Employee Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Benefit Plans (Textuals) [Abstract]
Contribution to pension plans			$ 45,400,000
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	66,000,000		66,000,000
One time charge related to pension settlement (pre-tax)	1,300,000		1,300,000
One time charge related to pension settlement (after-tax)	800,000		800,000
Pension Benefits [Member]
Amortization of:
Net periodic benefit cost	11,630,000	12,408,000	32,222,000	36,976,000
Postretirement Benefits [Member]
Amortization of:
Net periodic benefit cost	575,000	712,000	1,733,000	2,123,000
Company Administered Plan [Member] | Pension Benefits [Member]
Components of net periodic benefit cost
Service cost	3,994,000	3,861,000	12,002,000	11,594,000
Interest Cost	22,418,000	23,651,000	67,153,000	70,903,000
Expected Return on Plan Assets	26,498,000	24,091,000	79,335,000	72,203,000
Amortization of:
Net actuarial loss	8,782,000	7,803,000	26,347,000	23,390,000
Prior service credit	(454,000)	(570,000)	(1,363,000)	(1,706,000)
Net periodic benefit cost	8,242,000	10,654,000	24,804,000	31,978,000
Company Administered Plan [Member] | Pension Benefits U.S. [Member]
Amortization of:
Net periodic benefit cost	8,424,000	9,749,000	25,317,000	29,240,000
Company Administered Plan [Member] | Pension Benefits Non-U.S. [Member]
Amortization of:
Net periodic benefit cost	(182,000)	905,000	(513,000)	2,738,000
Company Administered Plan [Member] | Postretirement Benefits [Member]
Components of net periodic benefit cost
Service cost	245,000	274,000	738,000	821,000
Interest Cost	392,000	501,000	1,179,000	1,490,000
Amortization of:
Net actuarial loss	(4,000)	(5,000)	(11,000)	(15,000)
Prior service credit	(58,000)	(58,000)	(173,000)	(173,000)
Net periodic benefit cost	575,000	712,000	1,733,000	2,123,000
Company Administered Plan [Member] | Postretirement Benefits U.S [Member]
Amortization of:
Net periodic benefit cost	402,000	540,000	1,210,000	1,611,000
Company Administered Plan [Member] | Postretirement Benefits Non-U.S [Member]
Amortization of:
Net periodic benefit cost	173,000	172,000	523,000	512,000
Union Administered Plan [Member] | Pension Benefits [Member]
Amortization of:
Net periodic benefit cost	$ 3,388,000	$ 1,754,000	$ 7,418,000	$ 4,998,000