v2.3.0.15
Retirement Benefits (Details) (USD $)
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Components of net periodic pension expense    
After-tax decrease in accumulated other comprehensive loss$ 26,022,000$ (2,837,000)$ 37,661,000$ 16,309,000
Defined Benefit Pension Plans
    
Components of net periodic pension expense    
Estimated defined benefit pension plan contributions by the Company, lower range  60,000,000 
Estimated defined benefit pension plan contributions by the Company, higher range  100,000,000 
Defined benefit pension plan contributions by the Company, year to date  50,000,000 
Defined Benefit U.S. Pension Plans
    
Components of net periodic pension expense    
Service cost8,960,0009,167,00026,880,00027,501,000
Interest cost9,191,0009,604,00027,575,00028,812,000
Expected return on assets(10,155,000)(10,599,000)(30,467,000)(31,797,000)
Amortization of prior service cost(47,000) (140,000) 
Recognized net actuarial loss3,497,0004,691,00010,491,00014,074,000
Gain on curtailment(618,000) (618,000) 
Net periodic pension expense10,828,00012,863,00033,721,00038,590,000
After-tax decrease in accumulated other comprehensive loss18,000,000   
Projected benefit obligation reduction due to plan amendment29,000,000   
Defined Benefit Non-U.S. Pension Plans
    
Components of net periodic pension expense    
Service cost1,542,0002,608,0005,992,0007,812,000
Interest cost8,537,0007,757,00025,676,00023,305,000
Expected return on assets(10,760,000)(9,068,000)(32,106,000)(27,235,000)
Recognized net actuarial loss1,367,0002,038,0004,464,0006,103,000
Net periodic pension expense$ 686,000$ 3,335,000$ 4,026,000$ 9,985,000