Financial Information for Subsidiary and Guarantor Parent Financial Information for Subsidiary and Guarantor Parent (Changes) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Payments of Ordinary Dividends, Noncontrolling Interest	$ 0	$ 18.0
Current assets	2,415.0		2,950.8
Assets	6,503.2		6,898.5
Current liabilities	839.6		1,211.0
Liabilities	3,511.5		3,903.8
Stockholders' equity	2,979.6	2,564.1	2,994.7	2,587.1
Cash flows provided by (used in) operating activities	(38.2)	227.4
Net Cash Provided by (Used in) Investing Activities	(248.1)	(394.7)
Cash provided by (used in) financing activities	(476.3)	398.4
NonGuarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Current assets	4,274.2		4,015.2
Assets	6,877.2		6,582.7
Current liabilities	396.4		382.7
Liabilities	738.9		761.5
Stockholders' equity	6,126.2		5,821.2
Cash flows provided by (used in) operating activities	285.0	366.0
Net Cash Provided by (Used in) Investing Activities	(1,037.8)	(67.0)
Cash provided by (used in) financing activities	(16.8)	(59.2)
Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Current assets	616.9		494.9
Assets	2,312.2		2,074.2
Current liabilities	1,445.1		1,131.0
Liabilities	1,995.9		1,686.9
Stockholders' equity	316.3		387.3
Cash flows provided by (used in) operating activities	(263.2)	(87.2)
Net Cash Provided by (Used in) Investing Activities	(115.6)	(359.0)
Cash provided by (used in) financing activities	383.4	440.4
Parent Company
Condensed Financial Statements, Captions [Line Items]
Current assets	58.2		30.1
Assets	6,490.6		6,239.5
Current liabilities	1,532.4		1,286.7
Liabilities	3,511.0		3,244.8
Stockholders' equity	2,979.6		2,994.7
Cash flows provided by (used in) operating activities	(60.0)	(27.1)
Net Cash Provided by (Used in) Investing Activities	(0.1)	(0.1)
Cash provided by (used in) financing activities	62.5	24.3
Consolidation Eliminations
Condensed Financial Statements, Captions [Line Items]
Current assets	(2,534.3)		(1,589.4)
Assets	(9,176.8)		(7,997.9)
Current liabilities	(2,534.3)		(1,589.4)
Liabilities	(2,734.3)		(1,789.4)
Stockholders' equity	(6,442.5)		(6,208.5)
Cash flows provided by (used in) operating activities	0	(24.3)
Net Cash Provided by (Used in) Investing Activities	905.4	31.4
Cash provided by (used in) financing activities	$ (905.4)	$ (7.1)

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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