Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Amortization of transition credit	$ 2,000
Amortization of prior service cost	(198,000)
Recognized net actuarial loss	16,574,000
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	4,000,000
Pension Plans, Defined Benefit [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3,799,000	4,954,000
Interest cost	18,371,000	20,603,000
Expected return on plan assets	(27,086,000)	(30,618,000)
Amortization of transition credit	0	0
Amortization of prior service cost	129,000	205,000
Recognized net actuarial loss	11,037,000	13,314,000
Curtailment	814,000	0
Net periodic benefit cost	7,064,000	8,458,000
Defined Benefit Plan Contributions By Employer	3,000,000
Pension Plans, Defined Benefit [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,582,000	2,018,000
Interest cost	6,823,000	6,923,000
Expected return on plan assets	(8,166,000)	(8,023,000)
Amortization of transition credit	(2,000)	(2,000)
Amortization of prior service cost	28,000	28,000
Recognized net actuarial loss	3,176,000	3,496,000
Curtailment	0	0
Net periodic benefit cost	3,441,000	4,440,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,017,000	891,000
Interest cost	2,514,000	3,075,000
Amortization of prior service cost	41,000	(523,000)
Recognized net actuarial loss	2,361,000	2,367,000
Net periodic benefit cost	5,933,000	5,810,000
Defined Benefit Plan Contributions By Employer	$ 8,000,000	$ 6,000,000