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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards and tax credits | $ 1,010 | $ 952
Deferred revenue | 81 | 89
Accrued bonus | 34 | 27
Expensed costs capitalized for tax | 14 | 16
Investments | 22 | 12
Stock based compensation | 72 | 55
Other | 10 | 6
Total deferred tax assets | 1,243 | 1,157
Deferred tax liabilities: |  |
Depreciation of property and equipment | (228) | (230)
FCC license | (519) | (515)
Other intangible assets | (340) | (102)
Other | (3) | 2
Total deferred tax liabilities | (1,090) | (845)
Net deferred tax assets before valuation allowance | 153 | 312
Valuation allowance | (70) | (66)
Total net deferred tax asset | $ 83 | $ 246

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