Other Financial Information (Schedule Of Percentage Distribution Of Inventories) (Details)	6 Months Ended	12 Months Ended
Jul. 02, 2011	Jan. 01, 2011
Other Financial Information
Percentage of inventories determined using the last-in, first-out (LIFO) inventory valuation method	55.00%
Raw Material and Work in Process	34.00%	36.00%
Finished Goods and Purchased Parts	66.00%	64.00%

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rbc_FinishedGoodsAndPurchasedPartsPercentageInInventories

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na

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