Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Allowance for trade accounts receivables	$ 11.5	$ 10.7
Class A Common Stock
Capital stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares issued (in shares)	36.6	36.6
Treasury stock, common stock (in shares)	2.4	2.4
Class B Common Stock
Capital stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares issued (in shares)	3.5	3.5

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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