Stock-Based Compensation (Details 4) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	9 Months Ended
	Aug. 31, 2012		Sep. 02, 2011		Dec. 02, 2011	Dec. 03, 2010
Performance shares & restricted stock units outstanding
Share Price	$ 31.27		$ 24.15
Performance Shares [Member] | Prior Year [Member]
Performance shares & restricted stock units outstanding
Number of shares outstanding	431		427		405	557
Outstanding weighted average remaining contractual life (in years)	9 months 15 days		7 months 28 days
Outstanding aggregate intrinsic value	$ 13.5	[1]	$ 10.3	[1]
Number of shares vested and expected to vest	401		402
Vested and expected to vest weighted average remaining contractual life (in years)	9 months 4 days		7 months 21 days
Vested and expected to vest aggregate intrinsic value	12.5	[1]	9.5	[1]
Restricted Stock Unit [Member]
Performance shares & restricted stock units outstanding
Number of shares outstanding	18,877		17,353		16,871	13,890
Outstanding weighted average remaining contractual life (in years)	1 year 6 months 18 days		1 year 6 months 11 days
Outstanding aggregate intrinsic value	590.3	[1]	419.1	[1]
Number of shares vested and expected to vest	16,403		15,107
Vested and expected to vest weighted average remaining contractual life (in years)	1 year 5 months 12 days		1 year 5 months 1 day
Vested and expected to vest aggregate intrinsic value	$ 512.1	[1]	$ 364.4	[1]

[1] The intrinsic value is calculated as the market value as of the end of the fiscal period. As reported by the NASDAQ Global Select Market, the market values as of August 31, 2012 and September 2, 2011 were $31.27 and $24.15, respectively.