v2.4.0.6
Commitments and Contingencies (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Employees
LegalMatter
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2008
May 19, 2011
Sep. 09, 2010
Plaintiffs
Feb. 10, 2010
LegalMatter
Dec. 23, 2009
Plaintiffs
Oct. 13, 2009
Plaintiffs
Oct. 08, 2008
Plaintiffs
Sep. 24, 2008
Jul. 03, 2008
Aug. 17, 2007
Employees
Site Contingency [Line Items]                            
Remediation liability   $ 543.7 $ 552.1 $ 554.1 $ 389.9                  
Commitments and Contingencies (Textual) [Abstract]                            
Losses accrued related to legal proceedings   114                        
Loss contingency additional potential liability   109                        
Number of plaintiffs filed cases in the Tuscarawas County Ohio Court of Common Pleas             600     82 700      
Actions consolidated in an order issued by court               2            
Amount of compensatory damages as relief requested               in excess of $25000            
Counts of amended complaint   3                        
Number of employees unlawfully fired   3                        
Plaintiff alleges unlawfully fired in retaliation                           Plaintiff alleges that he was unlawfully fired in retaliation for refusing to discharge or demote three employees who were all over 50 years old.
Number of discharge or demote employees                           3
Total damage                         46.6  
Punitive damages           7.0             43.1  
Pre-judgment interest                       0.3    
Attorney fees and litigation costs                       1.1    
Rate of post-judgment interest 3.00%   4.00% 5.00% 8.00%                  
Amount of post judgment interest in middle of 2012   9.5                        
Litigation Settlement, Expense   11                        
Additional plaintiffs approximately filed suit in the Circuit Court                 2,550          
Loss contingency class action lawsuit plaintiff criteria for Livingston matter                   The court granted class certification for all those living within a six mile radius of the CECOS site between the years 1977 and 1990.        
Rent expense   49.9 51.6 60.1                    
Percentage of ownership interest in company   19.90%                        
Outstanding amount for land fill operations   893.5 855.0                      
Reimbursement obligations on surety bonds   45.0 45.0                      
Letter of credit [Member]
                           
Site Contingency [Line Items]                            
Letter of credit   950.2 1,037.5                      
Countywide Landfill [Member]
                           
Site Contingency [Line Items]                            
Remediation liability     56.8                      
Remainder Remediation liability till 2012   5.0                        
Damages sought   The relief requested on behalf of each plaintiff in the consolidated action is: (1) an award of compensatory damages according to proof in an amount in excess of $25,000 for each of the three counts of the amended complaint; (2) an award of punitive damages in the amount of two times compensatory damages, pursuant to applicable statute, or in such amount as may be awarded at trial for each of the three counts of the amended complaint; (3) costs for medical screening and monitoring of each plaintiff; (4) interest on the damages according to law; (5) costs and disbursements of the lawsuit; (6) reasonable fees for attorneys and expert witnesses; and (7) any other and further relief as the court deems just, proper and equitable. Plaintiffs filed an amended consolidated complaint on September 9, 2010, which no longer asserts a claim for medical monitoring                        
Redemption loss range Minimum   53                        
Redemption loss range Maximum   74                        
Congress Development Landfill [Member]
                           
Site Contingency [Line Items]                            
Remediation liability     83.6                      
Remainder Remediation liability till 2012   7.4                        
Damages sought   In excess of $50 million                        
Redemption loss range Minimum   53                        
Redemption loss range Maximum   154                        
Minimum damages sought   50                        
Punitive damages minimum   $ 50