Goodwill and Other Intangible Assets Schedule of Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 1,877.2us-gaap_Goodwill	$ 1,872.3us-gaap_Goodwill	$ 1,860.4us-gaap_Goodwill
Currency translation adjustments	(5.1)us-gaap_GoodwillTranslationAdjustments	4.9us-gaap_GoodwillTranslationAdjustments
Dispositions	(6.4)
Goodwill, Ending Balance	1,865.7us-gaap_Goodwill	1,877.2us-gaap_Goodwill	1,860.4us-gaap_Goodwill
UNITED STATES
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,758.0	1,758.0
Currency translation adjustments	0	0
Dispositions	(6.4)
Goodwill, Ending Balance	1,751.6	1,758.0
International
Goodwill [Roll Forward]
Goodwill, Beginning Balance	119.2	114.3
Currency translation adjustments	(5.1)	4.9
Dispositions	0
Goodwill, Ending Balance	$ 114.1	$ 119.2

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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