Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Goodwill activity:
Balance at beginning of year	$ 2,418.7
Foreign currency translation	(124.6)
Balance at end of year	2,294.1
Intangible Assets Gross, Excluding Goodwill	6,403.9	7,338.8
Canada [Member]
Goodwill [Line Items]
Percentage Of Fair Value Exceeding Carrying Value	14.00%
Goodwill activity:
Balance at beginning of year	718.2
Foreign currency translation	(36.9)
Balance at end of year	681.3
Europe [Member]
Goodwill [Line Items]
Percentage Of Fair Value Exceeding Carrying Value	15.00%
Goodwill activity:
Balance at beginning of year	1,693.2
Foreign currency translation	(87.6)
Balance at end of year	1,605.6
MCI [Member]
Goodwill activity:
Balance at beginning of year	7.3
Foreign currency translation	(0.1)
Balance at end of year	$ 7.2