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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016 USD ($) site | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |
Inflation rate |  | 2.50% | 2.50% | 2.50%
Number of landfill sites with expansions that require the Chief Financial Officer to approve the inclusion of the unpermitted airspace | site |  | 3 |  |
Environmental remediation reasonably possible additional losses high estimate |  | $ 120 |  |
Environmental remediation liabilities |  | 246 |  |
Environmental remediation liabilities that have never been subject to inflation or discounting |  | $ 90 | $ 52 |
Increase (decrease) in environmental remediation liabilities due to the impacts of inflation and discounting |  |  | (3) |
Other intangible assets, amortization method |  | 150% declining balance approach or a straight-line basis |  |
Restricted trust and escrow accounts |  | $ 105 | 105 |
Total interest costs |  | 394 | 407 | $ 487
Total capitalized interest costs |  | 9 | 16 | $ 16
Other Receivables [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Receivables related to income tax payments in excess of our provision for income taxes |  | $ 352 | $ 439 |
Non-compete Covenant [Member] | Minimum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Amortizable period of the intangible assets |  | 2 years |  |
Non-compete Covenant [Member] | Maximum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Amortizable period of the intangible assets |  | 5 years |  |
Supplier Relationships [Member] | Customer Relationships [Member] | Minimum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Amortizable period of the intangible assets |  | 10 years |  |
Supplier Relationships [Member] | Customer Relationships [Member] | Maximum [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Amortizable period of the intangible assets |  | 15 years |  |
Landfill [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Required period to maintain and monitor landfill sites |  | 30 years |  |
Credit adjusted, risk free discount rate applicable to long-term asset retirement obligations |  | 6.00% |  |
Number of landfills sites with expansion | site |  | 16 |  |
Landfill [Member] | Scenario, Forecast [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Expected credit adjusted, risk free discount rate applied to liabilities incurred | 4.00% |  |  |
Accounts Receivable Net [Member] | Concentration of Credit Risk [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Maximum accounts receivable from single customer in percentage to total accounts receivable |  | 5.00% | 5.00% |

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