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Landfill and Environmental Remediation Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2017
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Liabilities for Landfill and Environmental Remediation Costs | Liabilities for landfill and environmental remediation costs are presented in the table below (in millions):
|  | March 31, 2017 |  |  | December 31, 2016 |
|  | Landfill |  |  | Environmental Remediation |  |  | Total |  |  | Landfill |  |  | Environmental Remediation |  |  | Total |
Current (in accrued liabilities) |  | $ | 133 |  |  | $ | 26 |  |  | $ | 159 |  |  | $ | 119 |  |  | $ | 28 |  |  | $ | 147 |
Long-term |  |  | 1,475 |  |  |  | 217 |  |  |  | 1,692 |  |  |  | 1,457 |  |  |  | 218 |  |  |  | 1,675 |
|  | $ | 1,608 |  |  | $ | 243 |  |  | $ | 1,851 |  |  | $ | 1,576 |  |  | $ | 246 |  |  | $ | 1,822 |
Changes to Landfill and Environmental Remediation Liabilities | The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2017 are reflected in the table below (in millions):
|  | Landfill |  |  | Environmental Remediation |
December 31, 2016 |  | $ | 1,576 |  |  | $ | 246 |
Obligations incurred and capitalized |  |  | 15 |  |  |  | — |
Obligations settled |  |  | (14 | ) |  |  | (4 | )
Interest accretion |  |  | 22 |  |  |  | 1 |
Revisions in estimates and interest rate assumptions |  |  | 8 |  |  |  | 1 |
Acquisitions, divestitures and other adjustments |  |  | 1 |  |  |  | (1 | )
March 31, 2017 |  | $ | 1,608 |  |  | $ | 243 |

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- Definition Tabular disclosure of material liabilities for remediation, site restoration, postclosure, monitoring commitments, or other exit costs that may occur on the sale, disposal or abandonment of a property as a result of unanticipated contamination of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q4) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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- Definition Asset Retirement Obligation And Environmental Remediation Rollforward Analysis Table [Text Block] + References No definition available. + Details
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