Supplemental Guarantor Information Revision To Consolidating Financials (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Net Income (loss) from continuing operations	$ 286.3	$ 203.8	$ 821.5	$ 543.5
Subsidiary Guarantors [Member]
Equity income (loss) in subsidiaries	(78.7)	7.9	(294.8)	(123.4)	$ (347.6)
Net Income (loss) from continuing operations	383.7	288.7	1,156.5	722.8	2,249.6
Consolidation, Eliminations [Member]
Equity income (loss) in subsidiaries	(375.7)	(392.8)	(1,012.7)	(943.0)	(1,775.1)
Net Income (loss) from continuing operations	$ (375.7)	$ (392.8)	$ (1,012.7)	$ (943.0)	$ (1,775.1)