Accumulated Other Comprehensive Income (Loss) AOCI Reclassifications (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 29, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency forwards, Other income (expense), net									$ (6.5)		$ 18.9		$ (90.3)
Cost of goods sold	620.2	666.6	683.3	523.2	644.4	670.0	684.1	547.1	2,493.3		2,545.6		2,352.5
Net actuarial gain (loss)									(35.4)		(56.5)
Total income (loss) reclassified, before tax									517.3		570.5		437.6
Income tax benefit (expense)									(69.0)		(84.0)		(154.5)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income (loss) reclassified, net of tax									(28.5)		(43.2)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total income (loss) reclassified, before tax									(3.8)		5.5
Income tax benefit (expense)									1.5		(2.3)		1.6
Net income (loss) reclassified, net of tax									(2.3)		3.2
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Foreign currency forwards | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency forwards, Other income (expense), net									(5.5)		2.2
Cost of goods sold									2.8		5.2
Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service benefit (cost)									2.4	[1]	2.8	[2]
Net actuarial gain (loss)									(35.4)	[1]	(56.5)	[2]
Total income (loss) reclassified, before tax									(33.0)		(53.7)
Income tax benefit (expense)									6.8		7.3		5.4
Net income (loss) reclassified, net of tax									(26.2)		(46.4)
Commodity swaps | Cost of goods sold | Cash Flow Hedges | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Commodity swaps | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold									0.4		(0.3)
Forward starting interest rate swaps | Interest expense, net | Cash Flow Hedges | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Forward starting interest rate swaps | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Forward starting interest rate swaps, Interest expense, net									$ (1.5)		$ (1.6)

[1] These components of AOCI are included in the computation of net periodic pension and other postretirement benefit cost. See Note 16, "Employee Retirement Plans and Postretirement Benefits" for additional details.

[2] The tax benefit (expense) recognized on reclassification of derivative gains and losses to income was $1.5 million, $(2.3) million and $1.6 million for 2014, 2013 and 2012, respectively. The tax benefit recognized on reclassification of net prior service costs and net actuarial gains and losses to income was $6.8 million, $7.3 million and $5.4 million for 2014, 2013 and 2012, respectively.