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Balance Sheet (Parenthetical) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current Assets
Reserves	$ 6.7	$ 5.3
Common Shareholders' Equity
Common Stock No Par Value
Common stock Shares, Issued (in shares)	81.9	81.7
Common stock, Shares Outstanding (in shares)	81.9	81.7

Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any.

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