Restructuring and Relocation Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					0 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012		Jul. 23, 2014 Jobs	Jan. 31, 2015
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs	$ 108.1	$ 107.0	[1]	$ 103.4	[1]
FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Start date when restructuring costs are to be incurred, year	2015
End date when restructuring costs are to be incurred, year	2017
Start date when capital expenditures are to be incurred, year	2015
End date when capital expenditures are to be incurred, year	2016
Jobs relocation period						3 years
Number of Jobs relocated from Elmwood park to Charlotte						1,300
Restructuring payments including associated costs	2.0
Restructuring expected accrual to pay	4
Restructuring expected accrual remaining to pay	2
Capital expenditures	0
FUSION [Member] | Racine,Wisconsin
Restructuring Cost And Reserve [Line Items]
Property, plant and equipment to assets held for sale	26
FUSION [Member] | Subsequent Event [Member] | Racine,Wisconsin
Restructuring Cost And Reserve [Line Items]
Assets held for sale, sales price							30
Proceeds from assets held for sale							24
Unsecured promissory note receivable from disposal of assets held for sale							6
Pre-tax gain on disposal of assets held for sale							3
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs	113.0
Restructuring expected accrual to pay	39
Restructuring expected accrual remaining to pay	3
Capital expenditures	28	11		0
Expected completed date of restructuring program	Dec. 31, 2016
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs	220.0
Restructuring expected accrual to pay	13
Capital expenditures		14		14
Minimum [Member] | FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	275
Expected net cash cost related to restructuring	210
Capital expenditures related to restructuring and associated activities	55
Minimum [Member] | FUSION [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	115
Minimum [Member] | FUSION [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	160
Minimum [Member] | EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	190
Capital expenditures related to restructuring and associated activities	50
Reduction in headcount, employees	750
Minimum [Member] | EQIP [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	105
Minimum [Member] | EQIP [Member] | Facility Relocation and Closures [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	85
Maximum [Member] | FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	285
Expected net cash cost related to restructuring	220
Capital expenditures related to restructuring and associated activities	65
Maximum [Member] | FUSION [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	120
Maximum [Member] | FUSION [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	165
Maximum [Member] | EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	210
Capital expenditures related to restructuring and associated activities	55
Reduction in headcount, employees	900
Maximum [Member] | EQIP [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	120
Maximum [Member] | EQIP [Member] | Facility Relocation and Closures [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	90
Maximum [Member] | IOP [Member]
Restructuring Cost And Reserve [Line Items]
Capital expenditures	$ 1

[1] Certain amounts have been revised to reflect the retrospective application of the Company’s change in inventory costing method for certain U.S. inventories to the FIFO method from the LIFO method. Refer to Note 2, “Summary of Significant Accounting Policies - Inventories,” of the notes to consolidated financial statements for further details surrounding this accounting policy change.