Restructuring and Relocation Activities - Additional Information (Detail)		1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 23, 2014 USD ($) Jobs	Jan. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($) Employees	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs				$ 71,700,000	$ 75,800,000
FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Jobs relocation period	3 years
Number of Jobs relocated from Elmwood park to Charlotte | Jobs	1,300
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
Restructuring payments including associated costs				$ 33,000,000
Restructuring expected accrual to pay			$ 48,000,000	48,000,000
Restructuring expected accrual remaining to pay			17,000,000	17,000,000
Capital expenditures				19,000,000
Accrual and accrual adjustments				70,700,000
FUSION [Member] | Racine,Wisconsin
Restructuring Cost And Reserve [Line Items]
Property, plant and equipment to assets held for sale						$ 26,000,000
Assets held for sale, sales price		$ 30,000,000
Proceeds from assets held for sale		24,000,000	6,000,000
Unsecured promissory note receivable from disposal of assets held for sale			6,000,000	6,000,000
Pre-tax gain on disposal of assets held for sale		$ 3,000,000
FUSION [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			395,000,000	395,000,000
Expected net cash cost related to restructuring			330,000,000	330,000,000
Capital expenditures related to restructuring and associated activities				190,000,000
FUSION [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			405,000,000	405,000,000
Expected net cash cost related to restructuring			340,000,000	340,000,000
Capital expenditures related to restructuring and associated activities				200,000,000
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs				145,000,000
Restructuring expected accrual to pay			12,000,000	12,000,000
Capital expenditures				$ 6,000,000	15,000,000
Expected completed date of restructuring program				Dec. 31, 2016
Accrual and accrual adjustments				$ (2,400,000)
EQIP [Member] | Reclassification Adjustment
Restructuring Cost And Reserve [Line Items]
Accrual and accrual adjustments				13,000,000
EQIP [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			190,000,000	190,000,000
Capital expenditures related to restructuring and associated activities				$ 40,000,000
Reduction in headcount, employees | Employees				750
EQIP [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			210,000,000	$ 210,000,000
Capital expenditures related to restructuring and associated activities				$ 45,000,000
Reduction in headcount, employees | Employees				900
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs				$ 230,000,000
Restructuring expected accrual to pay			5,000,000	5,000,000
Capital expenditures				1,000,000	$ 1,000,000
Accrual and accrual adjustments				(300,000)
Building Cost Of Charlotte Campus | FUSION [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring	$ 120,000,000
Severance and Termination Benefits [Member] | FUSION [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			115,000,000	115,000,000
Severance and Termination Benefits [Member] | FUSION [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			120,000,000	120,000,000
Severance and Termination Benefits [Member] | EQIP [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			110,000,000	110,000,000
Severance and Termination Benefits [Member] | EQIP [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			120,000,000	120,000,000
Other Restructuring [Member] | FUSION [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			280,000,000	280,000,000
Other Restructuring [Member] | FUSION [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			285,000,000	285,000,000
Facility Relocation and Closures [Member] | EQIP [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			80,000,000	80,000,000
Facility Relocation and Closures [Member] | EQIP [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			$ 90,000,000	$ 90,000,000