Fair Value Measurements (Fair Values Of Non-Financial Assets Measured At Fair Value On Non-Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				12 Months Ended																12 Months Ended
	Nov. 27, 2011	Nov. 28, 2010	Nov. 27, 2011 Segment, Continuing Operations [Member]	Nov. 27, 2011 Segment, Discontinued Operations [Member]	May 29, 2011 Fair Value, Measurements, Nonrecurring [Member]		Nov. 27, 2011 Fair Value, Measurements, Nonrecurring [Member]		Nov. 27, 2011 Fair Value, Measurements, Nonrecurring [Member] Quoted Prices In Active Market For Identical Assets (Liabilities) (Level 1) [Member]		May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Quoted Prices In Active Market For Identical Assets (Liabilities) (Level 1) [Member]		Nov. 27, 2011 Fair Value, Measurements, Nonrecurring [Member] Significant Other Observable Inputs (Level 2) [Member]		May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Significant Other Observable Inputs (Level 2) [Member]		Nov. 27, 2011 Fair Value, Measurements, Nonrecurring [Member] Significant Unobservable Inputs (Level 3) [Member]		May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Significant Unobservable Inputs (Level 3) [Member]		May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Segment, Continuing Operations [Member]	May 29, 2011 Fair Value, Measurements, Nonrecurring [Member] Segment, Discontinued Operations [Member]
Long-lived assets held for disposal					$ 4.4	[1]	$ 1.2	[2]	$ 0	[2]	$ 0	[1]	$ 0	[2]	$ 0	[1]	$ 1.2	[2]	$ 4.4	[1]
Long-lived assets held and used					0.7	[3]	0	[4]	0	[4]	0	[3]	0	[4]	0	[3]	0	[4]	0.7	[3]
Total					5.1		1.2		0		0		0		0		1.2		5.1
Adjustments to fair value of non financial instrument measured on a non-recurring basis	0.3	2.9
Carrying value of long-lived assets held for disposal					7.0		1.4
Assets Held-for-sale, Long Lived, Fair Value Disclosure	1.2
Impairment of long-lived assets to be disposed of			0.3	0.2	2.6																1.9	0.7
Carrying value of long-lived assets held and used					2.8		0.3
Property, Plant, and Equipment, Fair Value Disclosure	0
Impairment of Long-Lived Assets Held-for-use																					$ 2.1

[1] 1)In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2011, long-lived assets held for disposal with a carrying amount of $7.0 million were written down to their fair value of $4.4 million, based on a review of comparable assets, resulting in an impairment charge of $2.6 million, of which $1.9 million was included in earnings from continuing operations and $0.7 million was included in losses from discontinued operation

[2] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2012, long-lived assets held for disposal with a carrying amount of $1.4 million were written down to their fair value of $1.2 million, based on a review of comparable assets, resulting in an impairment charge of $0.2 million, which was included in losses from discontinued operations.

[3] 2)In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2011, long-lived assets held and used with a carrying amount of $2.8 million were written down to their fair value of $0.7 million, based on a review of comparable assets, resulting in an impairment charge of $2.1 million, which was included in earnings from continuing operation

[4] In accordance with the provisions of ASC Topic 360, Property, Plant and Equipment, during fiscal 2012, long-lived assets held and used with a carrying amount of $0.3 million were written down to their fair value of $0.0 million, due to fire loss, resulting in an impairment charge of $0.3 million, which was included in earnings from continuing operations.