Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Document Fiscal Year Focus			2013
Document Period End Date			Jun. 30, 2013
Amortization of transition credit	$ (2,000)	$ (2,000)	$ (4,000)	$ (4,000)
Amortization of prior service cost	163,000	(299,000)	361,000	(589,000)
Recognized net actuarial loss	(14,156,000)	(18,347,000)	(31,902,000)	(37,524,000)
Defined Benefit Plan Special Contributions			0	(95,000,000)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Contributions By Employer			7,000,000
Pension Plans, Defined Benefit [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Special Termination Benefits	(548,000)	0	(548,000)	0
Service cost	3,494,000	4,515,000	7,293,000	9,469,000
Interest cost	18,534,000	19,917,000	36,905,000	40,520,000
Expected return on plan assets	(27,041,000)	(30,194,000)	(54,127,000)	(60,812,000)
Amortization of transition credit	0	0	0	0
Amortization of prior service cost	94,000	197,000	223,000	402,000
Recognized net actuarial loss	7,507,000	13,165,000	18,544,000	26,479,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	1,416,000	0	1,416,000	0
Curtailment			814,000	0
Net periodic benefit cost	4,552,000	7,600,000	11,616,000	16,058,000
Defined Benefit Plan Contributions By Employer			7,000,000
Pension Plans, Defined Benefit [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Special Termination Benefits	0	0	0	0
Service cost	2,139,000	2,013,000	4,312,000	4,031,000
Interest cost	11,627,000	6,934,000	23,376,000	13,857,000
Expected return on plan assets	(13,886,000)	(8,041,000)	(27,921,000)	(16,064,000)
Amortization of transition credit	(2,000)	(2,000)	(4,000)	(4,000)
Amortization of prior service cost	28,000	27,000	56,000	55,000
Recognized net actuarial loss	4,290,000	3,492,000	8,638,000	6,988,000
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0	250,000	0	250,000
Curtailment			0	0
Net periodic benefit cost	4,196,000	4,673,000	8,457,000	9,113,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,014,000	868,000	2,031,000	1,759,000
Interest cost	2,510,000	2,714,000	5,024,000	5,789,000
Amortization of prior service cost	41,000	(523,000)	82,000	(1,046,000)
Recognized net actuarial loss	2,359,000	1,690,000	4,720,000	4,057,000
Net periodic benefit cost	5,924,000	4,749,000	11,857,000	10,559,000
Defined Benefit Plan Contributions By Employer	$ 8,000,000	$ 8,000,000	$ 16,000,000	$ 14,000,000