ 3,206	$ 1,020,515	$ 4,754,954	$ (2,126,499)	$ 728
Balance (in shares) at Feb. 27, 2010		320,553			(57,655)
Increase (Decrease) in Shareholders' Equity
Net earnings	791,333			791,333
Other comprehensive (loss) income	4,372					4,372
Shares sold under employee stock option plans, net of taxes	125,096	38	125,058
Shares sold under employee stock option plans, net of taxes (in shares)		3,804
Issuance of restricted shares, net		9	(9)
Issuance of restricted shares, net (in shares)		863
Stock-based compensation expense, net	45,465		45,465
Director fees paid in stock	94		94
Director fees paid in stock (in shares)		2
Repurchase of common stock, including fees	(687,605)				(687,605)
Repurchase of common stock, including fees (in shares)	(15,901)				(15,901)
Balance at Feb. 26, 2011	3,931,659	3,253	1,191,123	5,546,287	(2,814,104)	5,100
Balance (in shares) at Feb. 26, 2011		325,222			(73,556)
Increase (Decrease) in Shareholders' Equity
Net earnings	989,537			989,537
Other comprehensive (loss) income	(6,979)					(6,979)
Shares sold under employee stock option plans, net of taxes	179,592	46	179,546
Shares sold under employee stock option plans, net of taxes (in shares)		4,645
Issuance of restricted shares, net		7	(7)
Issuance of restricted shares, net (in shares)		706
Stock-based compensation expense, net	46,501		46,501
Director fees paid in stock	174		174
Director fees paid in stock (in shares)		3
Repurchase of common stock, including fees	(1,217,956)				(1,217,956)
Repurchase of common stock, including fees (in shares)	(21,505)				(21,505)
Balance at Feb. 25, 2012	3,922,528	3,306	1,417,337	6,535,824	(4,032,060)	(1,879)
Balance (in shares) at Feb. 25, 2012		330,576			(95,061)
Increase (Decrease) in Shareholders' Equity
Net earnings	1,037,788			1,037,788
Other comprehensive (loss) income	(2,441)					(2,441)
Shares sold under employee stock option plans, net of taxes	74,338	15	74,323
Shares sold under employee stock option plans, net of taxes (in shares)		1,489
Issuance of restricted shares, net		6	(6)
Issuance of restricted shares, net (in shares)		626
Stock-based compensation expense, net	48,520		48,520
Director fees paid in stock	277		277
Director fees paid in stock (in shares)		5
Repurchase of common stock, including fees	(1,001,280)				(1,001,280)
Repurchase of common stock, including fees (in shares)	(16,146)				(16,146)
Balance at Mar. 02, 2013	$ 4,079,730	$ 3,327	$ 1,540,451	$ 7,573,612	$ (5,033,340)	$ (4,320)
Balance (in shares) at Mar. 02, 2013		332,696			(111,207)