Components of Identifiable Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2011 Year	Dec. 31, 2010
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount, Amortizable	$ 445.8	$ 365.0
Accumulated Amortization	161.2	145.3
Intangible Assets, Gross (Excluding Goodwill)	551.7	444.7
Total Accumulated Amortization	161.2	145.3
Customer Lists
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life	18
Gross Carrying Amount, Amortizable	253.7	189.5
Accumulated Amortization	76.4	68.1
Technology
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life	15
Gross Carrying Amount, Amortizable	148.8	133.8
Accumulated Amortization	63.6	58.2
Trademarks
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life	16
Gross Carrying Amount, Amortizable	31.0	29.7
Accumulated Amortization	13.0	11.6
Gross Carrying Amount, Non-Amortizable	105.9	79.7
Patents
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life	11
Gross Carrying Amount, Amortizable	11.1	10.8
Accumulated Amortization	7.6	6.9
Other
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life	8
Gross Carrying Amount, Amortizable	1.2	1.2
Accumulated Amortization	$ 0.6	$ 0.5