Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Goodwill activity:
Balance at beginning of year	$ 2,191.6us-gaap_Goodwill
Foreign currency translation	(170.5)
Balance at end of year	2,021.1us-gaap_Goodwill
Intangible Assets Gross, Excluding Goodwill	5,567.1	6,115.4
Canada [Member]
Goodwill [Line Items]
Percentage Of Fair Value Exceeding Carrying Value	11.00%
Goodwill activity:
Balance at beginning of year	656.5
Foreign currency translation	(55.1)
Balance at end of year	601.4
Europe [Member]
Goodwill [Line Items]
Percentage Of Fair Value Exceeding Carrying Value	14.00%
Goodwill activity:
Balance at beginning of year	1,528.0
Foreign currency translation	(115.4)
Balance at end of year	1,412.6
MCI [Member]
Goodwill activity:
Balance at beginning of year	7.1
Foreign currency translation	0
Balance at end of year	$ 7.1

Percentage Of Fair Value Exceeding Carrying Value

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting 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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

+ Details

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