Component: (Network and Table) | |
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Network | 1063 - Disclosure - Landfill and Environmental Remediation Liabilities - Changes to Landfill and Environmental Remediation Liabilities (Detail) (http://www.wm.com/taxonomy/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesChangesToLandfillAndEnvironmentalRemediationLiabilities) |
Table | Schedule of Environmental Exit Cost [Table] |
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 | |||||||||
Obligations settled | ( | ( | |||||||
Interest accretion | 87,000,000 | 84,000,000 | 84,000,000 | ||||||
Revisions in estimates and interest rate assumptions | ( | ||||||||
Acquisitions, divestitures and other adjustments | ( | ||||||||
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 | ( | ( | |||||||
Interest accretion | |||||||||
Revisions in estimates and interest rate assumptions | ( | ||||||||
Acquisitions, divestitures and other adjustments | ( | ||||||||
Ending balance, environmental remediation | 227,000,000 | 227,000,000 | 253,000,000 | 273,000,000 |