Restructuring and Relocation Activities - Additional Information (Detail)		1 Months Ended	6 Months Ended
	Jul. 23, 2014 Jobs	Jan. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) Employees	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs			$ 45,200,000	$ 49,900,000
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
Accrual and accrual adjustments			$ 35,200,000
Restructuring payments including associated costs			17,000,000
Restructuring expected accrual to pay			33,000,000
Restructuring expected accrual remaining to pay			3,000,000
FUSION [Member] | Reclassification Adjustment [Member]
Restructuring Cost And Reserve [Line Items]
Accrual and accrual adjustments			13,000,000
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
Unsecured promissory note receivable from disposal of assets held for sale		6,000,000
Pre-tax gain on disposal of assets held for sale		$ 3,000,000
FUSION [Member] | Building Cost Of Charlotte Campus
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			120,000,000
FUSION [Member] | Minimum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			395,000,000		275,000,000
Expected net cash cost related to restructuring			330,000,000
Capital expenditures related to restructuring and associated activities			175,000,000
FUSION [Member] | Minimum [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			115,000,000
FUSION [Member] | Minimum [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			280,000,000
FUSION [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			405,000,000		$ 285,000,000
Expected net cash cost related to restructuring			340,000,000
Capital expenditures related to restructuring and associated activities			185,000,000
Capital expenditures			1,000,000
FUSION [Member] | Maximum [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			120,000,000
FUSION [Member] | Maximum [Member] | Other Restructuring [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			285,000,000
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Accrual and accrual adjustments			(5,600,000)
Restructuring payments including associated costs			139,000,000
Restructuring expected accrual to pay			16,000,000
Capital expenditures			$ 3,000,000	10,000,000
Expected completed date of restructuring program			Dec. 31, 2016
EQIP [Member] | Reclassification Adjustment [Member]
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
Capital expenditures related to restructuring and associated activities			$ 45,000,000
Reduction in headcount, employees | Employees			750
EQIP [Member] | Minimum [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			$ 110,000,000
EQIP [Member] | Minimum [Member] | Facility Relocation and Closures [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			80,000,000
EQIP [Member] | Maximum [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			210,000,000
Capital expenditures related to restructuring and associated activities			$ 50,000,000
Reduction in headcount, employees | Employees			900
EQIP [Member] | Maximum [Member] | Severance and Termination Benefits [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			$ 120,000,000
EQIP [Member] | Maximum [Member] | Facility Relocation and Closures [Member]
Restructuring Cost And Reserve [Line Items]
Expected associated cost related to restructuring			90,000,000
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring payments including associated costs			228,000,000
Restructuring expected accrual to pay			7,000,000
Capital expenditures			$ 1,000,000	$ 1,000,000