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CONDENSED CONSOLIDATED BALANCE SHEET [PARENTHETICAL] In Millions, unless otherwise specified	Mar. 31, 2012	Sep. 30, 2011
Balance Sheet Paranthetical [Abstract]
Common stock, shares issued	96.4	94.6
Common stock, shares outstanding	96.4	94.6

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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