Pensions and Other Benefit Programs (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Contributions By Employer	$ 8,000,000
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			23,000,000
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	4,515,000	4,702,000	9,469,000	9,725,000
Interest cost	19,917,000	21,931,000	40,520,000	43,870,000
Expected return on plan assets	(30,194,000)	(31,711,000)	(60,812,000)	(61,529,000)
Amortization of transition credit	0	0	0	0
Amortization of prior service cost	197,000	37,000	402,000	73,000
Recognized net actuarial loss	13,165,000	9,347,000	26,479,000	18,761,000
Settlement	0	0	0	0
Special termination benefits	0	368,000	0	760,000
Curtailment	0	394,000	0	2,096,000
Net periodic benefit cost	7,600,000	5,068,000	16,058,000	13,756,000
Defined Benefit Plan Contributions By Employer			90,000,000
Pension Plans, Defined Benefit [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2,013,000	1,929,000	4,031,000	3,814,000
Interest cost	6,934,000	7,198,000	13,857,000	14,255,000
Expected return on plan assets	(8,041,000)	(8,088,000)	(16,064,000)	(16,033,000)
Amortization of transition credit	(2,000)	(2,000)	(4,000)	(4,000)
Amortization of prior service cost	27,000	44,000	55,000	88,000
Recognized net actuarial loss	3,492,000	2,787,000	6,988,000	5,525,000
Settlement	250,000	0	250,000	0
Special termination benefits	0	10,000	0	10,000
Curtailment	0	224,000	0	224,000
Net periodic benefit cost	4,673,000	4,102,000	9,113,000	7,879,000
Defined Benefit Plan Special Contributions			10,000,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	868,000	796,000	1,759,000	1,667,000
Interest cost	2,714,000	3,300,000	5,789,000	6,771,000
Amortization of prior service cost	(523,000)	(687,000)	(1,046,000)	(1,252,000)
Recognized net actuarial loss	1,690,000	1,839,000	4,057,000	3,833,000
Special termination benefits	0	46,000	0	113,000
Curtailment	0	386,000	0	1,236,000
Net periodic benefit cost	4,749,000	5,680,000	10,559,000	12,368,000
Defined Benefit Plan Contributions By Employer		$ 8,000,000	$ 14,000,000	$ 15,000,000