The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

+ References+ Details

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

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+ Details

Accounting Policies Goodwill Impairment (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 29, 2014	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Other Asset Impairment Charges	$ 6.3	$ 12.3	$ 0
Asset impairments and other, net		81.0	0	0
Goodwill, Impairment Loss		76.3
Impairment of Intangible Assets, Finite-lived		17.0
Electrical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Other Asset Impairment Charges		12.3
Asset impairments and other, net		68.9
Goodwill, Impairment Loss		64.2
Mechanical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Other Asset Impairment Charges		0
Asset impairments and other, net		12.1
Goodwill, Impairment Loss		12.1
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		16.2
Technology [Member] \| Electrical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		16.2
Technology [Member] \| Mechanical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		0
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		0.8
Customer Relationships [Member] \| Electrical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		0.8
Customer Relationships [Member] \| Mechanical Segment [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 0