Goodwill and Other Intangible Assets - Changes in Goodwill and Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived Intangible Assets, Period Increase (Decrease)	$ 0
Goodwill and Other Intangible Assets [Roll Forward]
Amortizing Intangible Assets, Beginning Balance	730.0
Amortizing Intangible Assets, Additions	49.9
Amortizing Intangible Assets, Impairments	(1.6)
Amortizing Intangible Assets, Amortization expense	(33.0)	(41.4)
disposal of intangible asset	0
Amortizing Intangible Assets, Other	(7.8)
Amortizing Intangible Assets, Ending Balance	737.5
Goodwill	3,063.3
Goodwill, Acquired During Period	13.8
Goodwill, Period Increase (Decrease)	0
Goodwill, Other	0.3
Goodwill	3,077.4
Other Non-Amortizing Intangible Assets, Beginning Balance	2,757.7
Other Non-Amortizing Intangible Assets, Impairments	(29.3)
Other Non-Amortizing Intangible Assets, Other	(3.9)
Other Non-Amortizing Intangible Assets, Ending Balance	$ 2,724.5