Accumulated Other Comprehensive Income - Changes in AOCI (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
Accumulated other comprehensive income (loss):
Balance - beginning of period	$ 499.0	$ 388.0
Other comprehensive income (loss) before reclassifications	(11.5)	(267.4)
Reclassification adjustments to earnings	7.6	9.5
Net other comprehensive income (loss)	(3.9)	(257.9)
Balance - end of period	502.9	645.9
Currency translation adjustment and other
Accumulated other comprehensive income (loss):
Balance - beginning of period	70.5	(29.4)
Other comprehensive income (loss) before reclassifications	15.2	(312.5)
Reclassification adjustments to earnings	0	0
Net other comprehensive income (loss)	15.2	(312.5)
Balance - end of period	55.3	283.1
Unrealized (losses) gains on cash flow hedges, net of tax
Accumulated other comprehensive income (loss):
Balance - beginning of period	77.3	93.5
Other comprehensive income (loss) before reclassifications	(1.8)	5.3
Reclassification adjustments to earnings	4.5	6.6
Net other comprehensive income (loss)	2.7	11.9
Balance - end of period	74.6	81.6
Unrealized (losses) gains on net investment hedges, net of tax
Accumulated other comprehensive income (loss):
Balance - beginning of period	(76.8)	(63.3)
Other comprehensive income (loss) before reclassifications	(22.3)	33.2
Reclassification adjustments to earnings	0	0
Net other comprehensive income (loss)	(22.3)	33.2
Balance - end of period	(99.1)	(30.1)
Pension (losses) gains, net of tax
Accumulated other comprehensive income (loss):
Balance - beginning of period	(274.4)	(260.6)
Other comprehensive income (loss) before reclassifications	(2.6)	6.6
Reclassification adjustments to earnings	3.1	2.9
Net other comprehensive income (loss)	0.5	9.5
Balance - end of period	$ (273.9)	$ (251.1)