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Statements of Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Accounts receivable less reserve $ 19.1 $ 20.3
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 400,000,000 400,000,000
Common Stock, Shares, Outstanding 322,564,310 319,110,083