The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill And Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014	Jan. 03, 2015	Jan. 30, 2015
Business Acquisition [Line Items]
Goodwill	$ 1,561.1us-gaap_Goodwill		$ 1,004.0us-gaap_Goodwill
Goodwill acquired	561.8us-gaap_GoodwillAcquiredDuringPeriod
Amortization of intangible assets	14.3us-gaap_AmortizationOfIntangibleAssets	11.3us-gaap_AmortizationOfIntangibleAssets
Estimated amortization expense in 2015	65.6
Power Transmission Solutions
Business Acquisition [Line Items]
Goodwill				$ 561.8