Consolidated Balance Sheet (Parenthetical) (USD $) In Millions, unless otherwise specified	Nov. 30, 2014	Nov. 30, 2013
Trade accounts receivable, allowances	$ 4.0	$ 4.1
Common Stock [Member]
Common stock, par value (usd per share)
Common stock, shares authorized	320.0	320.0
Common stock, shares issued	12.0	12.1
Common stock, shares outstanding	12.0	12.1
Common Stock Non-Voting [Member]
Common stock, par value (usd per share)
Common stock, shares authorized	320.0	320.0
Common stock, shares issued	116.4	119.0
Common stock, shares outstanding	116.4	119.0

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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