Accumulated Other Comprehensive Income (Loss) (Changes in OCI) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2013		Dec. 28, 2012		Dec. 30, 2011
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 28, 2012	$ (24.9)	[1]
Other comprehensive income (loss) before reclassifications	21.4	[1]
Amounts reclassified from accumulated other comprehensive income (loss)	0.1	[1]
Net current period other comprehensive income (loss)	21.5	[1]
Balance at December 27, 2013	(3.4)	[1]	(24.9)	[1]
Net unrealized foreign currency translation gain (loss)	(0.3)		9.1		(2.5)
Net foreign currency translation adjustment	(0.3)		9.1		(2.5)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 28, 2012	(13.4)	[1]
Other comprehensive income (loss) before reclassifications	9.9	[1]
Amounts reclassified from accumulated other comprehensive income (loss)	0.4	[1]
Net current period other comprehensive income (loss)	10.3	[1]
Balance at December 27, 2013	(3.1)	[1]
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 28, 2012	10.6	[1]
Other comprehensive income (loss) before reclassifications	1.4	[1],[2]
Amounts reclassified from accumulated other comprehensive income (loss)	0	[1]
Net current period other comprehensive income (loss)	1.4	[1]
Balance at December 27, 2013	12.0	[1]
Net unrealized foreign currency translation gain (loss)	(4.1)
Net foreign currency translation adjustment	(1.7)
Accumulated Defined Benefit Plans Adjustment [Member]
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 28, 2012	(24.8)	[1]
Other comprehensive income (loss) before reclassifications	10.5	[1]
Amounts reclassified from accumulated other comprehensive income (loss)	2.0	[1]
Net current period other comprehensive income (loss)	12.5	[1]
Balance at December 27, 2013	(12.3)	[1]
Changes in Fair Value of Available for Sale Securities [Member]
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 28, 2012	2.7	[1]
Other comprehensive income (loss) before reclassifications	(0.4)	[1]
Amounts reclassified from accumulated other comprehensive income (loss)	(2.3)	[1]
Net current period other comprehensive income (loss)	(2.7)	[1]
Balance at December 27, 2013	$ 0	[1]

[1] (1) All amounts are net of tax and noncontrolling interests.

[2] (2) Includes loss of $(4.1) million on intra-entity foreign currency transactions that are of a long-term-investment nature, also includes $(1.7) million of noncontrolling interests.