Pensions and Other Benefit Programs (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014
United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 38		$ 1,241		$ 114	$ 5,679
Interest cost	18,581		19,415		55,745	58,247
Expected return on plan assets	(26,002)		(25,956)		(78,004)	(77,868)
Amortization of transition credit	0		0		0	0
Amortization of prior service cost (credit)	2		2		6	6
Amortization of net actuarial loss	7,327		6,470		21,982	18,894
Settlement / curtailment	1,083	[1]	0	[1]	1,083	3,371
Net periodic benefit (income) cost	1,029		1,172		926	8,329
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	557		898		1,677	2,719
Interest cost	6,099		7,219		18,284	21,664
Expected return on plan assets	(8,912)		(9,914)		(26,686)	(29,719)
Amortization of transition credit	(2)		(3)		(7)	(8)
Amortization of prior service cost (credit)	(16)		(15)		(49)	(45)
Amortization of net actuarial loss	1,482		2,093		4,471	6,272
Settlement / curtailment	0	[1]	0	[1]	0	0
Net periodic benefit (income) cost	(792)		278		(2,310)	883
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	530		632		1,849	2,057
Interest cost	2,086		2,509		6,612	7,451
Expected return on plan assets	0		0		0	0
Amortization of transition credit	0		0		0	0
Amortization of prior service cost (credit)	74		40		222	120
Amortization of net actuarial loss	1,704		1,462		5,657	4,486
Settlement / curtailment	0	[1]	0	[1]	0	0
Net periodic benefit (income) cost	$ 4,394		$ 4,643		$ 14,340	$ 14,114

[1] Included in restructuring charges and asset impairments, net in the Condensed Consolidated Statements of Income.