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Landfill and Environmental Remediation Liabilities - Changes to Landfill and Environmental Remediation Liabilities (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Environmental Exit Cost [Line Items] |  |  |  |
Risk-free discount rate of the obligations |  | 2.50% | 2.25% | 2.00%
Increase (Decrease) to operating expenses due to change in discount rate used to estimate the present value of environmental remediation obligations |  | $ (2) | $ (3) |
Increase in cost estimate associated with environmental remediation liability |  | 44 |  |
San Jacinto Waste Pits [Member] |  |  |  |
Environmental Exit Cost [Line Items] |  |  |  |
Increase in cost estimate associated with environmental remediation liability | $ 42 | 44 |  |
Landfill [Member] |  |  |  |
Environmental Exit Cost [Line Items] |  |  |  |
Increase (decrease) related to year-end review of landfill capping closure and post closure obligations included in landfill liabilities |  | (11) | (18) |
Increase in landfill liabilities related to landfill impairment |  | $ 13 |  |
Increase (Decrease) in landfill liabilities |  |  | 7 |
Deffenbaugh Disposal, Inc. [Member] | Landfill [Member] |  |  |  |
Environmental Exit Cost [Line Items] |  |  |  |
Increase (Decrease) in landfill liabilities |  |  | $ 18 |

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- Definition Rate applied to the undiscounted amount of environmental loss contingencies to arrive at the present value recorded as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 2: 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.Q1) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Asset Retirement Obligation Increase Decrease For Acquisitions Divestitures And Other Adjustments + References No definition available. + Details
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- Definition Represents the increase (decrease) included in the total revision of the asset retirement obligation during the period related to the increase (decrease) related to the year-end annual review of final capping, closure and post-closure obligations. + References No definition available. + Details
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- Definition Increase decrease in liability due to asset impairment charges. + References No definition available. + Details
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- Definition Increase (decrease) to operating expenses due to change in discount rate used to estimate present value of environmental remediation obligations. + References No definition available. + Details
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