Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Amortization of transition credit	$ (3,000)	[1],[2]	$ (2,000)	[1],[2]
Amortization of prior service cost	27,000	[1],[2]	163,000	[1],[2]
Amortization of net actuarial loss	9,869,000	[1],[2]	14,156,000	[1],[2]
Defined Benefit Pension Plans | United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	2,023,000		3,494,000		4,438,000	7,293,000
Interest cost	19,416,000		18,534,000		38,832,000	36,905,000
Expected return on plan assets	(25,956,000)		(27,041,000)		(51,912,000)	(54,127,000)
Amortization of transition credit	0		0		0	0
Amortization of prior service cost	2,000		94,000		4,000	223,000
Amortization of net actuarial loss	6,264,000		7,507,000		12,424,000	18,544,000
Settlement	0		(1,416,000)		0	(1,416,000)
Special termination benefits	0		(548,000)		0	(548,000)
Curtailment					0	814,000
Net periodic benefit cost	1,749,000		4,552,000		3,786,000	11,616,000
Defined Benefit Plan Contributions By Employer					14,000,000	7,000,000
Defined Benefit Pension Plans | Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	913,000		2,139,000		1,821,000	4,312,000
Interest cost	7,276,000		11,627,000		14,445,000	23,376,000
Expected return on plan assets	(9,980,000)		(13,886,000)		(19,805,000)	(27,921,000)
Amortization of transition credit	(3,000)		(2,000)		(5,000)	(4,000)
Amortization of prior service cost	(15,000)		28,000		(30,000)	56,000
Amortization of net actuarial loss	2,103,000		4,290,000		4,179,000	8,638,000
Settlement	0		0		0	0
Special termination benefits	0		0		0	0
Curtailment					0	0
Net periodic benefit cost	294,000		4,196,000		605,000	8,457,000
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	697,000		1,014,000		1,425,000	2,031,000
Interest cost	2,480,000		2,510,000		4,942,000	5,024,000
Amortization of prior service cost	40,000		41,000		80,000	82,000
Amortization of net actuarial loss	1,502,000		2,359,000		3,024,000	4,720,000
Net periodic benefit cost	4,719,000		5,924,000		9,471,000	11,857,000
Defined Benefit Plan Contributions By Employer					$ 12,000,000	$ 16,000,000

[1] These items are included in the computation of net periodic costs of defined benefit pension plans and nonpension postretirement benefit plans (see Note 14 for additional details).

[2] Amounts in parentheses indicate debits (reductions) to income.