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Income Taxes - Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred income tax assets |  |
Employee pensions and other liabilities | $ 63 | $ 49
Other balance sheet reserves and allowances | 18 | 18
Operating lease liabilities | 14 | 0
Tax loss and credit carryforwards | 80 | 63
Deferred revenue | 12 | 20
Total deferred income tax assets | 187 | 150
Valuation allowance | (45) | (39)
Net deferred income tax assets | 142 | 111
Deferred income tax liabilities |  |
Intangibles and capitalized software | 8 | 17
Right of use assets - operating lease | 13 | 0
Property and equipment | 12 | 11
Other | 28 | 19
Total deferred income tax liabilities | 61 | 47
Total net deferred income tax assets | $ 81 | $ 64

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