Pensions and Other Benefit Programs (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 38		$ 2,415
Interest cost	18,859		19,416
Expected return on plan assets	(26,044)		(25,956)
Amortization of transition credit	0		0
Amortization of prior service cost (credit)	2		2
Amortization of net actuarial loss	7,648		6,160
Settlement / curtailment	0	[1]	2,550	[1]
Net periodic benefit cost (income)	503		4,587
Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	565		908
Interest cost	6,063		7,169
Expected return on plan assets	(8,839)		(9,825)
Amortization of transition credit	(2)		(2)
Amortization of prior service cost (credit)	(17)		(15)
Amortization of net actuarial loss	1,480		2,076
Settlement / curtailment	0	[1]	0	[1]
Net periodic benefit cost (income)	(750)		311
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	679		728
Interest cost	2,375		2,462
Expected return on plan assets	0		0
Amortization of transition credit	0		0
Amortization of prior service cost (credit)	74		40
Amortization of net actuarial loss	2,391		1,522
Settlement / curtailment	0	[1]	0	[1]
Net periodic benefit cost (income)	$ 5,519		$ 4,752

[1] Included in Restructuring charges, net in the Condensed Consolidated Statements of Income.