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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)

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