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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%