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Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans (Textual) [Abstract]      
Expected cash contribution to benefit plan $ 4    
Profit Sharing Retirement Savings Plans and Defined Benefit Pension Plans (Additional Textual) [Abstract]      
Provisions charged from operations for the profit sharing plan and retirement savings plans 32 27 38
Contribution of common stock to profit sharing plan 0 0.3  
Equity securities minimum 40.00%    
Equity securities maximum 50.00%    
Percentage of equity allocation, maximum 70.00%    
Fixed income minimum 50.00%    
Fixed income maximum 60.00%    
Percentage of fixed income allocation, maximum 30.00%    
Minimum percentage of invested in real estate funds 90.00%    
Maximum amount invested in alternative investments 0.5    
U.S. pension plans [Member]
     
Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans (Textual) [Abstract]      
Other liabilities 41.0 14.0  
Non-U.S. pension plans [Member]
     
Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans (Textual) [Abstract]      
Expected cash contribution to benefit plan $ 35