Assets Measured at Fair Value on a Nonrecurring Basis (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Goodwill, impairment charge		$ 848.4	$ 392.3
Impairment of intangible assets	3.3	158.0	90.7
Total, impairment charge	21.5	1,027.1	532.0
Goodwill	1,436.3	1,436.4	2,222.1
Other intangible assets, net book value	297.8	364.8
Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Long-lived assets held and used, impairment charge	4.2	8.0	14.7
Long-lived assets held for sale or disposal, impairment charge	14.8	15.6	34.3
Goodwill, impairment charge		848.4	392.3
Impairment of intangible assets	3.3	158.0	90.7
Total, impairment charge	22.3	1,030.0	532.0
Long-lived assets held and used, net book value	4.0	8.5	61.3
Long-lived assets held for sale or disposal, net book value	18.5	6.3	11.7
Goodwill		18.1
Other intangible assets, net book value		3.1	2.1
Total Assets	22.5	36.0	75.1
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Long-lived assets held and used, fair value measurement	4.2	9.8	68.8
Long-lived assets held for sale or disposal, fair value measurement	20.2	16.4	12.8
Goodwill, impairment charge		18.1
Other intangible assets, fair value measurement		3.1	2.2
Total, fair value measurement	$ 24.4	$ 47.4	$ 83.8