v3.5.0.2
Landfill and Environmental Costs - Accrued Landfill and Environmental Costs (Details) - USD ($)
$ in Millions
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Environmental Remediation Obligations [Abstract]        
Landfill final capping, closure and post-closure liabilities $ 1,211.9 $ 1,181.6 $ 1,188.5 $ 1,144.3
Environmental remediation liabilities 615.1 646.1 $ 667.6 $ 697.5
Total accrued landfill and environmental costs 1,827.0 1,827.7    
Less: current portion (177.0) (149.8)    
Long-term portion $ 1,650.0 $ 1,677.9