Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Defined Benefit Pension Plans | United States
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2,415,000	$ 3,799,000
Interest cost	19,416,000	18,371,000
Expected return on plan assets	(25,956,000)	(27,086,000)
Amortization of transition credit	0	0
Amortization of prior service cost	2,000	129,000
Amortization of net actuarial loss	6,160,000	11,037,000
Curtailment	0	814,000
Net periodic benefit cost	2,037,000	7,064,000
Defined Benefit Plan Contributions By Employer	10,000,000
Defined Benefit Pension Plans | Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	908,000	1,582,000
Interest cost	7,169,000	6,823,000
Expected return on plan assets	(9,825,000)	(8,166,000)
Amortization of transition credit	(2,000)	(2,000)
Amortization of prior service cost	(15,000)	28,000
Amortization of net actuarial loss	2,076,000	3,176,000
Curtailment	0	0
Net periodic benefit cost	311,000	3,441,000
Defined Benefit Plan Contributions By Employer	12,000,000
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	728,000	1,017,000
Interest cost	2,462,000	2,514,000
Amortization of prior service cost	40,000	41,000
Amortization of net actuarial loss	1,522,000	2,361,000
Net periodic benefit cost	4,752,000	5,933,000
Defined Benefit Plan Contributions By Employer	$ 7,000,000	$ 8,000,000