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Income Taxes - Components of Net Deferred Tax Assets (Liabilities) (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Deferred tax assets:    
Net operating loss, capital loss and tax credit carry-forwards $ 285 $ 280
Landfill and environmental remediation liabilities 116 120
Miscellaneous and other reserves, net 355 373
Subtotal 756 773
Valuation allowance (292) (273)
Deferred tax liabilities:    
Property and equipment (728) (709)
Goodwill and other intangibles (1,218) (1,182)
Net deferred tax liabilities $ (1,482) $ (1,391)