Restructuring Activities (Details 1) (USD $) In Millions	12 Months Ended
	May 29, 2011
Severance and related costs [Member] | 2010 Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	$ 14.2
Costs incurred and charged to expense	2.8
Costs paid or otherwise settled	(11.1)
Changes in estimates	(0.7)
Balance at May 29, 2011	5.2
Severance and related costs [Member] | Network Optimization Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	0
Costs incurred and charged to expense	5.3
Costs paid or otherwise settled	(0.5)
Balance at May 29, 2011	4.8
Plan implementation costs [Member] | 2010 Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	1.0
Costs incurred and charged to expense	5.3
Costs paid or otherwise settled	(5.4)
Changes in estimates	(0.1)
Balance at May 29, 2011	1.0
Plan implementation costs [Member] | Network Optimization Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	0
Costs incurred and charged to expense	0.8
Costs paid or otherwise settled	(0.8)
Other Costs [Member] | 2010 Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	3.5
Costs incurred and charged to expense	0.1
Costs paid or otherwise settled	(0.9)
Balance at May 29, 2011	2.7
2010 Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	18.7
Costs incurred and charged to expense	8.2
Costs paid or otherwise settled	(17.4)
Changes in estimates	(0.6)
Balance at May 29, 2011	8.9
Network Optimization Plan [Member]
Liabilities for various initiatives and changes
Balance at May 30, 2010	0
Costs incurred and charged to expense	6.1
Costs paid or otherwise settled	(1.3)
Balance at May 29, 2011	$ 4.8