Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Common Stock, par value (in dollars per share) $ 0.01 $ 0.01
Common Stock, shares authorized (in shares) 750,000,000 750,000,000
Common Stock, shares issued (in shares) 545,951,707 433,421,677
Treasury stock, shares (in shares) 1,120,367 1,245,367
Total assets in variable interest entity   $ 7.6
Total liability in variable interest entity   $ 12.1