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Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.

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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) shares in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Sep. 28, 2012 shares	Dec. 31, 2016 USD ($) Person	Dec. 31, 2015 USD ($) Person	Dec. 31, 2014 USD ($)
Significant Accounting Policies [Line Items]
Unamortized Debt Issuance Expense		$ 17.8	$ 23.5
Impairment of Long-Lived Assets Held-for-use		0.0	5.1	$ 13.0
Revenue Recognition
Cost in excess of billings		107.7	114.4
Billings in excess of cost		22.5	32.0
Research and development
Research and development		$ 114.1	98.7	96.4
Goodwill and identifiable intangible assets
Goodwill planning period		6 years
Perpetual growth rate		3.00%
Discounted cash flows discount rate		9.00%
Impairment charges, related to trade names		$ 13.3	0.0	$ 0.0
Insurance subsidiary
Reserve for policy claims		$ 63.0	62.2
Minimum
Basis of presentation
Equity method investment, ownership percentage		20.00%
Maximum
Basis of presentation
Equity method investment, ownership percentage		50.00%
Other Current Liabilities
Insurance subsidiary
Reserve for policy claims		$ 13.2	13.2
Other Noncurrent Liabilities
Insurance subsidiary
Reserve for policy claims		$ 49.8	$ 49.0
Credit Concentration Risk
Trade receivables and concentration of credit risk
Customer receivable balances to total trade receivables		10.00%	10.00%
Number of customers \| Person		0	0
Valves And Controls [Member]
Goodwill and identifiable intangible assets
Goodwill, Impairment Loss			$ 515.2
Impairment charges, related to trade names			$ 39.5
Tyco Flow Control International, Ltd
Significant Accounting Policies [Line Items]
Percentage Of Ownership Interests	100.00%
Stock Issued During Period, Shares, Acquisitions \| shares	110.9