Rendering

Component: (Network and Table)
Network
1063 - Disclosure - Landfill and Environmental Remediation Liabilities - Changes to Landfill and Environmental Remediation Liabilities (Detail)
(http://www.wm.com/taxonomy/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesChangesToLandfillAndEnvironmentalRemediationLiabilities)
TableSchedule of Environmental Exit Cost [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000823768 (http://www.sec.gov/CIK)
Environmental Exit Cost [Line Items]Period [Axis]
2013-01-01 - 2013-12-31
2012-01-01 - 2012-12-31
2011-01-01 - 2011-12-31
Environmental Exit Cost By Property [Axis]Environmental Exit Cost By Property [Axis]Environmental Exit Cost By Property [Axis]
Environmental Costs [Member]Accrued Capping Closure Post Closure [Member]Environmental Exit Costs Name Of Property [Domain]Environmental Costs [Member]Accrued Capping Closure Post Closure [Member]Environmental Exit Costs Name Of Property [Domain]Environmental Costs [Member]Accrued Capping Closure Post Closure [Member]Environmental Exit Costs Name Of Property [Domain]
Beginning balance, landfill
 
1,338,000,000  
 
 
1,292,000,000  
 
 
 
 
Obligations incurred and capitalized
xsi:nil  
59,000,000  
 
xsi:nil  
58,000,000  
 
 
 
 
Obligations settled
 
(71,000,000) 
 
 
(87,000,000) 
 
 
 
 
Interest accretion
 
87,000,000  
87,000,000  
 
84,000,000  
84,000,000  
 
 
84,000,000  
Revisions in estimates and interest rate assumptions
 
6,000,000  
20,000,000  
 
(8,000,000) 
15,000,000  
 
 
 
Acquisitions, divestitures and other adjustments
 
2,000,000  
 
 
(1,000,000) 
 
 
 
 
Ending balance, landfill
 
 
1,421,000,000  
 
 
 
 
 
1,338,000,000  
 
 
 
 
 
1,292,000,000  
 
 
 
Beginning balance, environmental remediation
253,000,000  
 
 
273,000,000  
 
 
 
 
 
Obligations settled
(20,000,000) 
 
 
(30,000,000) 
 
 
 
 
 
Interest accretion
4,000,000  
 
 
4,000,000  
 
 
 
 
 
Revisions in estimates and interest rate assumptions
(6,000,000) 
 
 
5,000,000  
 
 
 
 
 
Acquisitions, divestitures and other adjustments
(4,000,000) 
 
 
1,000,000  
 
 
 
 
 
Ending balance, environmental remediation
227,000,000  
 
 
 
227,000,000  
 
253,000,000  
 
 
 
 
 
273,000,000