Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Special Contributions			$ (95,000,000)	$ (123,000,000)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Contributions By Employer			29,000,000
Defined Benefit Plan Special Contributions			85,000,000
Pension Plans, Defined Benefit [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4,735,000	4,862,000	14,204,000	14,587,000
Interest cost	20,260,000	21,935,000	60,780,000	65,805,000
Expected return on plan assets	(30,406,000)	(30,765,000)	(91,218,000)	(92,294,000)
Amortization of transition credit	0	0	0	0
Amortization of prior service cost	200,000	36,000	602,000	109,000
Recognized net actuarial loss	13,240,000	9,381,000	39,719,000	28,142,000
Settlement	0	0	0	0
Special termination benefits	0	229,000	0	989,000
Curtailment	0	435,000	0	2,531,000
Net periodic benefit cost	8,029,000	6,113,000	24,087,000	19,869,000
Defined Benefit Plan Contributions By Employer			92,000,000
Pension Plans, Defined Benefit [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,774,000	1,836,000	5,805,000	5,650,000
Interest cost	6,909,000	7,089,000	20,766,000	21,344,000
Expected return on plan assets	(8,069,000)	(7,945,000)	(24,133,000)	(23,978,000)
Amortization of transition credit	(2,000)	(2,000)	(6,000)	(6,000)
Amortization of prior service cost	28,000	42,000	83,000	130,000
Recognized net actuarial loss	3,558,000	2,782,000	10,546,000	8,307,000
Settlement	192,000	0	442,000	0
Special termination benefits	0	0	0	10,000
Curtailment	0	0	0	224,000
Net periodic benefit cost	4,390,000	3,802,000	13,503,000	11,681,000
Defined Benefit Plan Special Contributions			10,000,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	801,000	834,000	2,560,000	2,501,000
Interest cost	2,896,000	3,387,000	8,685,000	10,158,000
Amortization of prior service cost	(523,000)	(626,000)	(1,569,000)	(1,878,000)
Recognized net actuarial loss	2,054,000	1,917,000	6,111,000	5,750,000
Special termination benefits	0	44,000	0	157,000
Curtailment	0	416,000	0	1,652,000
Net periodic benefit cost	5,228,000	5,972,000	15,787,000	18,340,000
Defined Benefit Plan Contributions By Employer	$ 7,000,000	$ 9,000,000	$ 21,000,000	$ 23,000,000