Accumulated Other Comprehensive Loss (Changes In Accumulated Other Comprehensive Loss By Component, Net Of Tax) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jan. 03, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			$ 1,934.4
Ending balance	1,945.5		1,934.4
Hedging Activities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(31.0)	(9.5)
Other comprehensive income (loss) before reclassifications	(6.3)	(13.8)
Amounts reclassified from accumulated other comprehensive income (loss)	6.0	3.9
Tax (expense) benefit	0.1	3.8
Net current period other comprehensive income (loss)	(0.2)	(6.1)
Ending balance	(31.2)	(15.6)
Pension Benefit Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(39.5)	(23.3)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	1.2	0.5
Tax (expense) benefit	(0.4)	(0.2)
Net current period other comprehensive income (loss)	0.8	0.3
Ending balance	(38.7)	(23.0)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(80.5)	(27.0)
Other comprehensive income (loss) before reclassifications	(21.7)	(4.2)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Tax (expense) benefit	0	0
Net current period other comprehensive income (loss)	(21.7)	(4.2)
Ending balance	(102.2)	(31.2)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(151.0)	(59.8)
Other comprehensive income (loss) before reclassifications	(28.0)	(18.0)
Amounts reclassified from accumulated other comprehensive income (loss)	7.2	4.4
Tax (expense) benefit	(0.3)	3.6
Net current period other comprehensive income (loss)	(21.1)	(10.0)
Ending balance	$ (172.1)	$ (69.8)