Other Comprehensive Income or Loss (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (271.1)	$ (73.8)	$ (61.5)
Other comprehensive income (loss) before reclassifications	(302.9)	199.9	(126.8)
Amounts reclassified from accumulated other comprehensive income	52.3	105.0	110.0
Tax benefit (expense)	97.8us-gaap_OtherComprehensiveIncomeLossTax	(125.2)us-gaap_OtherComprehensiveIncomeLossTax	4.5us-gaap_OtherComprehensiveIncomeLossTax
Total other comprehensive (loss) income	(152.8)	179.7	(12.3)
Distribution of Blackhawk	2.2
Sale of CSL		(377.0)
Ending balance	(421.7)	(271.1)	(73.8)
Pension and Post-Retirement Benefit Plan Items
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(130.7)	(472.3)	(462.1)
Other comprehensive income (loss) before reclassifications	(303.5)	266.6	(125.2)
Amounts reclassified from accumulated other comprehensive income	52.3	105.0	110.0
Tax benefit (expense)	98.0	(125.8)	5.0
Total other comprehensive (loss) income	(153.2)	245.8	(10.2)
Distribution of Blackhawk	0
Sale of CSL		95.8
Ending balance	(283.9)	(130.7)	(472.3)
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(138.8)	399.0	402.1
Other comprehensive income (loss) before reclassifications	0.2	(65.0)	(3.1)
Amounts reclassified from accumulated other comprehensive income	0	0	0
Tax benefit (expense)	0	0	0
Total other comprehensive (loss) income	0.2	(65.0)	(3.1)
Distribution of Blackhawk	2.2
Sale of CSL		(472.8)
Ending balance	(136.4)	(138.8)	399.0
Other
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(1.6)	(0.5)	(1.5)
Other comprehensive income (loss) before reclassifications	0.4	(1.7)	1.5
Amounts reclassified from accumulated other comprehensive income		0	0
Tax benefit (expense)	(0.2)	0.6	(0.5)
Total other comprehensive (loss) income	0.2	(1.1)	1.0
Distribution of Blackhawk	0
Sale of CSL		0
Ending balance	$ (1.4)	$ (1.6)	$ (0.5)

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Divestiture of Business, Equity Adjustment for Sale of Subsidiary

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Other Comprehensive Income (Loss), Distributions, Net of Tax

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount before tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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