Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue Recognition
Cost in excess of billings	$ 100.8	$ 124.4	$ 100.8	$ 124.4
Billings in excess of cost	38.1	61.1	38.1	61.1
Research and development
Research and development			125.8	93.6	78.2
Goodwill and identifiable intangible assets
Goodwill planning period			6 years
Perpetual growth rate			3.00%
Impairment charges, related to trade names	11.0	60.7	11.0	60.7	0
Goodwill and intangible assets	6,910.3		6,910.3
Goodwill and intangible assets as a percentage of total assets	59.00%		59.00%
Equity and cost method investments
Investments in and loans to equity method investees	12.2	10.3	12.2	10.3
Aggregate balance cost method investments	8.3	6.9	8.3	6.9
Insurance subsidiary
Reserve for policy claims	51.1	42.9	51.1	42.9
Minimum
Basis of presentation
Equity method investment, ownership percentage	20.00%		20.00%
Goodwill and identifiable intangible assets
Discounted cash flows discount rate	11.50%		11.50%
Maximum
Basis of presentation
Equity method investment, ownership percentage	50.00%		50.00%
Goodwill and identifiable intangible assets
Discounted cash flows discount rate	12.50%		12.50%
Income taxes
Percentage of recognized income tax positions that could be realized at the largest amount	50.00%		50.00%
Other Current Liabilities
Insurance subsidiary
Reserve for policy claims	13.2	13.3	13.2	13.3
Other Noncurrent Liabilities
Insurance subsidiary
Reserve for policy claims	37.9	29.6	37.9	29.6
Credit Concentration Risk
Trade receivables and concentration of credit risk
Customer receivable balances to total trade receivables			10.00%	10.00%
Number of customers	0	0	0	0
Process Technologies
Goodwill and identifiable intangible assets
Pre-tax non-cash Impairment charge on goodwill					200.5
Impairment charges, related to trade names				$ 23.2